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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Current conditions at

Wallace Viaduct (ITD90)

Lat: 47.47432°NLon: 115.90816°WElev: 2792.0ft.

NA

36°F

2°C

Humidity 100%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility 1.24 mi
Last update 24 Dec 01:00 AM PST
Extended Forecast for

11 Miles S Wallace ID

  • Overnight

    Overnight: A 20 percent chance of rain. Snow level 6600 feet. Mostly cloudy, with a low around 35. East wind around 5 mph.

    Low: 35 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 39. East wind around 8 mph becoming south in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 2am, then a slight chance of snow between 2am and 3am, then a chance of rain and snow after 3am. Snow level 5100 feet lowering to 4300 feet after midnight . Cloudy, then gradually becoming partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Christmas Day

    Christmas Day: A chance of rain and snow before 9am, then rain. Snow level 5700 feet. High near 41. South wind 3 to 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 41 °F

    Rain/Snow
    Likely then
    Rain

  • Thursday Night

    Thursday Night: Rain before 1am, then snow, possibly mixed with rain. Snow level 5500 feet lowering to 4400 feet after midnight . Low around 32. South wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: Snow. High near 35. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 35 °F

    Snow

  • Friday Night

    Friday Night: Snow, mainly before 4am. Low around 25. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 25 °F

    Snow

  • Saturday

    Saturday: A 40 percent chance of snow before 10am. Mostly cloudy, with a high near 27.

    High: 27 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Snow level 6600 feet. Mostly cloudy, with a low around 35. East wind around 5 mph.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 39. East wind around 8 mph becoming south in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain and snow likely before 2am, then a slight chance of snow between 2am and 3am, then a chance of rain and snow after 3am. Snow level 5100 feet lowering to 4300 feet after midnight . Cloudy, then gradually becoming partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.
Christmas Day
A chance of rain and snow before 9am, then rain. Snow level 5700 feet. High near 41. South wind 3 to 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Rain before 1am, then snow, possibly mixed with rain. Snow level 5500 feet lowering to 4400 feet after midnight . Low around 32. South wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Snow. High near 35. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow, mainly before 4am. Low around 25. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Saturday
A 40 percent chance of snow before 10am. Mostly cloudy, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly cloudy, with a high near 30.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Partly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles S Wallace ID
 47.31°N 115.97°W (Elev. 4170 ft)
Last Update:
1:12 am PST Dec 24, 2025
Forecast Valid:
1am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation