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.

Mostly Cloudy

85°F

29°C

Humidity 55%
Wind Speed S 18 G 26 mph
Barometer 29.79 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 17 May 4:35 pm CDT
Extended Forecast for

Ellisville IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 69. Breezy, with a south wind 14 to 20 mph, with gusts as high as 29 mph.

    Low: 69 °F

    Mostly Clear
    and Breezy
    then Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 84. South wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly after 4am. Increasing clouds, with a low around 66. South wind 14 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 7am, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 79. South southwest wind 14 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    T-storms
    Likely then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. North northeast wind 7 to 9 mph, with gusts as high as 17 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. East northeast wind around 6 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 69. Breezy, with a south wind 14 to 20 mph, with gusts as high as 29 mph.
Monday
Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 84. South wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely, mainly after 4am. Increasing clouds, with a low around 66. South wind 14 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely before 7am, then showers likely and possibly a thunderstorm after 7am. Mostly cloudy, with a high near 79. South southwest wind 14 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 50. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 67. North northeast wind 7 to 9 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly cloudy, with a low around 45. East northeast wind around 6 mph, with gusts as high as 15 mph.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ellisville IL
 40.63°N 90.31°W (Elev. 561 ft)
Last Update:
2:06 pm CDT May 17, 2026
Forecast Valid:
4pm CDT May 17, 2026-6pm CDT May 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation