Mount Prospect Weather Forecast
- 65
- 81
Chance Thunderstorms
- 61
- 77
Partly Sunny
- 63
- 78
Mostly Sunny
- 65
- 79
Chance Rain Showers
- 62
- 79
Chance Rain Showers
- 61
- 77
Partly Sunny
Today 18 Aug Northern Cook
Mostly cloudy. A slight chance of Thunderstorms early in the afternoon. A chance of Showers in the afternoon. A chance of Thunderstorms late. Highs around 80. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation 50 percent.
Tonight 18 Aug Northern Cook
Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. West Winds 5 to 10 Mph. Chance of precipitation 60 percent.
Mount Prospect Temperature Statistics
August Temperature
Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)
Lowest 3 August, 2026
61.6 °FAverage August
74.6 °FHighest 7 August, 2026
87.7 °F
Climate (2021–2026)
Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)
Average Low 2021–2026
44 °FAverage 2021–2026
52.9 °FAverage High 2021–2026
61.6 °F