National Weather Service Forecast for: Hermiston OR
Issued by: National Weather Service Pendleton, OR
Updated: 11:35 pm PDT Apr 5, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 47. Light south wind.
Mostly Cloudy
 Monday

Monday: Mostly sunny, with a high near 79. Calm wind becoming west 5 to 9 mph in the afternoon.
Mostly Sunny
 Monday
Night
Monday Night: Partly cloudy, with a low around 50. Southwest wind around 11 mph, with gusts as high as 21 mph.
Partly Cloudy
 Tuesday

Tuesday: Sunny, with a high near 66. West wind 13 to 20 mph, with gusts as high as 30 mph.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 37. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 66.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 39.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 70.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 43.
Mostly Clear
Lo 47 °F Hi 79 °F Lo 50 °F Hi 66 °F Lo 37 °F Hi 66 °F Lo 39 °F Hi 70 °F Lo 43 °F

 

Tonight
 
 Mostly cloudy, with a low around 47. Light south wind.
Monday
 
 Mostly sunny, with a high near 79. Calm wind becoming west 5 to 9 mph in the afternoon.
Monday Night
 
 Partly cloudy, with a low around 50. Southwest wind around 11 mph, with gusts as high as 21 mph.
Tuesday
 
 Sunny, with a high near 66. West wind 13 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
 
 Mostly clear, with a low around 37. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Wednesday
 
 Sunny, with a high near 66.
Wednesday Night
 
 Mostly clear, with a low around 39.
Thursday
 
 Sunny, with a high near 70.
Thursday Night
 
 Mostly clear, with a low around 43.
Friday
 
 Mostly sunny, with a high near 73.
Friday Night
 
 Partly cloudy, with a low around 46.
Saturday
 
 A slight chance of rain. Mostly sunny, with a high near 67.
Saturday Night
 
 A slight chance of rain. Mostly cloudy, with a low around 43.
Sunday
 
 A slight chance of rain. Partly sunny, with a high near 63.

 

Forecast from NOAA-NWS for Hermiston OR.