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

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

20°C

68°F

Humidity 63%
Wind Speed SE 11 km/h
Barometer 1013.5 mb (29.94 in)
Dewpoint 13°C (55°F)
Visibility 16 km
Last update 23 May 8:53 am CDT
Extended Forecast for

Sullivan IL

  • Today

    Today: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 26. East southeast wind 11 to 13 km/h becoming south in the afternoon. Chance of precipitation is 20%.

    High: 26 °C

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 17. South southeast wind 8 to 10 km/h.

    Low: 17 °C

    Mostly Clear

  • Friday

    Friday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 28. South southeast wind 13 to 23 km/h, with gusts as high as 37 km/h. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.

    High: 28 °C

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 16. South southwest wind 13 to 18 km/h becoming west northwest after midnight. Winds could gust as high as 32 km/h.

    Low: 16 °C

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 26. North northwest wind 8 to 13 km/h, with gusts as high as 24 km/h.

    High: 26 °C

    Sunny

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 17. East wind 5 to 13 km/h, with gusts as high as 24 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.

    Low: 17 °C

    Partly Cloudy
    then Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 27. South southwest wind 16 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 cm possible.

    High: 27 °C

    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 14. Chance of precipitation is 60%.

    Low: 14 °C

    T-storms
    Likely

  • Memorial Day

    Memorial Day: A 50 percent chance of showers. Mostly sunny, with a high near 22.

    High: 22 °C

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 26. East southeast wind 11 to 13 km/h becoming south in the afternoon. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 17. South southeast wind 8 to 10 km/h.
Friday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 28. South southeast wind 13 to 23 km/h, with gusts as high as 37 km/h. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.
Friday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 16. South southwest wind 13 to 18 km/h becoming west northwest after midnight. Winds could gust as high as 32 km/h.
Saturday
Sunny, with a high near 26. North northwest wind 8 to 13 km/h, with gusts as high as 24 km/h.
Saturday Night
Showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 17. East wind 5 to 13 km/h, with gusts as high as 24 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.
Sunday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 27. South southwest wind 16 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 cm possible.
Sunday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 14. Chance of precipitation is 60%.
Memorial Day
A 50 percent chance of showers. Mostly sunny, with a high near 22.
Monday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 13.
Tuesday
A chance of showers. Mostly sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 13.
Wednesday
Sunny, with a high near 23.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IL
 39.61°N 88.61°W (Elev. 669 m)
Last Update:
9:41 am CDT May 23, 2024
Forecast Valid:
9am CDT May 23, 2024-6pm CDT May 29, 2024
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation