National Weather Service Forecast for: Hermiston OR
Issued by: National Weather Service Pendleton, OR
Updated: 9:15 pm PST Dec 16, 2025
 
Tonight

Tonight: Rain, mainly between 10pm and 4am. Low around 42. Breezy, with a southwest wind 13 to 18 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Breezy

 Wednesday

Wednesday: A 30 percent chance of rain before 7am. Mostly sunny, with a high near 52. Breezy, with a west wind 23 to 29 mph, with gusts as high as 41 mph.
Breezy.
Chance Rain
then Mostly
Sunny
 Wednesday
Night
Wednesday Night: A 30 percent chance of rain after 10pm. Increasing clouds, with a low around 37. South wind 6 to 10 mph, with gusts as high as 20 mph.
Chance Rain

 Thursday

Thursday: Rain. High near 56. Southeast wind 5 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Rain

 Thursday
Night
Thursday Night: Rain. Low around 40. Southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Friday

Friday: Rain likely, mainly before 10am. Partly sunny, with a high near 49. Chance of precipitation is 70%.
Rain Likely

 Friday
Night
Friday Night: A chance of rain before 10pm, then a slight chance of rain after 4am. Partly cloudy, with a low around 34. Chance of precipitation is 30%.
Chance Rain

 Saturday

Saturday: A 20 percent chance of rain before 10am. Sunny, with a high near 49.
Slight Chance
Rain then
Sunny
 Saturday
Night
Saturday Night: A 20 percent chance of rain. Partly cloudy, with a low around 31.
Slight Chance
Rain
Lo 42 °F Hi 52 °F Lo 37 °F Hi 56 °F Lo 40 °F Hi 49 °F Lo 34 °F Hi 49 °F Lo 31 °F

High Wind Warning
 

Tonight
 
 Rain, mainly between 10pm and 4am. Low around 42. Breezy, with a southwest wind 13 to 18 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
 
 A 30 percent chance of rain before 7am. Mostly sunny, with a high near 52. Breezy, with a west wind 23 to 29 mph, with gusts as high as 41 mph.
Wednesday Night
 
 A 30 percent chance of rain after 10pm. Increasing clouds, with a low around 37. South wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday
 
 Rain. High near 56. Southeast wind 5 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
 
 Rain. Low around 40. Southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
 
 Rain likely, mainly before 10am. Partly sunny, with a high near 49. Chance of precipitation is 70%.
Friday Night
 
 A chance of rain before 10pm, then a slight chance of rain after 4am. Partly cloudy, with a low around 34. Chance of precipitation is 30%.
Saturday
 
 A 20 percent chance of rain before 10am. Sunny, with a high near 49.
Saturday Night
 
 A 20 percent chance of rain. Partly cloudy, with a low around 31.
Sunday
 
 A chance of rain, mainly after 10am. Partly sunny, with a high near 43.
Sunday Night
 
 A chance of rain. Mostly cloudy, with a low around 33.
Monday
 
 A chance of rain. Partly sunny, with a high near 48.
Monday Night
 
 A chance of rain. Mostly cloudy, with a low around 34.
Tuesday
 
 A chance of rain. Partly sunny, with a high near 46.

 

Forecast from NOAA-NWS for Hermiston OR.