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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

Lat: 46.37472°NLon: 117.01444°WElev: 1437.0ft.

Clear

63°F

17°C

Humidity 59%
Wind Speed SSW 5 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 18 Aug 04:35 AM PDT
Extended Forecast for

3 Miles ENE Lewiston ID

  • Today

    Today: Sunny, with a high near 95. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Northwest wind 5 to 9 mph becoming light after midnight.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Light northwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 95. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Tonight
Mostly clear, with a low around 63. Northwest wind 5 to 9 mph becoming light after midnight.
Tuesday
Sunny and hot, with a high near 97. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 64. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 94. Light northwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny and hot, with a high near 96.
Thursday Night
Clear, with a low around 61.
Friday
Sunny and hot, with a high near 101.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny and hot, with a high near 105.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny and hot, with a high near 103.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Lewiston ID
 46.44°N 116.95°W (Elev. 1017 ft)
Last Update:
4:15 am PDT Aug 18, 2025
Forecast Valid:
4am PDT Aug 18, 2025-6pm PDT Aug 24, 2025
 
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