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

Hazardous Weather Conditions

Current conditions at

Quincy Regional Airport-Baldwin Field (KUIN)

Lat: 39.94°NLon: 91.2°WElev: 759ft.

Fair

80°F

27°C

Humidity 85%
Wind Speed S 7 mph
Barometer 30.05 in (1016.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 2 Jul 7:54 am CDT
Extended Forecast for

Clayton IL

Extreme Heat Warning July 2, 08:21am until July 3, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 08:21am until July 3, 10:00pm

    NOW until 10:00pm Fri

    Extreme Heat Warning

  • Today

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 76. South wind 5 to 7 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 6 to 10 mph.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 6 mph.

    Low: 73 °F

    Slight Chance
    T-storms

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Southwest wind 6 to 8 mph.

    High: 91 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 92. Heat index values as high as 101. Southwest wind 7 to 11 mph.
Tonight
Mostly clear, with a low around 76. South wind 5 to 7 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 6 to 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 6 mph.
Independence Day
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Southwest wind 6 to 8 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
Partly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clayton IL
 40.03°N 90.94°W (Elev. 728 ft)
Last Update:
6:01 am CDT Jul 2, 2026
Forecast Valid:
8am CDT Jul 2, 2026-6pm CDT Jul 8, 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