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

FAIRFIELD (FAFI)

Lat: 43.30833°NLon: 114.825°WElev: 5039.0ft.

NA

51°F

11°C

Humidity 44%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 14 Oct 08:00 PM MDT
Extended Forecast for

Fairfield ID

  • Tonight

    Tonight: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 28. North northwest wind 3 to 6 mph.

    Low: 28 °F

    Mostly Clear
    then Frost

  • Thursday

    Thursday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 63. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 63 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. Light and variable wind.

    Low: 30 °F

    Mostly Clear
    then Frost

  • Friday

    Friday: Widespread frost before 9am. Otherwise, sunny, with a high near 66. North northeast wind 5 to 13 mph becoming east southeast in the afternoon. Winds could gust as high as 23 mph.

    High: 66 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. East southeast wind 5 to 11 mph becoming north northeast after midnight.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Widespread frost between 7am and 9am. Otherwise, sunny, with a high near 65.

    High: 65 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 28. North northwest wind 3 to 6 mph.
Thursday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 63. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. Light and variable wind.
Friday
Widespread frost before 9am. Otherwise, sunny, with a high near 66. North northeast wind 5 to 13 mph becoming east southeast in the afternoon. Winds could gust as high as 23 mph.
Friday Night
Mostly clear, with a low around 32. East southeast wind 5 to 11 mph becoming north northeast after midnight.
Saturday
Widespread frost between 7am and 9am. Otherwise, sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 55.
Tuesday Night
A 30 percent chance of showers. Patchy fog. Otherwise, partly cloudy, with a low around 30.
Wednesday
A 30 percent chance of showers. Patchy fog. Otherwise, partly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield ID
 43.36°N 114.78°W (Elev. 5085 ft)
Last Update:
12:29 pm MDT Oct 14, 2026
Forecast Valid:
9pm MDT Oct 14, 2026-6pm MDT Oct 21, 2026
 
Forecast Discussion
 
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