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.

light snow

22°F

-6°C

Humidity 96%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility 0.24 mi
Last update 18 Jan 08:30 PM PST
Extended Forecast for

Winchester ID

Air Stagnation Advisory January 18, 08:58pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 08:58pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 25 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 39. South wind around 5 mph becoming calm  in the morning.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. South wind 3 to 5 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40. Southwest wind around 5 mph becoming light and variable  in the afternoon.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Light south wind.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 25. Calm wind.
M.L.King Day
Mostly sunny, with a high near 39. South wind around 5 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 25. South wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 40. Southwest wind around 5 mph becoming light and variable in the afternoon.
Tuesday Night
Mostly clear, with a low around 22. Light south wind.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 39.
Thursday Night
A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 26.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 36.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 34.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
Winchester ID
 46.24°N 116.62°W (Elev. 3950 ft)
3:07 pm PST Jan 18, 2026
8pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database