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

Logan-Cache Airport (KLGU)

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

Clear

57°F

14°C

Humidity 82%
Wind Speed NNW 3 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 17 Aug 03:20 AM MDT
Extended Forecast for

Lewiston UT

  • Overnight

    Overnight: Partly cloudy, with a low around 50. Light north wind.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. South southwest wind 5 to 7 mph becoming light and variable in the evening.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 9am and noon, then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. West northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 50. Light north wind.
Monday
Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 56. South southwest wind 5 to 7 mph becoming light and variable in the evening.
Tuesday
A slight chance of showers between 9am and noon, then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 54. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Sunny, with a high near 92.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 94.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston UT
 41.97°N 111.87°W (Elev. 4498 ft)
Last Update:
12:31 am MDT Aug 17, 2026
Forecast Valid:
3am MDT Aug 17, 2026-6pm MDT Aug 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