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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Monroe Municipal Airport (KEFT)

Lat: 42.62°NLon: 89.59°WElev: 1082ft.

Fair

13°F

-11°C

Humidity 81%
Wind Speed N 6 mph
Barometer 29.92 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 2 Jan 7:35 am CST
Extended Forecast for

Rock City IL

  • Today

    Today: Increasing clouds, with a high near 23. Northwest wind around 5 mph.

    High: 23 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Cloudy, with a low around 16. North wind around 5 mph.

    Low: 16 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 26. Calm wind becoming west around 5 mph in the afternoon.

    High: 26 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11. West wind around 5 mph becoming calm after midnight.

    Low: 11 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 23. Northwest wind around 5 mph.
Tonight
Cloudy, with a low around 16. North wind around 5 mph.
Saturday
Mostly cloudy, with a high near 26. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 11. West wind around 5 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rock City IL
 42.4°N 89.46°W (Elev. 906 ft)
Last Update:
7:01 am CST Jan 2, 2026
Forecast Valid:
7am CST Jan 2, 2026-6pm CST Jan 8, 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