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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

FAIRFIELD (FAFI)

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

NA

84°F

29°C

Humidity 22%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index81°F (27°C)
Last update 31 Jul 11:00 AM MDT
Extended Forecast for

Fairfield ID

  • This Afternoon

    This Afternoon: Patchy smoke between 1pm and 2pm. Sunny and hot, with a high near 95. Southeast wind 7 to 10 mph becoming southwest.

    High: 95 °F

    Patchy Smoke

  • Tonight

    Tonight: Mostly clear, with a low around 54. Southwest wind 5 to 10 mph becoming light and variable.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Light and variable wind becoming southwest 9 to 14 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Patchy smoke before 10pm, then patchy smoke after midnight. Mostly clear, with a low around 52. West wind 6 to 13 mph, with gusts as high as 28 mph.

    Low: 52 °F

    Patchy Smoke

  • Sunday

    Sunday: Areas of smoke before 11am. Sunny, with a high near 87. West southwest wind 6 to 16 mph, with gusts as high as 28 mph.

    High: 87 °F

    Areas Smoke
    then Sunny

  • Sunday Night

    Sunday Night: Patchy smoke between 10pm and 1am. Mostly clear, with a low around 44.

    Low: 44 °F

    Patchy Smoke

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

This Afternoon
Patchy smoke between 1pm and 2pm. Sunny and hot, with a high near 95. Southeast wind 7 to 10 mph becoming southwest.
Tonight
Mostly clear, with a low around 54. Southwest wind 5 to 10 mph becoming light and variable.
Saturday
Sunny and hot, with a high near 97. Light and variable wind becoming southwest 9 to 14 mph in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
Patchy smoke before 10pm, then patchy smoke after midnight. Mostly clear, with a low around 52. West wind 6 to 13 mph, with gusts as high as 28 mph.
Sunday
Areas of smoke before 11am. Sunny, with a high near 87. West southwest wind 6 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Patchy smoke between 10pm and 1am. Mostly clear, with a low around 44.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny and hot, with a high near 92.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny and hot, with a high near 93. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield ID
 43.34°N 114.8°W (Elev. 5075 ft)
Last Update:
12:29 am MDT Jul 31, 2026
Forecast Valid:
12pm MDT Jul 31, 2026-6pm MDT Aug 6, 2026
 
Forecast Discussion
 
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