diff --git a/frontend/components/dashboard/DetailPanel.tsx b/frontend/components/dashboard/DetailPanel.tsx
index d24de9dc..18c2c46c 100644
--- a/frontend/components/dashboard/DetailPanel.tsx
+++ b/frontend/components/dashboard/DetailPanel.tsx
@@ -13,11 +13,9 @@ import { CityDetail } from "@/lib/dashboard-types";
 import { trackAppEvent } from "@/lib/app-analytics";
 import { getTodayPolymarketUrl } from "@/lib/polymarket-market-links";
 import { getTemperatureChartData } from "@/lib/chart-utils";
-import {
-  getCityProfileStats,
-  getRiskBadgeLabel,
-} from "@/lib/dashboard-utils";
+import { getCityProfileStats } from "@/lib/dashboard-utils";
 import { normalizeObservationSourceLabel } from "@/lib/source-labels";
+import { getRiskBadgeLabel } from "@/lib/weather-summary-utils";
 
 function DetailMiniTemperatureChart({ detail }: { detail: CityDetail }) {
   const { locale, t } = useI18n();
diff --git a/frontend/components/dashboard/FutureForecastModal.tsx b/frontend/components/dashboard/FutureForecastModal.tsx
index ca803453..9d02c0f7 100644
--- a/frontend/components/dashboard/FutureForecastModal.tsx
+++ b/frontend/components/dashboard/FutureForecastModal.tsx
@@ -26,11 +26,11 @@ import {
 import { getTemperatureChartData } from "@/lib/chart-utils";
 import {
   getFutureModalView,
-  getWeatherSummary,
 } from "@/lib/dashboard-utils";
 import { getModelView, getProbabilityView } from "@/lib/model-utils";
 import { getTodayPaceView } from "@/lib/pace-utils";
 import { dashboardClient } from "@/lib/dashboard-client";
+import { getWeatherSummary } from "@/lib/weather-summary-utils";
 import {
   normalizeObservationSourceCode,
   normalizeObservationSourceLabel,
diff --git a/frontend/components/dashboard/PanelSections.tsx b/frontend/components/dashboard/PanelSections.tsx
index 46bb0c42..139b1aab 100644
--- a/frontend/components/dashboard/PanelSections.tsx
+++ b/frontend/components/dashboard/PanelSections.tsx
@@ -13,16 +13,16 @@ import {
   ProbabilityBucket,
 } from "@/lib/dashboard-types";
 import { getTemperatureChartData } from "@/lib/chart-utils";
-import {
-  getHeroMetaItems,
-  getRiskBadgeLabel,
-  getWeatherSummary,
-} from "@/lib/dashboard-utils";
 import { getModelView, getProbabilityView } from "@/lib/model-utils";
 import {
   normalizeObservationSourceCode,
   normalizeObservationSourceLabel,
 } from "@/lib/source-labels";
+import {
+  getHeroMetaItems,
+  getRiskBadgeLabel,
+  getWeatherSummary,
+} from "@/lib/weather-summary-utils";
 
 function EmptyState({ text }: { text: string }) {
   return (
diff --git a/frontend/lib/dashboard-utils.ts b/frontend/lib/dashboard-utils.ts
index 0fcdb183..fed8ab3b 100644
--- a/frontend/lib/dashboard-utils.ts
+++ b/frontend/lib/dashboard-utils.ts
@@ -20,46 +20,23 @@ import {
 } from "@/lib/temperature-utils";
 import { formatTafMarkerType } from "@/lib/taf-utils";
 import { normalizeHm } from "@/lib/time-utils";
+import { getWeatherSummary } from "@/lib/weather-summary-utils";
 
 export { getTemperatureChartData } from "@/lib/chart-utils";
 export { getModelView, getProbabilityView } from "@/lib/model-utils";
 export { getTodayPaceView } from "@/lib/pace-utils";
+export {
+  getHeroMetaItems,
+  getRiskBadgeLabel,
+  getWeatherSummary,
+  translateMetar,
+} from "@/lib/weather-summary-utils";
 export {
   formatTemperatureValue,
   normalizeTemperatureLabel,
   normalizeTemperatureSymbol,
 } from "@/lib/temperature-utils";
 
-const METAR_WX_MAP: Record<
-  string,
-  { en: string; icon: string; zh: string }
-> = {
-  VCSH: { en: "Showers nearby", icon: "🌦️", zh: "附近有阵雨" },
-  SHRA: { en: "Rain showers", icon: "🌦️", zh: "阵雨" },
-  "-SHRA": { en: "Light rain showers", icon: "🌦️", zh: "小阵雨" },
-  "+SHRA": { en: "Heavy rain showers", icon: "⛈️", zh: "强阵雨" },
-  VCRA: { en: "Rain nearby", icon: "🌧️", zh: "附近有降雨" },
-  TSRA: { en: "Thunderstorms with rain", icon: "⛈️", zh: "雷雨" },
-  "-TSRA": { en: "Light thunderstorms with rain", icon: "⛈️", zh: "小雷雨" },
-  "+TSRA": { en: "Heavy thunderstorms with rain", icon: "⛈️", zh: "强雷雨" },
-  RA: { en: "Rain", icon: "🌧️", zh: "降雨" },
-  "-RA": { en: "Light rain", icon: "🌦️", zh: "小雨" },
-  "+RA": { en: "Heavy rain", icon: "⛈️", zh: "强降雨" },
-  SN: { en: "Snow", icon: "❄️", zh: "降雪" },
-  "-SN": { en: "Light snow", icon: "🌨️", zh: "小雪" },
-  "+SN": { en: "Heavy snow", icon: "🌨️", zh: "大雪" },
-  DZ: { en: "Drizzle", icon: "🌦️", zh: "毛毛雨" },
-  FG: { en: "Fog", icon: "🌫️", zh: "雾" },
-  VCFG: { en: "Fog nearby", icon: "🌫️", zh: "附近有雾" },
-  MIFG: { en: "Shallow fog", icon: "🌫️", zh: "浅雾" },
-  BR: { en: "Mist", icon: "🌫️", zh: "薄雾" },
-  HZ: { en: "Haze", icon: "🌫️", zh: "霾" },
-  TS: { en: "Thunderstorm", icon: "⛈️", zh: "雷暴" },
-  VCTS: { en: "Nearby thunderstorm", icon: "⛈️", zh: "附近雷暴" },
-  SQ: { en: "Squall", icon: "💨", zh: "飑线" },
-  GS: { en: "Hail", icon: "🌨️", zh: "冰雹" },
-};
-
 function isEnglish(locale: Locale) {
   return locale === "en-US";
 }
@@ -94,159 +71,6 @@ function getLocalizedDynamicCommentary(
   };
 }
 
-function normalizeCloudSummary(
-  cloudDesc: string | null | undefined,
-  locale: Locale,
-): { icon: string; text: string } {
-  const raw = String(cloudDesc || "").trim();
-  if (!raw) {
-    return { icon: "🔍", text: isEnglish(locale) ? "Unknown" : "未知" };
-  }
-
-  const lower = raw.toLowerCase();
-  if (
-    raw.includes("晴") ||
-    raw.includes("晴朗") ||
-    lower.includes("clear") ||
-    lower.includes("sunny")
-  ) {
-    return { icon: "☀️", text: isEnglish(locale) ? "Clear" : "晴朗" };
-  }
-  if (raw.includes("阴") || lower.includes("overcast")) {
-    return { icon: "☁️", text: isEnglish(locale) ? "Overcast" : "阴天" };
-  }
-  if (raw.includes("多云") || lower.includes("cloud")) {
-    return { icon: "☁️", text: isEnglish(locale) ? "Cloudy" : "多云" };
-  }
-  if (raw.includes("少云") || lower.includes("few")) {
-    return { icon: "🌤️", text: isEnglish(locale) ? "Mostly clear" : "少云" };
-  }
-  if (raw.includes("散云") || lower.includes("scattered")) {
-    return { icon: "⛅", text: isEnglish(locale) ? "Partly cloudy" : "散云" };
-  }
-  return { icon: "🔍", text: raw };
-}
-
-export function translateMetar(code?: string | null, locale: Locale = "zh-CN") {
-  if (!code) return null;
-  const metarCode = String(code);
-  for (const [key, value] of Object.entries(METAR_WX_MAP)) {
-    if (metarCode.includes(key)) {
-      return {
-        icon: value.icon,
-        label: isEnglish(locale) ? value.en : value.zh,
-      };
-    }
-  }
-  return { icon: "🔍", label: metarCode };
-}
-
-export function getRiskBadgeLabel(
-  level?: string | null,
-  locale: Locale = "zh-CN",
-) {
-  if (isEnglish(locale)) {
-    return (
-      {
-        high: "🔴 High Risk",
-        low: "🟢 Low Risk",
-        medium: "🟠 Medium Risk",
-      }[String(level || "low")] || "Unknown Risk"
-    );
-  }
-  return (
-    {
-      high: "🔴 高风险",
-      low: "🟢 低风险",
-      medium: "🟠 中风险",
-    }[String(level || "low")] || "未知风险"
-  );
-}
-
-export function getWeatherSummary(detail: CityDetail, locale: Locale = "zh-CN") {
-  const current = detail.current || {};
-  const cloud = normalizeCloudSummary(current.cloud_desc, locale);
-  let weatherText = cloud.text;
-  let weatherIcon = cloud.icon;
-
-  if (current.wx_desc) {
-    const translated = translateMetar(current.wx_desc, locale);
-    if (translated) {
-      weatherText = translated.label;
-      weatherIcon = translated.icon;
-    }
-  }
-
-  return { weatherIcon, weatherText };
-}
-
-export function getHeroMetaItems(detail: CityDetail, locale: Locale = "zh-CN") {
-  const current = detail.current || {};
-  const parts: string[] = [];
-  const sourceTag = getRealtimeObservationTag(detail);
-  const suppressAnkaraMgmObservation = isTurkishMgmCity(detail);
-
-  if (current.obs_time) {
-    const ageText =
-      current.obs_age_min != null && current.obs_age_min >= 30
-        ? isEnglish(locale)
-          ? ` (${current.obs_age_min} min ago)`
-          : `（${current.obs_age_min} 分钟前）`
-        : "";
-    parts.push(`✈️ ${sourceTag} ${current.obs_time}${ageText}`);
-  }
-
-  if (current.wx_desc) {
-    const translated = translateMetar(current.wx_desc, locale);
-    if (translated) {
-      parts.push(`${translated.icon} ${translated.label}`);
-    }
-  } else if (current.cloud_desc) {
-    const cloud = normalizeCloudSummary(current.cloud_desc, locale);
-    parts.push(`${cloud.icon} ${cloud.text}`);
-  }
-
-  if (current.wind_speed_kt != null) {
-    parts.push(`💨 ${current.wind_speed_kt}kt`);
-  }
-
-  if (current.visibility_mi != null) {
-    parts.push(`👁️ ${current.visibility_mi}mi`);
-  }
-
-  if (!suppressAnkaraMgmObservation && detail.mgm?.temp != null) {
-    const timeMatch = detail.mgm.time?.match(/T?(\d{2}:\d{2})/);
-    const timeText = timeMatch ? ` @${timeMatch[1]}` : "";
-    parts.push(
-      isEnglish(locale)
-        ? `🛰 MGM Obs: ${detail.mgm.temp}${detail.temp_symbol}${timeText}`
-        : `🛰 MGM 实测: ${detail.mgm.temp}${detail.temp_symbol}${timeText}`,
-    );
-  }
-
-  const trend = detail.trend || {};
-  if (trend.is_dead_market) {
-    parts.push(isEnglish(locale) ? "☠️ Flat market" : "☠️ 死盘");
-  } else if (trend.direction && trend.direction !== "unknown") {
-    const labels: Record<string, string> = isEnglish(locale)
-      ? {
-          falling: "📉 Cooling",
-          mixed: "📊 Choppy",
-          rising: "📈 Warming",
-          stagnant: "⏸ Flat",
-        }
-      : {
-          falling: "📉 降温中",
-          mixed: "📊 波动中",
-          rising: "📈 升温中",
-          stagnant: "⏸ 持平",
-        };
-    parts.push(labels[trend.direction] || trend.direction);
-  }
-
-  return parts;
-}
-
 export function parseAiAnalysis(analysis: CityDetail["ai_analysis"]) {
   const fallback = {
     bullets: [] as string[],
diff --git a/frontend/lib/weather-summary-utils.ts b/frontend/lib/weather-summary-utils.ts
new file mode 100644
index 00000000..ab26e4de
--- /dev/null
+++ b/frontend/lib/weather-summary-utils.ts
@@ -0,0 +1,193 @@
+import type { CityDetail } from "@/lib/dashboard-types";
+import type { Locale } from "@/lib/i18n";
+import {
+  getRealtimeObservationTag,
+  isTurkishMgmCity,
+} from "@/lib/observation-source-utils";
+
+const METAR_WX_MAP: Record<
+  string,
+  { en: string; icon: string; zh: string }
+> = {
+  VCSH: { en: "Showers nearby", icon: "🌦️", zh: "附近有阵雨" },
+  SHRA: { en: "Rain showers", icon: "🌦️", zh: "阵雨" },
+  "-SHRA": { en: "Light rain showers", icon: "🌦️", zh: "小阵雨" },
+  "+SHRA": { en: "Heavy rain showers", icon: "⛈️", zh: "强阵雨" },
+  VCRA: { en: "Rain nearby", icon: "🌧️", zh: "附近有降雨" },
+  TSRA: { en: "Thunderstorms with rain", icon: "⛈️", zh: "雷雨" },
+  "-TSRA": { en: "Light thunderstorms with rain", icon: "⛈️", zh: "小雷雨" },
+  "+TSRA": { en: "Heavy thunderstorms with rain", icon: "⛈️", zh: "强雷雨" },
+  RA: { en: "Rain", icon: "🌧️", zh: "降雨" },
+  "-RA": { en: "Light rain", icon: "🌦️", zh: "小雨" },
+  "+RA": { en: "Heavy rain", icon: "⛈️", zh: "强降雨" },
+  SN: { en: "Snow", icon: "❄️", zh: "降雪" },
+  "-SN": { en: "Light snow", icon: "🌨️", zh: "小雪" },
+  "+SN": { en: "Heavy snow", icon: "🌨️", zh: "大雪" },
+  DZ: { en: "Drizzle", icon: "🌦️", zh: "毛毛雨" },
+  FG: { en: "Fog", icon: "🌫️", zh: "雾" },
+  VCFG: { en: "Fog nearby", icon: "🌫️", zh: "附近有雾" },
+  MIFG: { en: "Shallow fog", icon: "🌫️", zh: "浅雾" },
+  BR: { en: "Mist", icon: "🌫️", zh: "薄雾" },
+  HZ: { en: "Haze", icon: "🌫️", zh: "霾" },
+  TS: { en: "Thunderstorm", icon: "⛈️", zh: "雷暴" },
+  VCTS: { en: "Nearby thunderstorm", icon: "⛈️", zh: "附近雷暴" },
+  SQ: { en: "Squall", icon: "💨", zh: "飑线" },
+  GS: { en: "Hail", icon: "🌨️", zh: "冰雹" },
+};
+
+function isEnglish(locale: Locale) {
+  return locale === "en-US";
+}
+
+function normalizeCloudSummary(
+  cloudDesc: string | null | undefined,
+  locale: Locale,
+): { icon: string; text: string } {
+  const raw = String(cloudDesc || "").trim();
+  if (!raw) {
+    return { icon: "🔍", text: isEnglish(locale) ? "Unknown" : "未知" };
+  }
+
+  const lower = raw.toLowerCase();
+  if (
+    raw.includes("晴") ||
+    raw.includes("晴朗") ||
+    lower.includes("clear") ||
+    lower.includes("sunny")
+  ) {
+    return { icon: "☀️", text: isEnglish(locale) ? "Clear" : "晴朗" };
+  }
+  if (raw.includes("阴") || lower.includes("overcast")) {
+    return { icon: "☁️", text: isEnglish(locale) ? "Overcast" : "阴天" };
+  }
+  if (raw.includes("多云") || lower.includes("cloud")) {
+    return { icon: "☁️", text: isEnglish(locale) ? "Cloudy" : "多云" };
+  }
+  if (raw.includes("少云") || lower.includes("few")) {
+    return { icon: "🌤️", text: isEnglish(locale) ? "Mostly clear" : "少云" };
+  }
+  if (raw.includes("散云") || lower.includes("scattered")) {
+    return { icon: "⛅", text: isEnglish(locale) ? "Partly cloudy" : "散云" };
+  }
+  return { icon: "🔍", text: raw };
+}
+
+export function translateMetar(code?: string | null, locale: Locale = "zh-CN") {
+  if (!code) return null;
+  const metarCode = String(code);
+  for (const [key, value] of Object.entries(METAR_WX_MAP)) {
+    if (metarCode.includes(key)) {
+      return {
+        icon: value.icon,
+        label: isEnglish(locale) ? value.en : value.zh,
+      };
+    }
+  }
+  return { icon: "🔍", label: metarCode };
+}
+
+export function getRiskBadgeLabel(
+  level?: string | null,
+  locale: Locale = "zh-CN",
+) {
+  if (isEnglish(locale)) {
+    return (
+      {
+        high: "🔴 High Risk",
+        low: "🟢 Low Risk",
+        medium: "🟠 Medium Risk",
+      }[String(level || "low")] || "Unknown Risk"
+    );
+  }
+  return (
+    {
+      high: "🔴 高风险",
+      low: "🟢 低风险",
+      medium: "🟠 中风险",
+    }[String(level || "low")] || "未知风险"
+  );
+}
+
+export function getWeatherSummary(detail: CityDetail, locale: Locale = "zh-CN") {
+  const current = detail.current || {};
+  const cloud = normalizeCloudSummary(current.cloud_desc, locale);
+  let weatherText = cloud.text;
+  let weatherIcon = cloud.icon;
+
+  if (current.wx_desc) {
+    const translated = translateMetar(current.wx_desc, locale);
+    if (translated) {
+      weatherText = translated.label;
+      weatherIcon = translated.icon;
+    }
+  }
+
+  return { weatherIcon, weatherText };
+}
+
+export function getHeroMetaItems(detail: CityDetail, locale: Locale = "zh-CN") {
+  const current = detail.current || {};
+  const parts: string[] = [];
+  const sourceTag = getRealtimeObservationTag(detail);
+  const suppressAnkaraMgmObservation = isTurkishMgmCity(detail);
+
+  if (current.obs_time) {
+    const ageText =
+      current.obs_age_min != null && current.obs_age_min >= 30
+        ? isEnglish(locale)
+          ? ` (${current.obs_age_min} min ago)`
+          : `（${current.obs_age_min} 分钟前）`
+        : "";
+    parts.push(`✈️ ${sourceTag} ${current.obs_time}${ageText}`);
+  }
+
+  if (current.wx_desc) {
+    const translated = translateMetar(current.wx_desc, locale);
+    if (translated) {
+      parts.push(`${translated.icon} ${translated.label}`);
+    }
+  } else if (current.cloud_desc) {
+    const cloud = normalizeCloudSummary(current.cloud_desc, locale);
+    parts.push(`${cloud.icon} ${cloud.text}`);
+  }
+
+  if (current.wind_speed_kt != null) {
+    parts.push(`💨 ${current.wind_speed_kt}kt`);
+  }
+
+  if (current.visibility_mi != null) {
+    parts.push(`👁️ ${current.visibility_mi}mi`);
+  }
+
+  if (!suppressAnkaraMgmObservation && detail.mgm?.temp != null) {
+    const timeMatch = detail.mgm.time?.match(/T?(\d{2}:\d{2})/);
+    const timeText = timeMatch ? ` @${timeMatch[1]}` : "";
+    parts.push(
+      isEnglish(locale)
+        ? `🛰 MGM Obs: ${detail.mgm.temp}${detail.temp_symbol}${timeText}`
+        : `🛰 MGM 实测: ${detail.mgm.temp}${detail.temp_symbol}${timeText}`,
+    );
+  }
+
+  const trend = detail.trend || {};
+  if (trend.is_dead_market) {
+    parts.push(isEnglish(locale) ? "☠️ Flat market" : "☠️ 死盘");
+  } else if (trend.direction && trend.direction !== "unknown") {
+    const labels: Record<string, string> = isEnglish(locale)
+      ? {
+          falling: "📉 Cooling",
+          mixed: "📊 Choppy",
+          rising: "📈 Warming",
+          stagnant: "⏸ Flat",
+        }
+      : {
+          falling: "📉 降温中",
+          mixed: "📊 波动中",
+          rising: "📈 升温中",
+          stagnant: "⏸ 持平",
+        };
+    parts.push(labels[trend.direction] || trend.direction);
+  }
+
+  return parts;
+}