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

Monsoons Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction

In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Sunday. The close proximity of Tropical Storm Humberto and a tropical wave (AL94) could lead to interaction between them, and details of their long-range track and intensity forecasts, and any potential impacts, are more uncertain than usual. Read More >

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Fair

63°F

17°C

Humidity 76%
Wind Speed N 3 mph
Barometer 29.96 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 25 Sep 12:55 am CDT
Extended Forecast for

Harvey IL

  • Overnight

    Overnight: A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 59. North northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 59 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 9am. Mostly sunny, with a high near 73. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 73 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Northeast wind around 5 mph becoming southwest in the evening.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Calm wind becoming west around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. South southeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 59. North northwest wind around 5 mph, with gusts as high as 10 mph.
Thursday
A 20 percent chance of showers before 9am. Mostly sunny, with a high near 73. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
Mostly clear, with a low around 55. Northeast wind around 5 mph becoming southwest in the evening.
Friday
Sunny, with a high near 80. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 59. South southeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 81.
Saturday Night
Clear, with a low around 60.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harvey IL
 41.62°N 87.67°W
Last Update:
12:56 am CDT Sep 25, 2025
Forecast Valid:
1am CDT Sep 25, 2025-6pm CDT Oct 1, 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