diff --git a/sec-beidou/src/main/resources/static/js/device-overview-module/weather-forecast.js b/sec-beidou/src/main/resources/static/js/device-overview-module/weather-forecast.js
index e9cf8d2a..20b6d777 100644
--- a/sec-beidou/src/main/resources/static/js/device-overview-module/weather-forecast.js
+++ b/sec-beidou/src/main/resources/static/js/device-overview-module/weather-forecast.js
@@ -1,7 +1,6 @@
 var WeatherForecast = (function() {
     'use strict';
     
-    var weatherApiKey = 'Uxh4IdMuAvhSiBnsf4UUDVGF4e3YAp2B';
     var weatherEnabled = false;
     var weatherData = null;
     var currentForecastIndex = 0;
@@ -81,7 +80,6 @@ var WeatherForecast = (function() {
             contentElement.innerHTML = 
                 '<div class="weather-loading">' +
                 '<i class="layui-icon layui-icon-loading layui-icon-anim-rotate"></i>' +
-                '<p>请确保网络可访问 Windy API 服务</p>' +
                 '<p>正在获取天气预测数据...</p>' +
                 '</div>';
         }
@@ -140,23 +138,19 @@ var WeatherForecast = (function() {
     }
 
     function fetchWeatherData(lat, lon) {
-        var requestBody = {
-            "lat": parseFloat(lat.toFixed(2)),
-            "lon": parseFloat(lon.toFixed(2)),
-            "model": "gfs",
-            "parameters": ["temp", "wind", "precip", "pressure", "rh", "windGust"],
-            "levels": ["surface"],
-            "key": weatherApiKey,
-            "hours": 72
-        };
+        var url = 'https://api.open-meteo.com/v1/forecast?' +
+            'latitude=' + lat.toFixed(4) + 
+            '&longitude=' + lon.toFixed(4) +
+            '&current=temperature_2m,wind_speed_10m,wind_direction_10m,relative_humidity_2m,surface_pressure' +
+            '&hourly=temperature_2m,relative_humidity_2m,wind_speed_10m,wind_direction_10m,precipitation,surface_pressure,wind_gusts_10m' +
+            '&forecast_days=3' +
+            '&timezone=auto';
         
-        fetch('https://api.windy.com/api/point-forecast/v2', {
-            method: 'POST',
+        fetch(url, {
+            method: 'GET',
             headers: {
-                'Content-Type': 'application/json',
                 'Accept': 'application/json'
-            },
-            body: JSON.stringify(requestBody)
+            }
         })
         .then(function(response) {
             if (!response.ok) {
@@ -165,7 +159,7 @@ var WeatherForecast = (function() {
             return response.json();
         })
         .then(function(data) {
-            weatherData = data;
+            weatherData = transformOpenMeteoData(data);
             
             var currentTime = new Date().getTime();
             var closestIndex = 0;
@@ -203,6 +197,40 @@ var WeatherForecast = (function() {
         });
     }
     
+    function transformOpenMeteoData(data) {
+        var transformed = {
+            ts: [],
+            'temp-surface': [],
+            'wind-speed': [],
+            'wind-direction': [],
+            'precipitation': [],
+            'rh-surface': [],
+            'pressure-surface': [],
+            'gust-surface': []
+        };
+        
+        if (!data.hourly || !data.hourly.time) {
+            return transformed;
+        }
+        
+        for (var i = 0; i < data.hourly.time.length; i++) {
+            transformed.ts.push(new Date(data.hourly.time[i]).getTime());
+            
+            transformed['temp-surface'].push(data.hourly.temperature_2m[i]);
+            
+            var windSpeedMs = data.hourly.wind_speed_10m[i] ? data.hourly.wind_speed_10m[i] / 3.6 : null;
+            transformed['wind-speed'].push(windSpeedMs);
+            transformed['wind-direction'].push(data.hourly.wind_direction_10m[i]);
+            transformed['precipitation'].push(data.hourly.precipitation[i]);
+            transformed['rh-surface'].push(data.hourly.relative_humidity_2m[i]);
+            transformed['pressure-surface'].push(data.hourly.surface_pressure[i]);
+            var gustMs = data.hourly.wind_gusts_10m[i] ? data.hourly.wind_gusts_10m[i] / 3.6 : null;
+            transformed['gust-surface'].push(gustMs);
+        }
+        
+        return transformed;
+    }
+    
     function displayCurrentForecast() {
         if (!weatherData || !weatherData.ts || weatherData.ts.length === 0) {
             displayWeatherError('无可用的天气预测数据');
@@ -213,22 +241,22 @@ var WeatherForecast = (function() {
         var forecastHtml = '<div class="weather-forecast-item"><div class="weather-param-grid">';
         
         if (weatherData['temp-surface'] && weatherData['temp-surface'][i] !== null) {
-            var temp = (weatherData['temp-surface'][i] - 273.15).toFixed(1);
+            var temp = weatherData['temp-surface'][i].toFixed(1);
             forecastHtml += createWeatherParam('温度', temp + '°C');
         }
         
-        if (weatherData['wind_u-surface'] && weatherData['wind_v-surface'] && 
-            weatherData['wind_u-surface'][i] !== null && weatherData['wind_v-surface'][i] !== null) {
-            var windU = weatherData['wind_u-surface'][i];
-            var windV = weatherData['wind_v-surface'][i];
-            var windSpeed = Math.sqrt(windU * windU + windV * windV).toFixed(1);
-            var windDir = getWindDirection(windU, windV);
+        if (weatherData['wind-speed'] && weatherData['wind-speed'][i] !== null) {
+            var windSpeed = weatherData['wind-speed'][i].toFixed(1);
             forecastHtml += createWeatherParam('风速', windSpeed + ' m/s');
+        }
+        
+        if (weatherData['wind-direction'] && weatherData['wind-direction'][i] !== null) {
+            var windDir = getWindDirectionFromDegrees(weatherData['wind-direction'][i]);
             forecastHtml += createWeatherParam('风向', windDir);
         }
         
-        if (weatherData['past3hprecip-surface'] && weatherData['past3hprecip-surface'][i] !== null) {
-            var precip = weatherData['past3hprecip-surface'][i].toFixed(1);
+        if (weatherData['precipitation'] && weatherData['precipitation'][i] !== null) {
+            var precip = weatherData['precipitation'][i].toFixed(1);
             forecastHtml += createWeatherParam('降水', precip + ' mm');
         }
         
@@ -238,7 +266,7 @@ var WeatherForecast = (function() {
         }
         
         if (weatherData['pressure-surface'] && weatherData['pressure-surface'][i] !== null) {
-            var pressure = (weatherData['pressure-surface'][i] / 100).toFixed(0);
+            var pressure = weatherData['pressure-surface'][i].toFixed(0);
             forecastHtml += createWeatherParam('气压', pressure + ' hPa');
         }
         
@@ -291,6 +319,14 @@ var WeatherForecast = (function() {
         return directions[index];
     }
     
+    function getWindDirectionFromDegrees(degrees) {
+        if (degrees === null || degrees === undefined) return '无风';
+        
+        var directions = ['北', '东北', '东', '东南', '南', '西南', '西', '西北'];
+        var index = Math.round(degrees / 45) % 8;
+        return directions[index];
+    }
+    
     function isEnabled() {
         return weatherEnabled;
     }
diff --git a/sec-beidou/src/main/resources/templates/page/device_overview.html b/sec-beidou/src/main/resources/templates/page/device_overview.html
index 31714f41..a120d556 100644
--- a/sec-beidou/src/main/resources/templates/page/device_overview.html
+++ b/sec-beidou/src/main/resources/templates/page/device_overview.html
@@ -851,7 +851,7 @@
                 <div id="weatherForecastCard" class="weather-forecast-card" style="display: none;" th:if="${role=='SUPER_ADMIN'}">
                     <div class="weather-card-header">
                         <h3 class="weather-card-title">
-                            Windy 天气预测
+                            Open-Meteo 天气预测
                         </h3>
                         <button class="weather-close-btn" onclick="closeWeatherCard()">×</button>
                     </div>
@@ -948,10 +948,10 @@
                                 </div>
                                 <div class="dropdown-divider"></div>
                                 <div class="dropdown-group" th:if="${role=='SUPER_ADMIN'}">
-                                    <div class="dropdown-group-title">Windy 天气预测</div>
+                                    <div class="dropdown-group-title">Open-Meteo 天气预测</div>
                                     <div class="dropdown-item">
                                         <label class="switch-label">
-                                            <span>启用天气预测（需网络被代理）</span>
+                                            <span>启用天气预测</span>
                                             <input type="checkbox" id="enableWeatherSwitch" onchange="toggleWeatherForecast()">
                                             <span class="switch-slider"></span>
                                         </label>