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

Hazardous Weather Conditions

Current conditions at

Morris Muni-James R Washburn Field Airport (KC09)

Lat: 41.43°NLon: 88.42°WElev: 584ft.

Partly Cloudy

43°F

6°C

Humidity 75%
Wind Speed NW 15 G 24 mph
Barometer 29.86 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 18 Apr 9:35 am CDT
Extended Forecast for

Seneca IL

  • Today

    Today: Partly sunny, with a high near 50. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.

    High: 50 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, mostly clear, with a low around 34. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 54. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 54 °F

    Areas Frost
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.

    Low: 31 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 57 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 50. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Tonight
Areas of frost after 2am. Otherwise, mostly clear, with a low around 34. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 54. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Showers likely. Mostly cloudy, with a low around 61.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 75.
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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:
6:46 am CDT Apr 18, 2026
Forecast Valid:
9am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation