5-day weather forecast for Grayslake, Illinois
Today
58°
78°
Chance Thunderstorms
Saturday
58°
80°
Chance Thunderstorms
Sunday
66°
93°
Slight Chance Thunderstorms
Monday
73°
86°
Thunderstorms likely
Tuesday
63°
77°
Partly sunny
Click on a forecast to see the forecast trend for that day
Weather changeability for Wheeling, Illinois
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 7.5° | 6.0° |
| Average change in low temperature day-to-day | 8.3° | 7.0° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 50% | 54% |
| Chance of precip day after a dry day | 13% | 19% |
Weather forecast accuracy for Wheeling, Illinois
| The Weather Channel | 66.67% |
| Intellicast | 66.67% |
| National Weather Service | 65.23% |
| AccuWeather | 62.93% |
| World Weather Online | 60.92% |
| NWS Digital Forecast | 59.26% |
| CustomWeather | 58.91% |
| Weather Underground | 57.47% |
| Persistence | 46.11% |
| The Weather Channel | 68.68% |
| Intellicast | 68.63% |
| AccuWeather | 65.93% |
| National Weather Service | 65.49% |
| CustomWeather | 62.50% |
| NWS Digital Forecast | 61.26% |
| Persistence | 47.27% |
ForecastAdvisor Fact
58.3% of NWS Digital Forecast's low temperature forecasts for Wheeling were within 3 degrees of actual temperatures last year.