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.

Fair

75°F

24°C

Humidity 91%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 7 Aug 10:15 am CDT
Extended Forecast for

Lewistown IL

  • Today

    Today: Isolated showers and thunderstorms. Mostly cloudy, with a high near 88. South southwest wind 5 to 9 mph. Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms. Mostly cloudy, with a low around 73. South wind 5 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Isolated
    T-storms

  • Friday

    Friday: Sunny, with a high near 92. Heat index values as high as 103. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South southeast wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 92. South wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South wind 6 to 8 mph, with gusts as high as 17 mph.

    Low: 73 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 88. South southwest wind around 7 mph, with gusts as high as 15 mph.

    High: 88 °F

    Partly Sunny

  • Sunday Night

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

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Isolated showers and thunderstorms. Mostly cloudy, with a high near 88. South southwest wind 5 to 9 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms. Mostly cloudy, with a low around 73. South wind 5 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 92. Heat index values as high as 103. South wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 74. South southeast wind 7 to 9 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 92. South wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South wind 6 to 8 mph, with gusts as high as 17 mph.
Sunday
Partly sunny, with a high near 88. South southwest wind around 7 mph, with gusts as high as 15 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown IL
 40.41°N 90.15°W (Elev. 568 ft)
Last Update:
9:40 am CDT Aug 7, 2025
Forecast Valid:
10am CDT Aug 7, 2025-6pm CDT Aug 13, 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