Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Hazardous Weather Conditions

Current conditions at

Albertus Airport (KFEP)

Lat: 42.25°NLon: 89.58°WElev: 837ft.

Fair

65°F

18°C

Humidity 95%
Wind Speed SW 5 mph
Barometer 30.03 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 18 Aug 6:15 am CDT
Extended Forecast for

Freeport IL

  • Today

    Today: A slight chance of showers between 9am and 11am, then a chance of showers and thunderstorms after 11am.  Mostly cloudy, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 10pm.  Mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy, then gradual clearing during the afternoon, with a high near 78. Calm wind becoming northeast around 5 mph.

    High: 78 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 1pm.  Mostly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am.  Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers between 9am and 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, then gradual clearing during the afternoon, with a high near 78. Calm wind becoming northeast around 5 mph.
Wednesday Night
Partly cloudy, with a low around 55. Calm wind.
Thursday
Sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 59.
Friday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 79.
Friday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Freeport IL
 42.3°N 89.62°W (Elev. 761 ft)
5:31 am CDT Aug 18, 2026
6am CDT Aug 18, 2026-6pm CDT Aug 24, 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