Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Light Snow Fog/Mist

33°F

1°C

Humidity 96%
Wind Speed SE 20 G 36 mph
Barometer 29.94 in (1014.6 mb)
Dewpoint 32°F (0°C)
Visibility 3.00 mi
Wind Chill21°F (-6°C)
Last update 29 Nov 5:53 pm CST
Extended Forecast for

Janesville IL

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

    NOW until 6:00am Sun

    Winter Storm Warning

  • Tonight

    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%. New snow accumulation of 1 to 3 inches possible.

    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. Calm wind becoming south around 5 mph after midnight.

    Low: 13 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

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%. Total nighttime 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%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Partly sunny, with a high near 24. North northwest wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 13. Calm wind becoming south around 5 mph after midnight.
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.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 34.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Janesville IL
 39.37°N 88.25°W (Elev. 669 ft)
4:57 pm CST Nov 29, 2025
6pm CST Nov 29, 2025-6pm CST Dec 6, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database