5-day weather forecast for Allen, Texas
Today
48°
81°
Mostly sunny
Wednesday
49°
84°
Sunny
Thursday
58°
84°
Mostly sunny
Friday
65°
84°
Slight Chance Thunderstorms
Saturday
61°
81°
Chance Thunderstorms
Click on a forecast to see the forecast trend for that day
Weather forecast accuracy for McKinney, Texas
| MyForecast | 79.89% |
| The Weather Channel | 79.74% |
| Intellicast | 78.42% |
| Accuweather | 78.19% |
| National Weather Service | 77.24% |
| NWS Digital Forecast | 77.22% |
| National Weather Service | 74.83% |
| NWS Digital Forecast | 74.43% |
| Intellicast | 74.35% |
| Accuweather | 73.45% |
| MyForecast | 73.25% |
| The Weather Channel | 73.24% |
ForecastAdvisor Fact
65.2% of National Weather Service's high temperature forecasts for McKinney were within 3 degrees of actual temperatures last year.