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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

Logan-Cache Airport (KLGU)

Lat: 41.78652°NLon: 111.85187°WElev: 4446.0ft.

Clear

32°F

0°C

Humidity 86%
Wind Speed NNW 3 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 17 Mar 08:35 AM MDT
Extended Forecast for

Lewiston UT

  • Today

    Today: Sunny, with a high near 68. Light south southwest wind becoming southwest 5 to 10 mph in the morning.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. West southwest wind 5 to 9 mph becoming calm after midnight.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 43. South southwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 68. Light south southwest wind becoming southwest 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 39. West southwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 74. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.
Wednesday Night
Clear, with a low around 43. South southwest wind 5 to 8 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 76. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly cloudy, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewiston UT
 41.97°N 111.87°W (Elev. 4498 ft)
Last Update:
12:31 am MDT Mar 17, 2026
Forecast Valid:
8am MDT Mar 17, 2026-6pm MDT Mar 23, 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