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Deep Moisture and Active Pattern Across Much of the U.S.

An upper level low pressure system in the west may produce strong to isolated strong thunderstorms, and locally heavy rain across portions of the Intermountain West. A cold front across the central U.S. will produce widely scattered severe thunderstorms. Heavy rain; and high surf, rip currents, and coastal flooding will overspread the Gulf Coast as subtropical system Alberto moves north. Read More >

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

70°F

21°C

Humidity 93%
Wind Speed NE 3 mph
Barometer 29.82 in (1009.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 25 May 8:54 pm CDT
Extended Forecast for

Decatur IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 11pm.  Mostly cloudy, with a low around 69. South wind 5 to 10 mph.

    Chance
    Showers then
    Slight Chance
    T-storms

    Low: 69 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 89. West southwest wind 3 to 7 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 69. West wind around 5 mph becoming light and variable  in the evening.

    Partly Cloudy

    Low: 69 °F

  • Sunday

    Sunday: Sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the morning.

    Sunny

    High: 92 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 69. Southeast wind around 5 mph becoming calm  in the evening.

    Mostly Clear

    Low: 69 °F

  • Memorial
    Day

    Memorial Day: Sunny, with a high near 92. Calm wind becoming east around 6 mph in the afternoon.

    Sunny

    High: 92 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 70. East wind 3 to 5 mph.

    Mostly Clear

    Low: 70 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    Mostly Sunny

    High: 90 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 69.

    Mostly Cloudy

    Low: 69 °F

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 69. South wind 5 to 10 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. West southwest wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 69. West wind around 5 mph becoming light and variable in the evening.
Sunday
Sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.
Memorial Day
Sunny, with a high near 92. Calm wind becoming east around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 70. East wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Mostly cloudy, with a low around 69.
Wednesday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 91.
Click Map For Forecast
Point Forecast:
Decatur IL
 39.86°N 88.94°W (Elev. 682 ft)
7:54 pm CDT May 25, 2018
9pm CDT May 25, 2018-6pm CDT Jun 1, 2018
 
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