Midewin National Tallgrass Prairie Weather Forecast
- 70
- 89
Partly Sunny
- 75
- 95
Mostly Sunny
- 72
- 95
Chance Thunderstorms
- 71
- 90
Chance Thunderstorms
- 70
- 89
Chance Thunderstorms
- 71
- 92
Mostly Sunny
Today 22 Jul Southern Will
Partly cloudy. Very warm and more humid with Highs in the upper 80s. Southeast Winds around 10 Mph.
Tonight 22 Jul Southern Will
Increasing Clouds. Lows around 70. Southeast Winds 5 to 10 Mph.
Midewin National Tallgrass Prairie Temperature Statistics
July Temperature
Joliet Regional Airport (11.2 miles)
Lowest 18 July, 2025
59.9 °FAverage July
77.6 °FHighest 5 July, 2025
94.3 °F
Climate (2020–Present)
Joliet Regional Airport (11.2 miles)
Average Low 2020–2025
43.4 °FAverage 2020–2025
53.5 °FAverage High 2020–2025
63 °F