National Weather Service Forecast for: Hermiston OR
Issued by: National Weather Service Pendleton, OR
Updated: 9:15 pm PST Dec 4, 2025
 
Tonight

Tonight: Rain. Low around 40. Southwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Rain

 Friday

Friday: Rain, mainly before 1pm. High near 56. Southwest wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Rain

 Friday
Night
Friday Night: A 10 percent chance of rain before 7pm. Partly cloudy, with a low around 44. Breezy, with a west wind around 25 mph, with gusts as high as 43 mph.
Breezy.
Slight Chance
Rain then
Partly Cloudy
 Saturday

Saturday: A 20 percent chance of rain after 10am. Partly sunny, with a high near 55. Southwest wind 18 to 21 mph, with gusts as high as 36 mph.
Slight Chance
Rain

 Saturday
Night
Saturday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 40. Southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
then Rain
Likely
 Sunday

Sunday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Rain Likely

 Sunday
Night
Sunday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 43.
Chance Rain

 Monday

Monday: A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 57.
Slight Chance
Rain

 Monday
Night
Monday Night: Rain likely, mainly after 4am. Cloudy, with a low around 48. Chance of precipitation is 60%.
Rain Likely
Lo 40 °F Hi 56 °F Lo 44 °F Hi 55 °F Lo 40 °F Hi 57 °F Lo 43 °F Hi 57 °F Lo 48 °F

Wind Advisory
 

Tonight
 
 Rain. Low around 40. Southwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
 
 Rain, mainly before 1pm. High near 56. Southwest wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
 
 A 10 percent chance of rain before 7pm. Partly cloudy, with a low around 44. Breezy, with a west wind around 25 mph, with gusts as high as 43 mph.
Saturday
 
 A 20 percent chance of rain after 10am. Partly sunny, with a high near 55. Southwest wind 18 to 21 mph, with gusts as high as 36 mph.
Saturday Night
 
 Rain likely, mainly after 4am. Mostly cloudy, with a low around 40. Southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
 
 Rain likely, mainly before 10am. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Sunday Night
 
 A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 43.
Monday
 
 A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 57.
Monday Night
 
 Rain likely, mainly after 4am. Cloudy, with a low around 48. Chance of precipitation is 60%.
Tuesday
 
 Rain likely, mainly before 10am. Mostly cloudy, with a high near 60.
Tuesday Night
 
 Rain likely. Mostly cloudy, with a low around 44.
Wednesday
 
 A chance of rain. Mostly cloudy, with a high near 58.
Wednesday Night
 
 A chance of rain. Mostly cloudy, with a low around 45.
Thursday
 
 A chance of rain. Mostly cloudy, with a high near 56.

 

Forecast from NOAA-NWS for Hermiston OR.