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

Areas of Heavy to Excessive Rainfall and Hot Temperatures This Week

Heavy to excessive rainfall could bring areas of flooding at times Monday through Thursday across parts of the central Plains into the Midwest as well as southern Arizona and New Mexico. Hot temperatures and high humidity will continue across much of east Texas into the lower and mid-Mississippi Valley through at least midweek. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

64°F

18°C

Humidity 65%
Wind Speed NE 7 mph
Barometer 30.19 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Sep 2:55 am CDT
Extended Forecast for

Godfrey IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 61. East wind around 7 mph.

    Low: 61 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 87. Southeast wind 10 to 13 mph.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Southeast wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 98. Heat index values as high as 104. South wind 7 to 10 mph becoming southwest in the afternoon.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 96. Chance of precipitation is 20%.

    High: 96 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 61. East wind around 7 mph.
Monday
Mostly sunny, with a high near 87. Southeast wind 10 to 13 mph.
Monday Night
Mostly clear, with a low around 72. Southeast wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 98. Heat index values as high as 104. South wind 7 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 60%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 96. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
Mostly sunny, with a high near 95.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Godfrey IL
 38.95°N 90.19°W (Elev. 600 ft)
Last Update:
2:31 am CDT Sep 14, 2026
Forecast Valid:
3am CDT Sep 14, 2026-6pm CDT Sep 20, 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