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

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Freezing Fog

31°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 30.41 in
Dewpoint 31°F (-1°C)
Visibility 0.25 mi
Last update 11 Apr 3:15 am CDT
Extended Forecast for

Harvey IL

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 58. East wind 5 to 10 mph.

    High: 58 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 51. East wind 5 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 51 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Scattered showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 77. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.

    High: 77 °F

    Scattered
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Showers and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 37. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 58. East wind 5 to 10 mph.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51. East wind 5 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.
Sunday
Scattered showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 77. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Sunday Night
Showers and possibly a thunderstorm. Low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 60.
Thursday
A chance of showers. Partly sunny, with a high near 78.
Thursday Night
A chance of showers. Partly cloudy, with a low around 58.
Friday
A chance of showers. Partly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Harvey IL
 41.62°N 87.64°W
Last Update:
3:06 am CDT Apr 11, 2026
Forecast Valid:
3am CDT Apr 11, 2026-6pm CDT Apr 17, 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