diff --git a/backend/src/app.js b/backend/src/app.js
index 5dbb1a8..9c18440 100644
--- a/backend/src/app.js
+++ b/backend/src/app.js
@@ -137,3 +137,14 @@ app.listen(PORT, '0.0.0.0', () => {
   console.log(`TurfTracker API server running on port ${PORT}`);
   console.log(`Environment: ${process.env.NODE_ENV || 'development'}`);
 });
+// Disable etags and set no-store by default to avoid stale cached API responses
+app.set('etag', false);
+
+app.use((req, res, next) => {
+  // Allow icon proxy to control its own caching
+  if (req.path && req.path.startsWith('/api/weather/icon')) return next();
+  res.setHeader('Cache-Control', 'no-store');
+  res.setHeader('Pragma', 'no-cache');
+  res.setHeader('Expires', '0');
+  next();
+});
diff --git a/frontend/src/App.js b/frontend/src/App.js
index e3df9ae..4f64dac 100644
--- a/frontend/src/App.js
+++ b/frontend/src/App.js
@@ -48,14 +48,18 @@ const queryClient = new QueryClient({
   defaultOptions: {
     queries: {
       retry: (failureCount, error) => {
-        // Don't retry on 401 (unauthorized) or 403 (forbidden)
         if (error?.response?.status === 401 || error?.response?.status === 403) {
           return false;
         }
         return failureCount < 2;
       },
-      staleTime: 5 * 60 * 1000, // 5 minutes
-      cacheTime: 10 * 60 * 1000, // 10 minutes
+      // Always consider data stale so we refetch on mount/focus
+      staleTime: 0,
+      // Keep cache tiny and refetch aggressively
+      cacheTime: 60 * 1000,
+      refetchOnWindowFocus: true,
+      refetchOnReconnect: true,
+      refetchOnMount: 'always',
     },
   },
 });
diff --git a/frontend/src/services/api.js b/frontend/src/services/api.js
index 4ce4f84..5ab9cf2 100644
--- a/frontend/src/services/api.js
+++ b/frontend/src/services/api.js
@@ -10,6 +10,9 @@ export const apiClient = axios.create({
   timeout: 10000,
   headers: {
     'Content-Type': 'application/json',
+    'Cache-Control': 'no-cache',
+    'Pragma': 'no-cache',
+    'Expires': '0',
   },
 });
 
@@ -33,6 +36,15 @@ apiClient.interceptors.request.use(
     if (token && token !== 'undefined' && token !== 'null') {
       config.headers.Authorization = `Bearer ${token}`;
     }
+    // Prevent browser/proxy caching of GET requests by adding a timestamp
+    if ((config.method || 'get').toLowerCase() === 'get') {
+      config.headers['Cache-Control'] = 'no-cache';
+      config.headers['Pragma'] = 'no-cache';
+      config.headers['Expires'] = '0';
+      const params = new URLSearchParams(config.params || {});
+      if (!params.has('_ts')) params.set('_ts', Date.now().toString());
+      config.params = Object.fromEntries(params.entries());
+    }
     return config;
   },
   (error) => {