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

Heavy Rainfall Continues from the Southwest to the Plains; Severe Thunderstorms in the Southern Plains

Pacific tropical moisture wrapping into a storm will continue a multi-day heavy rainfall event this week that will impact the Southwest into the Plains. Scattered severe thunderstorms capable of mainly severe wind gusts appear possible across portions of the southern Plains this afternoon into tonight. There is also a risk of isolated severe winds gusts and tornadoes in Kansas into Nebraska. Read More >

Hazardous Weather Conditions

Current conditions at

Albertus Airport (KFEP)

Lat: 42.25°NLon: 89.58°WElev: 837ft.

Overcast

64°F

18°C

Humidity 95%
Wind Speed SE 5 mph
Barometer 29.82 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Last update 1 Oct 4:55 am CDT
Extended Forecast for

Shannon IL

Flood Watch October 1, 05:06am until October 2, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch October 1, 05:06am until October 2, 01:00am

    NOW until 1:00am Fri

    Flood Watch

  • Overnight

    Low: 63 °F

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 2pm, then showers likely. High near 69. South wind 5 to 10 mph becoming northwest in the morning. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 69 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 49. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 63. North wind around 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 63. Southwest wind around 5 mph. Chance of precipitation is 90%.
Thursday
Showers and possibly a thunderstorm before 2pm, then showers likely. High near 69. South wind 5 to 10 mph becoming northwest in the morning. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
A 30 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 49. North wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 63. North wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 40.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 64.
Monday Night
Clear, with a low around 42.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shannon IL
 42.15°N 89.74°W (Elev. 928 ft)
Last Update:
4:26 am CDT Oct 1, 2026
Forecast Valid:
5am CDT Oct 1, 2026-6pm CDT Oct 7, 2026
 
Forecast Discussion
 
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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