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

72°F

22°C

Humidity 27%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 14 May 1:35 pm CDT
Extended Forecast for

Lewistown IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. South wind around 8 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 54. South southeast wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Partly Cloudy
    then Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 79. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South southeast wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 83. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. South wind 3 to 6 mph. Winds could gust as high as 18 mph.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 89. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 89 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Breezy. Chance of precipitation is 60%.

    High: 89 °F

    T-storms
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 75. South wind around 8 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 54. South southeast wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 79. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South southeast wind 6 to 9 mph, with gusts as high as 18 mph.
Saturday
Showers and possibly a thunderstorm. High near 83. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. South wind 3 to 6 mph. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 89. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 69.
Monday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Breezy. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms, then showers likely after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Tuesday
Showers likely. Partly sunny, with a high near 84.
Tuesday Night
Showers likely. Partly cloudy, with a low around 57.
Wednesday
A chance of showers. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown IL
 40.41°N 90.15°W (Elev. 568 ft)
Last Update:
1:26 pm CDT May 14, 2026
Forecast Valid:
1pm CDT May 14, 2026-6pm CDT May 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