5-day weather forecast for Lemont, Illinois
Today
68°
85°
Chance Thunderstorms
Monday
71°
88°
Chance Thunderstorms
Tuesday
67°
84°
Chance Thunderstorms
Wednesday
61°
81°
Mostly sunny
Thursday
61°
83°
Mostly sunny
Click on a forecast to see the forecast trend for that day
Weather forecast accuracy for Chicago, Illinois
| National Weather Service | 71.37% |
| The Weather Channel | 67.34% |
| MyForecast | 67.07% |
| Accuweather | 66.53% |
| NWS Digital Forecast | 66.43% |
| Intellicast | 46.51% |
| The Weather Channel | 72.07% |
| Intellicast | 71.80% |
| National Weather Service | 70.94% |
| NWS Digital Forecast | 69.99% |
| MyForecast | 69.60% |
| Accuweather | 67.94% |
ForecastAdvisor Fact
It rained 50% of the time in Chicago last year when National Weather Service's icon forecasts called for precipitation, and 9% of the time when they did not.