5-day weather forecast for Grayslake, Illinois
Today
69°
87°
Thunderstorms Likely
Tuesday
67°
82°
Thunderstorms Likely
Wednesday
64°
73°
Thunderstorms Likely
Thursday
57°
62°
Chance Rain
Showers
Showers
Friday
47°
59°
Mostly 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 | 4.1° | 6.0° |
| Average change in low temperature day-to-day | 7.0° | 7.0° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 56% | 54% |
| Chance of precip day after a dry day | 24% | 19% |
Weather forecast accuracy for Wheeling, Illinois
| The Weather Channel | 70.29% |
| Intellicast | 70.29% |
| National Weather Service | 67.65% |
| Weather Underground | 67.35% |
| NWS Digital Forecast | 65.00% |
| AccuWeather | 64.12% |
| CustomWeather | 62.94% |
| World Weather Online | 58.82% |
| Persistence | 48.72% |
| 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
On average, Intellicast's low temperature forecasts for Wheeling were off by 3.39 degrees last year.