Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

A Few Clouds

75°F

24°C

Humidity 90%
Wind Speed SE 8 mph
Barometer 30.08 in (1018.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 14 Aug 11:54 pm CDT
Extended Forecast for

Ohlman IL

Heat Advisory August 15, 12:21am until August 16, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 15, 12:21am until August 16, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Overnight

    Low: 74 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly before 11am.  Mostly cloudy, with a high near 90. Heat index values as high as 103. North wind 5 to 8 mph becoming south in the morning.

    High: 90 °F

    Chance
    T-storms then
    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 74. Light southwest wind.

    Low: 74 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 90. Heat index values as high as 103. Northwest wind 5 to 8 mph.

    High: 90 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am.  Mostly cloudy, with a low around 69. North wind 3 to 6 mph.  Chance of precipitation is 40%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 74. Southeast wind around 7 mph.
Saturday
A 50 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, with a high near 90. Heat index values as high as 103. North wind 5 to 8 mph becoming south in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. Light southwest wind.
Sunday
Partly sunny, with a high near 90. Heat index values as high as 103. Northwest wind 5 to 8 mph.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 69. North wind 3 to 6 mph. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 63.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Ohlman IL
 39.34°N 89.23°W (Elev. 682 ft)
10:31 pm CDT Aug 14, 2026
12am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
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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