Prospect Heights Weather Forecast
- 67
- 83
Thunderstorms Likely
- 65
- 80
Chance Thunderstorms
- 64
- 80
Partly Sunny
- 67
- 85
Partly Sunny
- 70
- 88
Chance Rain Showers
- 67
- 87
Chance Thunderstorms
Today 4 Jul Northern Cook
Mostly cloudy. A slight chance of Showers and Thunderstorms in the morning. Showers and Thunderstorms likely in the afternoon. Highs in the lower 80s Inland, but only in the upper 70s near the lake. Temperature falling into the mid 70s in the afternoon. Northwest Winds around 5 Mph, becoming east in the afternoon. Chance of precipitation 70 percent.
Tonight 4 Jul Northern Cook
Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Lows in the upper 60s. North Winds around 5 Mph. Chance of precipitation 50 percent.
Prospect Heights Temperature Statistics
July Temperature
Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)
Lowest 1 July, 2026
80.1 °FAverage July
86.8 °FHighest 1 July, 2026
93.9 °F
Climate (2021–2026)
Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)
Average Low 2021–2026
44 °FAverage 2021–2026
52.8 °FAverage High 2021–2026
61.5 °F