National Weather Service Forecast for: Richland WA
Issued by: National Weather Service Pendleton, OR
Updated: 11:46 am PDT May 4, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 89. North wind around 8 mph.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 58. Northwest wind 6 to 9 mph.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 85. Northeast wind 6 to 10 mph, with gusts as high as 18 mph.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 55. Northeast wind 5 to 9 mph becoming light and variable after midnight.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 90. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 57.
Partly Cloudy
 Thursday

Thursday: Sunny, with a high near 87.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 55.
Partly Cloudy
 Friday

Friday: Partly sunny, with a high near 81.
Partly Sunny
Hi 89 °F Lo 58 °F Hi 85 °F Lo 55 °F Hi 90 °F Lo 57 °F Hi 87 °F Lo 55 °F Hi 81 °F

 

This Afternoon
 
 Sunny, with a high near 89. North wind around 8 mph.
Tonight
 
 Mostly clear, with a low around 58. Northwest wind 6 to 9 mph.
Tuesday
 
 Sunny, with a high near 85. Northeast wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
 
 Mostly clear, with a low around 55. Northeast wind 5 to 9 mph becoming light and variable after midnight.
Wednesday
 
 Sunny, with a high near 90. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
 
 Partly cloudy, with a low around 57.
Thursday
 
 Sunny, with a high near 87.
Thursday Night
 
 Partly cloudy, with a low around 55.
Friday
 
 Partly sunny, with a high near 81.
Friday Night
 
 Mostly clear, with a low around 50.
Saturday
 
 Sunny, with a high near 79.
Saturday Night
 
 Mostly clear, with a low around 53.
Sunday
 
 Mostly sunny, with a high near 86.

 

Forecast from NOAA-NWS for Richland WA.