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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Elizabeth ILSimilar City Names

Flood Watch September 20, 03:09am until September 20, 01:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 20, 03:09am until September 20, 01:00pm

    NOW until 1:00pm Sun

    Flood Watch

  • Overnight

    Low: 61 °F

    Heavy Rain
    and Patchy
    Fog

  • Sunday

    Sunday: Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and 3pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 67. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 67 °F

    Heavy Rain
    and Patchy
    Fog then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly between 1am and 2am. Mostly cloudy, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers before 7am, then a chance of showers after 9am. Mostly cloudy, with a high near 63. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 63 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Overnight
Occasional showers and thunderstorms. Some of the storms could produce heavy rainfall. Patchy fog. Low around 61. Northeast wind around 5 mph. Chance of precipitation is 90%.
Sunday
Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and 3pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 67. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers, mainly between 1am and 2am. Mostly cloudy, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A chance of showers before 7am, then a chance of showers after 9am. Mostly cloudy, with a high near 63. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Monday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 50.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Elizabeth ILSimilar City Names
 42.31°N 90.23°W (Elev. 699 ft)
Last Update:
1:51 am CDT Sep 20, 2026
Forecast Valid:
3am CDT Sep 20, 2026-6pm CDT Sep 26, 2026
 
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Additional Resources

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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