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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Overcast

79°F

26°C

Humidity 81%
Wind Speed NE 8 mph
Barometer 30.08 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 Aug 2:55 pm CDT
Extended Forecast for

Matteson IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 83. Northeast wind 5 to 10 mph.

    High: 83 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Northeast wind 5 to 10 mph.

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 88. Heat index values as high as 95. South wind around 10 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 83. Northeast wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 68. Northeast wind 5 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 88. Heat index values as high as 95. South wind around 10 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Matteson IL
 41.51°N 87.76°W
Last Update:
3:12 pm CDT Aug 17, 2025
Forecast Valid:
3pm CDT Aug 17, 2025-6pm CDT Aug 23, 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