See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
22°
Overcast
Feels Like: 21°
Min: 8°
Max: 22°
The next few hours will be overcast, with today reaching 22°C and dropping to 12°C. The coming days will be mostly clear throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:42
Sunrise
19:00
Sunset
Moon
Waxing Crescent
11:59
Moonrise
20:20
Moonset
Daily Forecast
Tuesday
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Hermiston today, September 15, 2026
Expect a muted, overcast feel in Hermiston on September 15, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief.
The temperature range runs from about 8°C up to 22°C. The air stays humid, with relative humidity between 44% and 63% and the peak around 23:00. A lighter breeze peaks around 18:00 near 2.7 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 17:00. Outdoor plans may still want a flexible backup. Expect visibility around 16.1 km. The sun rises at 06:42 and sets at 19:00, for a total of 12 hours 18 minutes of sunlight today.
Overall, Hermiston on September 15, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 22°C.
Frequently asked questions about weather in Hermiston
How warm does it get in Hermiston?
The warmest month in Hermiston is July, with average high temperatures of 35°C. The average temperature during this period is around 27°C.
How cold does it get in Hermiston?
The coldest month in Hermiston is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Hermiston?
The wettest month in Hermiston is December, with an average of 47mm of precipitation.
What is the driest time of year in Hermiston?
The driest month in Hermiston is July, with an average of 1mm of precipitation.
