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

Early Season Heat; Late Season Snow

An early season heat wave will consume a good portion of the Eastern U.S. today through the weekend, including the Northeast, Mid-Atlantic and Ohio Valley. Numerous record high temperatures are likely and heat advisories are in effect for Boston, New York City and Philadelphia. A late season snow will impact the central Rockies and several inches of snow are possible in the Denver metro area. Read More >

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

77°F

25°C

Humidity 69%
Wind Speed S 14 G 25 mph
Barometer 29.60 in (1001.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 May 9:53 am CDT
Extended Forecast for

Arthur IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 88. Breezy, with a south southwest wind around 24 mph, with gusts as high as 39 mph.

    Breezy.
    Chance
    T-storms then
    Mostly Sunny

    High: 88 °F

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 11pm. Increasing clouds, with a low around 63. South southwest wind 10 to 18 mph becoming north northeast after midnight. Winds could gust as high as 33 mph.

    Chance
    T-storms

    Low: 63 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 80. East wind 7 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Showers

    High: 80 °F

  • Saturday
    Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 54. Northeast wind 9 to 11 mph becoming west southwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    T-storms

    Low: 54 °F

  • Sunday

    Sunday: Partly sunny, with a high near 66. North northwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Partly Sunny

    High: 66 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 48. North northeast wind 7 to 10 mph, with gusts as high as 18 mph.

    Decreasing
    Clouds

    Low: 48 °F

  • Monday

    Monday: Mostly sunny, with a high near 68. East northeast wind 8 to 14 mph, with gusts as high as 20 mph.

    Mostly Sunny

    High: 68 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52.

    Mostly Cloudy
    then Chance
    Showers

    Low: 52 °F

  • Tuesday

    Tuesday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

    Showers
    Likely

    High: 71 °F

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 88. Breezy, with a south southwest wind around 24 mph, with gusts as high as 39 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 11pm. Increasing clouds, with a low around 63. South southwest wind 10 to 18 mph becoming north northeast after midnight. Winds could gust as high as 33 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 80. East wind 7 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 54. Northeast wind 9 to 11 mph becoming west southwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday
Partly sunny, with a high near 66. North northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 48. North northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 68. East northeast wind 8 to 14 mph, with gusts as high as 20 mph.
Monday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52.
Tuesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Tuesday Night
Showers. Low around 58. Chance of precipitation is 80%.
Wednesday
Showers likely. Mostly cloudy, with a high near 72.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 54.
Thursday
A chance of showers. Partly sunny, with a high near 70.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Arthur IL
 39.71°N 88.46°W (Elev. 663 ft)
Last Update:
10:11 am CDT May 20, 2022
Forecast Valid:
10am CDT May 20, 2022-6pm CDT May 26, 2022
 
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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