National Weather Service Forecast for: Hermiston OR
Issued by: National Weather Service Pendleton, OR
Updated: 9:45 pm PST Dec 19, 2025
 
Overnight

Overnight: Partly cloudy, with a low around 34. Southwest wind around 10 mph, with gusts as high as 18 mph.
Partly Cloudy
 Saturday

Saturday: Mostly sunny, with a high near 51. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Mostly Sunny
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 31. South wind around 6 mph.
Mostly Cloudy
 Sunday

Sunday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 46. Southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
 Sunday
Night
Sunday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 33. Southwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
 Monday

Monday: Mostly sunny, with a high near 51.
Mostly Sunny
 Monday
Night
Monday Night: Mostly cloudy, with a low around 31.
Mostly Cloudy
 Tuesday

Tuesday: Mostly cloudy, with a high near 45.
Mostly Cloudy
 Tuesday
Night
Tuesday Night: A 50 percent chance of rain. Cloudy, with a low around 32.
Chance Rain
Lo 34 °F Hi 51 °F Lo 31 °F Hi 46 °F Lo 33 °F Hi 51 °F Lo 31 °F Hi 45 °F Lo 32 °F

 

Overnight
 
 Partly cloudy, with a low around 34. Southwest wind around 10 mph, with gusts as high as 18 mph.
Saturday
 
 Mostly sunny, with a high near 51. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Saturday Night
 
 Mostly cloudy, with a low around 31. South wind around 6 mph.
Sunday
 
 Rain likely, mainly after 4pm. Mostly cloudy, with a high near 46. Southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
 
 Rain likely, mainly before 10pm. Mostly cloudy, with a low around 33. Southwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
 
 Mostly sunny, with a high near 51.
Monday Night
 
 Mostly cloudy, with a low around 31.
Tuesday
 
 Mostly cloudy, with a high near 45.
Tuesday Night
 
 A 50 percent chance of rain. Cloudy, with a low around 32.
Wednesday
 
 A chance of rain. Partly sunny, with a high near 46.
Wednesday Night
 
 A chance of rain. Mostly cloudy, with a low around 30.
Christmas Day
 
 A chance of rain. Mostly cloudy, with a high near 43.
Thursday Night
 
 A chance of rain and snow. Mostly cloudy, with a low around 30.
Friday
 
 A slight chance of rain and snow. Mostly sunny, with a high near 45.

 

Forecast from NOAA-NWS for Hermiston OR.