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 >

Current conditions at

Monticello Regional Airport (KMXO)

Lat: 42.22°NLon: 91.16°WElev: 827ft.

Fair

21°F

-6°C

Humidity 80%
Wind Speed N 6 mph
Barometer 29.98 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 2 Jan 5:15 pm CST
Extended Forecast for

Onslow IA

  • Tonight

    Tonight: Cloudy, with a low around 18. North wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 26. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 26 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 14. Northwest wind around 5 mph becoming calm in the evening.

    Low: 14 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 30. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 30 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 18. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 26. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 14. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Increasing clouds, with a high near 30. Light and variable wind becoming south 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Partly sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 49.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onslow IA
 42.11°N 91.01°W (Elev. 863 ft)
Last Update:
4:46 pm CST Jan 2, 2026
Forecast Valid:
5pm CST Jan 2, 2026-6pm CST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation