Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Winchester (ITD41)

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

NA

20°F

-7°C

Humidity 95%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility 1.24 mi
Last update 19 Jan 08:45 PM PST
Extended Forecast for

Winchester ID

Air Stagnation Advisory January 19, 09:10pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 09:10pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 25 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 38. Light and variable wind.

    High: 38 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39. Light and variable wind becoming south around 5 mph.

    High: 39 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

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

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 25. Southwest wind 3 to 5 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 38. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 21. Calm wind.
Wednesday
Mostly sunny, with a high near 39. Light and variable wind becoming south around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 23. Calm wind.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 34.
Friday Night
A 10 percent chance of snow after 4am. Partly cloudy, with a low around 20.
Saturday
A 20 percent chance of snow before 10am. Mostly sunny, with a high near 37.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 24.
Sunday
A 30 percent chance of snow. Mostly cloudy, with a high near 40.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 28.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
Winchester ID
 46.24°N 116.62°W (Elev. 3950 ft)
9:02 pm PST Jan 19, 2026
9pm PST Jan 19, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database