National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Overcast

72°F

22°C

Humidity 79%
Wind Speed SE 8 G 12 mph
Barometer 29.93 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 15 Oct 1:35 pm CDT
Extended Forecast for

Seneca IL

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Steady temperature around 64. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 11pm. Cloudy, with a low around 48. Breezy, with a southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely then
    Slight Chance
    Showers and
    Breezy

  • Friday

    Friday: A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 54. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 54 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 35. North wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, sunny, with a high near 58. North northwest wind around 5 mph becoming calm.

    High: 58 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Steady temperature around 64. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers likely, mainly before 11pm. Cloudy, with a low around 48. Breezy, with a southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 54. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 35. North wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday
Areas of frost before 9am. Otherwise, sunny, with a high near 58. North northwest wind around 5 mph becoming calm.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Seneca IL
 41.3°N 88.62°W
Last Update:
1:21 pm CDT Oct 15, 2026
Forecast Valid:
1pm CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation