Prospect Heights Weather Forecast
- 41
- 47
Rain Showers Likely
- 60
- 68
Rain Showers
- 37
- 61
Partly Sunny
- 48
- 61
Partly Sunny
- 46
- 70
Chance Rain Showers
- 45
- 70
Rain Showers Likely
Today 5 Mar Northern Cook
Cloudy. A chance of Showers late in the morning. A slight chance of drizzle in the late morning and early afternoon. Widespread dense fog late in the morning. Areas of dense fog in the afternoon. Highs in the lower 40s Inland, but only in the upper 30s near the lake. Near steady temperature in the lower 40s. North Winds 5 to 10 Mph. Chance of precipitation 30 percent.
Tonight 5 Mar Northern Cook
Mostly cloudy. Areas of dense fog in the Evening, then widespread dense fog after midnight. Near steady temperature in the lower 40s. East Winds around 5 Mph.
Prospect Heights Temperature Statistics
March Temperature
Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)
Lowest 1 March, 2026
22.6 °FAverage March
31.4 °FHighest 2 March, 2026
39.9 °F
Climate (2021–Present)
Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)
Average Low 2021–2026
44.1 °FAverage 2021–2026
52.9 °FAverage High 2021–2026
61.6 °F