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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Gem Valley (ITDC3)

Lat: 42.64943°NLon: 111.82603°WElev: 5523.0ft.

NA

24°F

-4°C

Humidity 73%
Wind Speed N 1 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility 1.24 mi
Last update 30 Dec 02:15 PM MST
Extended Forecast for

Downey ID

  • This Afternoon

    This Afternoon: Sunny, with a high near 40. Light south southeast wind.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 19. Calm wind.

    Low: 19 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 44. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 44 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Snow, mainly after 5am. Low around 28. Southeast wind around 6 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Slight Chance
    Snow then
    Snow

  • New Year's Day

    New Year's Day: Snow before 8am, then rain, possibly mixed with snow between 8am and 2pm, then rain after 2pm. Snow level rising to 6800 feet in the afternoon. High near 40. South southeast wind 5 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain. Snow level 7100 feet. Low around 34. Chance of precipitation is 80%.

    Low: 34 °F

    Rain

  • Friday

    Friday: A 50 percent chance of rain. Snow level 7400 feet. Cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain. Snow level 7000 feet. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 40. Light south southeast wind.
Tonight
Increasing clouds, with a low around 19. Calm wind.
Wednesday
Partly sunny, with a high near 44. Calm wind becoming southeast around 6 mph in the afternoon.
Wednesday Night
Snow, mainly after 5am. Low around 28. Southeast wind around 6 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
New Year's Day
Snow before 8am, then rain, possibly mixed with snow between 8am and 2pm, then rain after 2pm. Snow level rising to 6800 feet in the afternoon. High near 40. South southeast wind 5 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
Rain. Snow level 7100 feet. Low around 34. Chance of precipitation is 80%.
Friday
A 50 percent chance of rain. Snow level 7400 feet. Cloudy, with a high near 43.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
A 50 percent chance of rain. Snow level 7000 feet. Mostly cloudy, with a high near 45.
Saturday Night
Rain likely before 11pm, then a chance of rain and snow. Snow level 6700 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Sunday
A chance of rain and snow. Snow level 5700 feet. Mostly cloudy, with a high near 42. Chance of precipitation is 50%.
Sunday Night
A chance of rain and snow. Snow level 5500 feet. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Monday
A chance of rain and snow. Snow level 5100 feet. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Downey ID
 42.43°N 112.12°W (Elev. 4888 ft)
Last Update:
1:02 pm MST Dec 30, 2025
Forecast Valid:
2pm MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation