Hazardous Weather Conditions
Current conditions at
Lewiston, Lewiston-Nez Perce County Airport (KLWS)
Lat: 46.37472°NLon: 117.01444°WElev: 1437.0ft.
Partly Cloudy
90°F
32°C
| Humidity | 22% |
| Wind Speed | S 9 MPH |
| Barometer | 29.9 in (1012.53 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 21 Aug 11:20 PM PDT |
Extended Forecast for
2 Miles SSW Lewiston ID
Heat Advisory August 21, 11:35pm until August 22, 07:00pm
NOW until 7:00pm Sat

Heat Advisory
Tonight

Low: 72 °F
Haze
Saturday
High: 97 °F
Mostly Sunny
then Slight
Chance
T-stormsSaturday Night
Low: 62 °F
Chance
Showers then
Partly CloudySunday

High: 86 °F
Sunny
Sunday Night

Low: 58 °F
Clear
Monday

High: 91 °F
Sunny
Monday Night

Low: 62 °F
Mostly Clear
Tuesday

High: 97 °F
Hot
Detailed Forecast
Tonight
Widespread haze between 1am and 3am. Patchy smoke between 2am and 3am. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming light and variable after midnight.
Saturday
A slight chance of thunderstorms after 5pm. Mostly sunny and hot, with a high near 97. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Partly cloudy, with a low around 62. West wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Sunny, with a high near 86. Light northwest wind increasing to 8 to 13 mph in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Clear, with a low around 58. Northwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SSW Lewiston ID
46.38°N 117.03°W (Elev. 1201 ft)
46.38°N 117.03°W (Elev. 1201 ft)
10:41 pm PDT Aug 21, 2026
11pm PDT Aug 21, 2026-6pm PDT Aug 28, 2026



