diff --git a/frontend/components/dashboard/DetailPanel.tsx b/frontend/components/dashboard/DetailPanel.tsx
index 8ba0690b..4cb74a55 100644
--- a/frontend/components/dashboard/DetailPanel.tsx
+++ b/frontend/components/dashboard/DetailPanel.tsx
@@ -6,7 +6,6 @@ import { useRouter } from "next/navigation";
 import { useEffect, useMemo, useRef, useState } from "react";
 import { ForecastTable } from "@/components/dashboard/PanelSections";
 import {
-  useDashboardHistory,
   useDashboardModal,
   useDashboardStore,
   useProAccess,
@@ -38,7 +37,6 @@ export function DetailPanel({
 } = {}) {
   const store = useDashboardStore();
   const modal = useDashboardModal();
-  const history = useDashboardHistory();
   const { proAccess } = useProAccess();
   const { locale, t } = useI18n();
   const router = useRouter();
@@ -76,7 +74,7 @@ export function DetailPanel({
   );
   const [heavyContentReady, setHeavyContentReady] = useState(false);
   const isOverlayOpen =
-    Boolean(modal.futureModalDate) || history.historyState.isOpen;
+    Boolean(modal.futureModalDate);
   const isVisible = isRail
     ? Boolean(store.selectedCity) && !isOverlayOpen
     : store.isPanelOpen && Boolean(store.selectedCity) && !isOverlayOpen;
@@ -139,24 +137,20 @@ export function DetailPanel({
     }
   };
 
-  const handleFeatureAccess = (feature: "today" | "history") => {
+  const handleTodayAccess = () => {
     blurActiveElement();
 
     if (!isPro) {
       trackAppEvent("paywall_feature_clicked", {
         entry: "detail_panel",
-        feature,
+        feature: "today",
         city: store.selectedCity,
         user_state: isAuthenticated ? "logged_in" : "guest",
       });
     }
 
     if (isPro) {
-      if (feature === "today") {
-        void modal.openTodayModal();
-        return;
-      }
-      void history.openHistory();
+      void modal.openTodayModal();
       return;
     }
 
@@ -165,11 +159,7 @@ export function DetailPanel({
       return;
     }
 
-    if (feature === "today") {
-      void modal.openTodayModal();
-      return;
-    }
-    void history.openHistory();
+    void modal.openTodayModal();
   };
 
   useEffect(() => {
@@ -348,21 +338,6 @@ export function DetailPanel({
                 {locale === "en-US" ? "Market" : "市场页"}
               </a>
             ) : null}
-            <button
-              type="button"
-              className={clsx(
-                "panel-action-button",
-                "panel-action-button-secondary",
-                !isPro && "pro-locked",
-              )}
-              title={
-                isPro ? t("detail.history") : `${t("detail.history")} (Pro)`
-              }
-              onClick={() => handleFeatureAccess("history")}
-              disabled={!store.selectedCity}
-            >
-              {isPro ? t("detail.history") : `${t("detail.history")} · Pro`}
-            </button>
           </div>
         </div>
       </div>
diff --git a/frontend/components/dashboard/scan-terminal/city-detail-utils.ts b/frontend/components/dashboard/scan-terminal/city-detail-utils.ts
index 89a389dd..a9cee629 100644
--- a/frontend/components/dashboard/scan-terminal/city-detail-utils.ts
+++ b/frontend/components/dashboard/scan-terminal/city-detail-utils.ts
@@ -47,8 +47,8 @@ export function isFullEnoughForDeepAnalysis(detail?: CityDetail | null) {
     return false;
   }
   return (
-    countDetailModels(detail, detail.local_date) > 1 &&
-    countDetailForecastDays(detail) > 1
+    countDetailModels(detail, detail.local_date) >= 1 &&
+    countDetailForecastDays(detail) >= 1
   );
 }
 
diff --git a/frontend/components/dashboard/scan-terminal/use-ai-pinned-city-workspace.ts b/frontend/components/dashboard/scan-terminal/use-ai-pinned-city-workspace.ts
index 57c8b98e..d13e7a05 100644
--- a/frontend/components/dashboard/scan-terminal/use-ai-pinned-city-workspace.ts
+++ b/frontend/components/dashboard/scan-terminal/use-ai-pinned-city-workspace.ts
@@ -30,6 +30,7 @@ export function useAiPinnedCityWorkspace({
   const aiFullHydrationRef = useRef<Set<string>>(new Set());
   const aiHydrationQueueRef = useRef<string[]>([]);
   const aiHydrationRunningRef = useRef(false);
+  const aiHydrationRetriesRef = useRef<Map<string, number>>(new Map());
 
   const runAiHydrationQueue = useCallback(async () => {
     if (aiHydrationRunningRef.current) return;
@@ -47,10 +48,22 @@ export function useAiPinnedCityWorkspace({
             "full",
           );
           if (!isFullEnoughForDeepAnalysis(detail)) {
-            aiFullHydrationRef.current.delete(key);
+            const retries = aiHydrationRetriesRef.current.get(key) || 0;
+            if (retries >= 3) {
+              aiFullHydrationRef.current.delete(key);
+              aiHydrationRetriesRef.current.delete(key);
+            } else {
+              aiHydrationRetriesRef.current.set(key, retries + 1);
+            }
           }
         } catch {
-          aiFullHydrationRef.current.delete(key);
+          const retries = aiHydrationRetriesRef.current.get(key) || 0;
+          if (retries >= 3) {
+            aiFullHydrationRef.current.delete(key);
+            aiHydrationRetriesRef.current.delete(key);
+          } else {
+            aiHydrationRetriesRef.current.set(key, retries + 1);
+          }
         }
       }
     } finally {
@@ -132,6 +145,8 @@ export function useAiPinnedCityWorkspace({
     aiPinnedCities.forEach((item) => {
       const key = normalizeCityKey(item.cityName);
       if (!key || aiFullHydrationRef.current.has(key)) return;
+      const retries = aiHydrationRetriesRef.current.get(key) || 0;
+      if (retries >= 3) return;
       const detail = findDetailForCity(store.cityDetailsByName, item.cityName);
       const needsFullHydration = !isFullEnoughForDeepAnalysis(detail);
       if (!needsFullHydration) return;
diff --git a/frontend/lib/chart-utils.ts b/frontend/lib/chart-utils.ts
index 3bdebe6f..a5732476 100644
--- a/frontend/lib/chart-utils.ts
+++ b/frontend/lib/chart-utils.ts
@@ -376,10 +376,18 @@ export function getTemperatureChartData(
       value: Number(rawTemps[index]),
     }))
     .filter((entry) => entry.tail !== "");
-  const times = validEntries.map((entry) => entry.tail);
-  const temps = validEntries.map((entry) =>
-    Number.isFinite(entry.value) ? entry.value : null,
-  );
+  const dataByHour = new Map<string, number | null>();
+  validEntries.forEach((entry) => {
+    dataByHour.set(entry.tail, Number.isFinite(entry.value) ? entry.value : null);
+  });
+  const times: string[] = [];
+  const temps: Array<number | null> = [];
+  for (let h = 0; h < 24; h++) {
+    const hh = String(h).padStart(2, "0");
+    const key = `${hh}:00`;
+    times.push(key);
+    temps.push(dataByHour.has(key) ? dataByHour.get(key)! : null);
+  }
   const suppressAnkaraMgmObservation = isTurkishMgmCity(detail);
 
   if (!times.length) return null;
diff --git a/src/data_collection/nws_open_meteo_sources.py b/src/data_collection/nws_open_meteo_sources.py
index f32ef617..f2f5e4d9 100644
--- a/src/data_collection/nws_open_meteo_sources.py
+++ b/src/data_collection/nws_open_meteo_sources.py
@@ -386,6 +386,7 @@ class NwsOpenMeteoSourceMixin:
                 "daily": "temperature_2m_max,apparent_temperature_max,sunrise,sunset,sunshine_duration",
                 "timezone": "auto",
                 "forecast_days": forecast_days,
+                "past_days": 1,
             }
 
             # 显式指定单位，防止 API 默认行为漂移