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

Hurricane Lowell to Impact Kauai; Heat Continues in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai today. Impacts such as high surf and heavy rain could impact all of the islands. A Hurricane Warning is in effect for Kauai, Niihau and the surrounding coastal waters. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest this week with limited nighttime relief. Read More >

Current conditions at

Winchester (ITD41)

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

NA

59°F

15°C

Humidity 57%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility 1.24 mi
Last update 08 Sep 10:15 AM PDT
Extended Forecast for

Winchester ID

  • Today

    Today: Mostly sunny, with a high near 64. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. Light and variable wind becoming southeast around 5 mph in the evening.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. South wind around 5 mph becoming west in the afternoon.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. Light and variable wind becoming south 5 to 8 mph after midnight.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. South wind 8 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 46. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 64. Light and variable wind becoming north around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 44. Light and variable wind becoming southeast around 5 mph in the evening.
Wednesday
Sunny, with a high near 73. South wind around 5 mph becoming west in the afternoon.
Wednesday Night
Mostly clear, with a low around 50. Light and variable wind becoming south 5 to 8 mph after midnight.
Thursday
Sunny, with a high near 74. South wind 8 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 58.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 40.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 56.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40.
Monday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winchester ID
 46.24°N 116.62°W (Elev. 3950 ft)
Last Update:
2:31 am PDT Sep 8, 2026
Forecast Valid:
10am PDT Sep 8, 2026-6pm PDT Sep 14, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation