Hermiston, Oregon Weather
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Weather Forecast for Hermiston, Oregon : Umatilla County
Issued: 10:52 pm PDT Sep 2, 2025 Latitude: 45.8404101 Longitude: -119.2894605 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday Sunny on Friday 30% chance of on Saturday 10% chance of rain on Sunday 20% chance of on Monday 20% chance of on Tuesday
Low: 64°F High: 102°F High: 100°F High: 97°F High: 89°F High: 88°F High: 85°F High: 79°F
Low: 68°F Low: 65°F Low: 68°F Low: 64°F Low: 62°F Low: 59°F  
Mostly Clear Sunny Sunny Sunny Partly Sunny Rain Partly Sunny Partly Sunny
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Current Conditions at
HERMISTON - (KHRI)
66°
Clear
as of 10:53 PM PDST
Rel. Humidity: 55%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
PENDLETON - (KPDT)
73°
Clear
as of 10:53 PM PDST
Rel. Humidity: 33%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
9 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
PASCO - (KPSC)
66°
Clear
as of 10:53 PM PDST
Rel. Humidity: 82%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 64. Light south wind.
Sunny on Wednesday Wednesday... Widespread haze after 11am. Sunny and hot, with a high near 102. Calm wind becoming north around 6 mph in the afternoon.
Cloudy on Wednesday Night Wednesday Night... Widespread haze before 11pm. Partly cloudy, with a low around 68. Northwest wind around 6 mph becoming south after midnight.
Sunny on Thursday Thursday... Sunny and hot, with a high near 100. South wind around 6 mph becoming west in the afternoon.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 65. North wind around 6 mph becoming south in the evening.
Sunny on Friday Friday... Sunny, with a high near 97.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 68.
30% chance of Saturday Saturday... A 30 percent chance of showers. Partly sunny, with a high near 89.
20% chance of rain Saturday Night Saturday Night... A 20 percent chance of showers. Mostly cloudy, with a low around 64.
10% chance of rain Sunday Sunday... A slight chance of showers. Mostly sunny, with a high near 88.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 62.
20% chance of Monday Monday... A chance of showers. Partly sunny, with a high near 85.
10% chance of rain Monday Night Monday Night... A slight chance of showers. Mostly cloudy, with a low around 59.
20% chance of Tuesday Tuesday... A chance of showers. Partly sunny, with a high near 79.
Sun Almanac for Hermiston, Oregon
Sunrise: 06:21 AM
Sunset: 7:31 PM
Civil Sunrise:05:51 AM
Civil Sunset: 8:02 PM
Nautical Sunrise: 05:14 AM
Nautical Sunset: 8:39 PM
Astro Sunrise: 04:35 AM
Astro Sunset: 9:17 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.