National Weather Service Forecast for: Richland WA
Issued by: National Weather Service Pendleton, OR
Updated: 3:00 pm PDT Jun 18, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.
Partly Cloudy
 Juneteenth

Juneteenth: Mostly sunny, with a high near 95. North wind 3 to 6 mph.
Mostly Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 63. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Partly Cloudy
 Saturday

Saturday: Sunny, with a high near 91. Southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Sunny
 Saturday
Night
Saturday Night: Clear, with a low around 56. Southwest wind 5 to 11 mph, with gusts as high as 21 mph.
Clear
 Sunday

Sunday: Sunny, with a high near 90.
Sunny
 Sunday
Night
Sunday Night: Clear, with a low around 59.
Clear
 Monday

Monday: Sunny, with a high near 93.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 60.
Mostly Clear
Lo 61 °F Hi 95 °F Lo 63 °F Hi 91 °F Lo 56 °F Hi 90 °F Lo 59 °F Hi 93 °F Lo 60 °F

 

Tonight
 
 Partly cloudy, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.
Juneteenth
 
 Mostly sunny, with a high near 95. North wind 3 to 6 mph.
Friday Night
 
 Partly cloudy, with a low around 63. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Saturday
 
 Sunny, with a high near 91. Southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Saturday Night
 
 Clear, with a low around 56. Southwest wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday
 
 Sunny, with a high near 90.
Sunday Night
 
 Clear, with a low around 59.
Monday
 
 Sunny, with a high near 93.
Monday Night
 
 Mostly clear, with a low around 60.
Tuesday
 
 Sunny and hot, with a high near 98.
Tuesday Night
 
 Mostly clear, with a low around 64.
Wednesday
 
 Sunny and hot, with a high near 98.
Wednesday Night
 
 Mostly clear, with a low around 62.
Thursday
 
 Sunny, with a high near 94.

 

Forecast from NOAA-NWS for Richland WA.