diff --git a/server/index.production.ts b/server/index.production.ts
index 0a20be1..2549200 100644
--- a/server/index.production.ts
+++ b/server/index.production.ts
@@ -48,6 +48,12 @@ async function registerProductionRoutes(app: Express): Promise<void> {
   console.log('🔄 Running automatic production migrations...');
   await runProductionMigrations();
   
+  // Initialize weather system for production
+  console.log('🌤️ [PRODUCTION] Initializing weather system...');
+  const { initializeWeatherConfig } = await import('./weatherAutoConfig.js');
+  await initializeWeatherConfig();
+  console.log('✅ [PRODUCTION] Weather system initialized');
+  
   // Register ALL API routes (same as development)
   await registerRoutes(app);
   console.log('✅ All routes registered successfully for production');
diff --git a/server/index.ts b/server/index.ts
index 3625700..732238b 100644
--- a/server/index.ts
+++ b/server/index.ts
@@ -2,11 +2,11 @@ import express, { type Request, Response, NextFunction } from "express";
 import { registerRoutes } from "./routes.js";
 import { setupVite, serveStatic } from "./vite.js";
 
-// Initialize simple weather system
-console.log('🌤️ [STARTUP] Initializing simple weather system...');
-const { default: simpleWeather } = await import('./simpleWeather.js');
-await simpleWeather.init();
-console.log('✅ [STARTUP] Simple weather initialized');
+// Initialize weather system
+console.log('🌤️ [STARTUP] Initializing weather system...');
+const { initializeWeatherConfig } = await import('./weatherAutoConfig.js');
+await initializeWeatherConfig();
+console.log('✅ [STARTUP] Weather system initialized');
 
 const app = express();
 
diff --git a/server/routes.ts b/server/routes.ts
index 5472366..3330563 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -2849,11 +2849,6 @@ RÉSUMÉ DU SCAN
 
   app.get('/api/weather/current', isAuthenticated, async (req: any, res) => {
     try {
-      const user = await storage.getUserWithGroups(req.user.claims ? req.user.claims.sub : req.user.id);
-      if (!user || user.role !== 'admin') {
-        return res.status(403).json({ message: "Access denied - Admin only" });
-      }
-
       const settings = await storage.getWeatherSettings();
       
       if (!settings || !settings.isActive) {
diff --git a/server/simpleWeather.js b/server/simpleWeather.js
deleted file mode 100644
index 9b2ffc8..0000000
--- a/server/simpleWeather.js
+++ /dev/null
@@ -1,39 +0,0 @@
-// Simple weather service for development
-const weatherCache = {
-  today: {
-    date: '2025-08-11',
-    location: 'Nancy, France',
-    tempMax: '30.9',
-    tempMin: '13.9',
-    icon: 'clear-day',
-    conditions: 'Clear',
-    isCurrentYear: true
-  },
-  previousYear: {
-    date: '2024-08-11', 
-    location: 'Nancy, France',
-    tempMax: '30.9',
-    tempMin: '15.8',
-    icon: 'clear-day',
-    conditions: 'Clear',
-    isCurrentYear: false
-  },
-  lastFetch: new Date().toISOString()
-};
-
-const simpleWeather = {
-  async init() {
-    console.log('🌤️ [UPDATE] Fetching fresh weather data...');
-    console.log('🌤️ [FETCH] Calling: Nancy, France for 2025-08-11');
-    console.log('🌤️ [FETCH] Calling: Nancy, France for 2024-08-11');
-    console.log('✅ [UPDATE] Today data cached');
-    console.log('✅ [UPDATE] Last year data cached');
-    console.log('✅ [UPDATE] Weather cache updated at ' + new Date().toISOString());
-  },
-
-  getData() {
-    return weatherCache;
-  }
-};
-
-export default simpleWeather;
\ No newline at end of file
diff --git a/server/weatherAutoConfig.ts b/server/weatherAutoConfig.ts
new file mode 100644
index 0000000..837471e
--- /dev/null
+++ b/server/weatherAutoConfig.ts
@@ -0,0 +1,64 @@
+/**
+ * Auto-configuration du système météo pour la production
+ * Configure automatiquement les paramètres météo avec la clé API des variables d'environnement
+ */
+
+import { storage } from "./storage.js";
+import { weatherService } from "./weatherService.js";
+
+export async function initializeWeatherConfig() {
+  try {
+    console.log('🌤️ [AUTO-CONFIG] Initializing weather configuration...');
+    
+    // Vérifier si la configuration météo existe déjà
+    const existingSettings = await storage.getWeatherSettings();
+    
+    if (existingSettings && existingSettings.isActive) {
+      console.log('✅ [AUTO-CONFIG] Weather settings already configured and active');
+      return;
+    }
+    
+    // Récupérer la clé API depuis les variables d'environnement
+    const apiKey = process.env.VISUAL_CROSSING_API_KEY;
+    
+    if (!apiKey) {
+      console.log('⚠️ [AUTO-CONFIG] VISUAL_CROSSING_API_KEY not found in environment variables');
+      return;
+    }
+    
+    // Configuration par défaut
+    const defaultConfig = {
+      apiKey: apiKey,
+      location: "Nancy, France",
+      isActive: true
+    };
+    
+    console.log('🌤️ [AUTO-CONFIG] Testing API connection...');
+    
+    // Tester la connexion API avant de sauvegarder
+    const testResult = await weatherService.testApiConnection(defaultConfig.apiKey, defaultConfig.location);
+    
+    if (!testResult.success) {
+      console.error('❌ [AUTO-CONFIG] API test failed:', testResult.message);
+      return;
+    }
+    
+    console.log('✅ [AUTO-CONFIG] API test successful');
+    
+    // Créer ou mettre à jour la configuration
+    if (existingSettings) {
+      // Mettre à jour la configuration existante
+      await storage.updateWeatherSettings(existingSettings.id, defaultConfig);
+      console.log('🔄 [AUTO-CONFIG] Weather settings updated');
+    } else {
+      // Créer une nouvelle configuration
+      await storage.createWeatherSettings(defaultConfig);
+      console.log('🆕 [AUTO-CONFIG] Weather settings created');
+    }
+    
+    console.log('✅ [AUTO-CONFIG] Weather system successfully configured');
+    
+  } catch (error) {
+    console.error('❌ [AUTO-CONFIG] Failed to initialize weather config:', error);
+  }
+}
\ No newline at end of file