National Weather Service

News Headlines

NEW: Latest Drought Status Update - July 10, 2025

Hazardous Weather Conditions

Heat Advisory until July 14, 08:00 PM PDT

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

93°F

34°C

Humidity	20%
Wind Speed	WNW 17 MPH
Barometer	29.75 in (1007.45 mb)
Dewpoint	47°F (8°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	14 Jul 07:20 PM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Clarkston WA

Heat Advisory July 14, 07:36pm until July 14, 08:00pm

Click here for hazard details and duration

...

Heat Advisory July 14, 07:36pm until July 14, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Tonight
Low: 68 °F
Mostly Clear
and Breezy
then Mostly
Clear
Tuesday
High: 92 °F
Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
Wednesday
High: 97 °F
Hot
Wednesday Night
Low: 67 °F
Clear
Thursday
High: 102 °F
Hot
Thursday Night
Low: 68 °F
Clear
Friday
High: 103 °F
Hot

Detailed Forecast

Tonight

Mostly clear, with a low around 68. Breezy, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 31 mph.

Tuesday

Sunny, with a high near 92. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.

Tuesday Night

Mostly clear, with a low around 64. Northeast wind 7 to 14 mph, with gusts as high as 24 mph.

Wednesday

Sunny and hot, with a high near 97. Light and variable wind becoming east around 5 mph in the morning.

Wednesday Night

Clear, with a low around 67. Northwest wind around 6 mph becoming calm in the evening.

Thursday

Sunny and hot, with a high near 102.

Thursday Night

Clear, with a low around 68.