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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Light Rain

75°F

24°C

Humidity 90%
Wind Speed N 7 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Last update 13 Jul 5:54 pm CDT
Extended Forecast for

2 Miles WNW Decatur IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 8pm. Patchy fog after 3am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 68. Southeast wind around 6 mph becoming calm in the evening.

    Low: 68 °F

    Chance
    T-storms then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming east around 5 mph.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70. Light and variable wind.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. South wind 3 to 6 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 72. South wind 3 to 6 mph.

    Low: 72 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Southwest wind 6 to 9 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southwest wind 6 to 8 mph.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 8pm. Patchy fog after 3am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 68. Southeast wind around 6 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming east around 5 mph.
Monday Night
Partly cloudy, with a low around 70. Light and variable wind.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. South wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 72. South wind 3 to 6 mph.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Southwest wind 6 to 9 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southwest wind 6 to 8 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 85.
Friday Night
Mostly cloudy, with a low around 69.
Saturday
A chance of showers. Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Decatur IL
 39.86°N 88.97°W (Elev. 676 ft)
Last Update:
6:12 pm CDT Jul 13, 2025
Forecast Valid:
6pm CDT Jul 13, 2025-6pm CDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation