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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

Gem Valley (ITDC3)

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

NA

33°F

1°C

Humidity 64%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility 1.24 mi
Wind Chill24°F (-4°C)
Last update 01 Jan 08:30 AM MST
Extended Forecast for

Downey ID

  • New Year's Day

    New Year's Day: Rain, possibly mixed with snow, becoming all rain after 4pm. Snow level rising to 6200 feet in the afternoon. High near 39. Southeast wind 6 to 8 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    Likely then
    Rain/Snow

  • Tonight

    Tonight: Rain. Snow level 6800 feet. Steady temperature around 35. Southeast wind 3 to 6 mph. Chance of precipitation is 90%.

    Low: 35 °F

    Rain

  • Friday

    Friday: Rain, mainly before 11am. Snow level 6700 feet. High near 42. South wind 3 to 8 mph. Chance of precipitation is 80%.

    High: 42 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32. South southeast wind around 7 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 46. South wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 46 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Rain likely, mainly after 11pm. Snow level 6800 feet. Cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely, mainly after 11am. Snow level 6500 feet. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.

    High: 45 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely. Snow level 6700 feet. Cloudy, with a low around 33. Chance of precipitation is 70%.

    Low: 33 °F

    Rain Likely

  • Monday

    Monday: Rain. Snow level 6300 feet. High near 43. Chance of precipitation is 80%.

    High: 43 °F

    Rain

Detailed Forecast

New Year's Day
Rain, possibly mixed with snow, becoming all rain after 4pm. Snow level rising to 6200 feet in the afternoon. High near 39. Southeast wind 6 to 8 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tonight
Rain. Snow level 6800 feet. Steady temperature around 35. Southeast wind 3 to 6 mph. Chance of precipitation is 90%.
Friday
Rain, mainly before 11am. Snow level 6700 feet. High near 42. South wind 3 to 8 mph. Chance of precipitation is 80%.
Friday Night
Mostly cloudy, with a low around 32. South southeast wind around 7 mph.
Saturday
Mostly cloudy, with a high near 46. South wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Rain likely, mainly after 11pm. Snow level 6800 feet. Cloudy, with a low around 33. Chance of precipitation is 60%.
Sunday
Rain likely, mainly after 11am. Snow level 6500 feet. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.
Sunday Night
Rain likely. Snow level 6700 feet. Cloudy, with a low around 33. Chance of precipitation is 70%.
Monday
Rain. Snow level 6300 feet. High near 43. Chance of precipitation is 80%.
Monday Night
A chance of rain before 8pm, then a chance of rain and snow. Snow level 6100 feet lowering to 5300 feet after midnight . Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Tuesday
A chance of rain and snow. Snow level 4900 feet. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 20%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Downey ID
 42.43°N 112.12°W (Elev. 4888 ft)
Last Update:
4:31 am MST Jan 1, 2026
Forecast Valid:
8am MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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