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September 2025 Climate Summary

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

67°F

19°C

Humidity	62%
Wind Speed	S 5 mph
Barometer	30.06 in
Dewpoint	53°F (12°C)
Visibility	10.00 mi
Last update	5 Oct 10:55 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles WNW Blackstone IL

Tonight
Low: 64 °F
Mostly Clear
Monday
High: 86 °F
Mostly Sunny
then Chance
T-storms
Monday Night
Low: 59 °F
Showers
Tuesday
High: 68 °F
Chance
Showers
Tuesday Night
Low: 43 °F
Mostly Clear
Wednesday
High: 70 °F
Sunny
Wednesday Night
Low: 41 °F
Clear
Thursday
High: 69 °F
Sunny
Thursday Night
Low: 44 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 64. South wind 5 to 10 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 86. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Monday Night

A chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 4am, then showers after 4am. Low around 59. South southwest wind around 5 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

A 30 percent chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 68. North wind around 10 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly clear, with a low around 43. North wind 5 to 10 mph.

Wednesday

Sunny, with a high near 70.

Wednesday Night

Clear, with a low around 41.

Thursday

Sunny, with a high near 69.

Thursday Night

Mostly clear, with a low around 44.

Friday

Mostly sunny, with a high near 72.