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

Hazardous Weather Conditions

Current conditions at

Macomb Municipal Airport (KMQB)

Lat: 40.52°NLon: 90.65°WElev: 679ft.

Partly Cloudy

87°F

31°C

Humidity 75%
Wind Speed SE 7 mph
Barometer 30.08 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 17 Aug 12:15 pm CDT
Extended Forecast for

4 Miles SW Lewistown IL

Heat Advisory August 17, 12:21pm until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 12:21pm until August 17, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94. Heat index values as high as 107. Calm wind becoming south around 6 mph in the morning.

    High: 94 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Light south wind.

    Low: 73 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. North northwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 84. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 84 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind.
Tonight
Partly cloudy, with a low around 73. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94. Heat index values as high as 107. Calm wind becoming south around 6 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Light south wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 69. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 84. North northeast wind 5 to 8 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Lewistown IL
 40.36°N 90.21°W (Elev. 453 ft)
Last Update:
11:40 am CDT Aug 17, 2025
Forecast Valid:
12pm CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
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