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

Winchester (ITD41)

Lat: 46.25521°NLon: 116.6051°WElev: 3761.0ft.

NA

44°F

7°C

Humidity 89%
Wind Speed SSE 4 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility 1.24 mi
Wind Chill42°F (6°C)
Last update 02 Jan 10:45 AM PST
Extended Forecast for

10 Miles SSW Winchester ID

  • Today

    Today: A 30 percent chance of rain before 1pm. Snow level 7100 feet. Mostly cloudy, with a high near 39. South wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Chance Rain

  • Tonight

    Tonight: A 10 percent chance of rain after 4am. Snow level 6600 feet. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 6 to 9 mph.

    Low: 33 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly before 10am. Snow level 6200 feet. Partly sunny, with a high near 44. South wind around 9 mph, with gusts as high as 21 mph.

    High: 44 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 10pm. Snow level 5600 feet. Mostly cloudy, with a low around 34. South wind around 9 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely before 10am, then snow likely, possibly mixed with rain. Snow level 4900 feet. Mostly cloudy, with a high near 41. South wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 41 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A 50 percent chance of snow, mainly before 4pm. Mostly cloudy, with a high near 37. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow

  • Monday Night

    Monday Night: A slight chance of snow before 10pm, then a slight chance of snow after 4am. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: A 40 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

Today
A 30 percent chance of rain before 1pm. Snow level 7100 feet. Mostly cloudy, with a high near 39. South wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 10 percent chance of rain after 4am. Snow level 6600 feet. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 6 to 9 mph.
Saturday
A 30 percent chance of rain, mainly before 10am. Snow level 6200 feet. Partly sunny, with a high near 44. South wind around 9 mph, with gusts as high as 21 mph.
Saturday Night
A 30 percent chance of rain after 10pm. Snow level 5600 feet. Mostly cloudy, with a low around 34. South wind around 9 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely before 10am, then snow likely, possibly mixed with rain. Snow level 4900 feet. Mostly cloudy, with a high near 41. South wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday
A 50 percent chance of snow, mainly before 4pm. Mostly cloudy, with a high near 37. New snow accumulation of less than a half inch possible.
Monday Night
A slight chance of snow before 10pm, then a slight chance of snow after 4am. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 35.
Tuesday Night
Snow likely, mainly after 10pm. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.
Wednesday
Snow likely. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 23.
Thursday
A 50 percent chance of snow. Partly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SSW Winchester ID
 46.1°N 116.68°W (Elev. 4600 ft)
Last Update:
10:06 am PST Jan 2, 2026
Forecast Valid:
11am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation