National Weather Service Forecast for: Hermiston OR
Issued by: National Weather Service Pendleton, OR
Updated: 4:01 am PST Nov 1, 2026
 
Today

Today: Partly sunny, then gradually becoming sunny, with a high near 54. Southwest wind 3 to 5 mph.
Becoming
Sunny
 Tonight

Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 33. South wind around 5 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Monday

Monday: Patchy fog before 10am. Otherwise, increasing clouds, with a high near 56. Light and variable wind.
Patchy Fog
then Partly
Sunny
 Monday
Night
Monday Night: Mostly cloudy, with a low around 36. Calm wind.
Mostly Cloudy

 Tuesday

Tuesday: Mostly cloudy, with a high near 55. Calm wind.
Mostly Cloudy

 Tuesday
Night
Tuesday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 34.
Patchy Fog

 Wednesday

Wednesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 58.
Patchy Fog
then Mostly
Sunny
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 38.
Mostly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 59.
Mostly Sunny
Hi 54 °F Lo 33 °F Hi 56 °F Lo 36 °F Hi 55 °F Lo 34 °F Hi 58 °F Lo 38 °F Hi 59 °F

 

Today
 
 Partly sunny, then gradually becoming sunny, with a high near 54. Southwest wind 3 to 5 mph.
Tonight
 
 Patchy fog after 4am. Otherwise, mostly clear, with a low around 33. South wind around 5 mph becoming calm in the evening.
Monday
 
 Patchy fog before 10am. Otherwise, increasing clouds, with a high near 56. Light and variable wind.
Monday Night
 
 Mostly cloudy, with a low around 36. Calm wind.
Tuesday
 
 Mostly cloudy, with a high near 55. Calm wind.
Tuesday Night
 
 Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 34.
Wednesday
 
 Patchy fog before 10am. Otherwise, mostly sunny, with a high near 58.
Wednesday Night
 
 Mostly cloudy, with a low around 38.
Thursday
 
 Mostly sunny, with a high near 59.
Thursday Night
 
 Mostly cloudy, with a low around 37.
Friday
 
 A slight chance of showers. Partly sunny, with a high near 59.
Friday Night
 
 Partly cloudy, with a low around 36.
Saturday
 
 Partly sunny, with a high near 57.

 

Forecast from NOAA-NWS for Hermiston OR.