Joliet Weather Forecast
- 62
- 77
Mostly Cloudy
- 68
- 84
Rain Showers Likely
- 69
- 86
Thunderstorms Likely
- 67
- 82
Chance Thunderstorms
- 71
- 87
Chance Thunderstorms
- 73
- 92
Slight Chance Thunderstorms
Today 17 Jul Northern Will
Mostly cloudy. Highs in the upper 70s. North Winds around 10 Mph, becoming northeast in the afternoon.
Tonight 17 Jul Northern Will
Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.
Joliet Temperature Statistics
July Temperature
Joliet Regional Airport (5 miles)
Lowest 14 July, 2025
61 °FAverage July
78.1 °FHighest 5 July, 2025
94.3 °F
Climate (2020–Present)
Joliet Regional Airport (5 miles)
Average Low 2020–2025
43.4 °FAverage 2020–2025
53.5 °FAverage High 2020–2025
63 °F