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

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Snow Freezing Fog

30°F

-1°C

Humidity 92%
Wind Speed SE 15 mph
Barometer 30.01 in (1017.1 mb)
Dewpoint 28°F (-2°C)
Visibility 0.50 mi
Wind Chill19°F (-7°C)
Last update 29 Nov 2:53 pm CST
Extended Forecast for

Janesville IL

Winter Storm Warning November 29, 03:50pm until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning November 29, 03:50pm until November 30, 06:00am

    NOW until 6:00am Sun

    Winter Storm Warning

  • This Afternoon

    High: 34 °F

    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Rain and snow before 10pm, then a chance of rain between 10pm and 1am. Low around 24. Breezy, with a south southeast wind 18 to 22 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Breezy.
    Rain/Snow
    then Slight
    Chance Rain

  • Sunday

    Sunday: Cloudy, with a high near 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 mph.

    High: 27 °F

    Cloudy and
    Breezy then
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 17 mph.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of snow after noon. Cloudy, with a high near 30. Light east wind.

    High: 30 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 20. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 80%.

    Low: 20 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 24. North northwest wind 3 to 6 mph.

    High: 24 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Snow before 5pm, then snow, possibly mixed with rain. Some thunder is also possible. High near 34. Breezy, with a southeast wind around 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Rain and snow before 10pm, then a chance of rain between 10pm and 1am. Low around 24. Breezy, with a south southeast wind 18 to 22 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday
Cloudy, with a high near 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 mph.
Sunday Night
Mostly cloudy, with a low around 18. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Monday
A 30 percent chance of snow after noon. Cloudy, with a high near 30. Light east wind.
Monday Night
Snow, mainly before midnight. Low around 20. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 80%.
Tuesday
Partly sunny, with a high near 24. North northwest wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Partly sunny, with a high near 24.
Thursday Night
Mostly cloudy, with a low around 10.
Friday
Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Janesville IL
 39.37°N 88.25°W (Elev. 669 ft)
Last Update:
3:31 pm CST Nov 29, 2025
Forecast Valid:
3pm CST Nov 29, 2025-6pm CST Dec 5, 2025
 
Forecast Discussion
 
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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