See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
21°
Overcast
Feels Like: 17°
Min: 9°
Max: 21°
The next few hours will be clear, with today reaching 21°C and dropping to 10°C. The coming days will be partly cloudy starting in the afternoon.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:38
Sunrise
18:57
Sunset
Moon
Waxing Crescent
11:56
Moonrise
20:15
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Walla Walla today, September 15, 2026
Walla Walla stays under cloudy skies on September 15, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open.
The temperature range runs from about 9°C up to 21°C. Expect humidity between 38% and 73%, most humid near 23:00. A lighter breeze peaks around 21:00 near 2.0 km/h.
Through the afternoon cloud remains the main feature, with cover near 100% around 16:00. Bright spells should stay limited even as the day wears on. Expect visibility around 16.1 km. Daylight runs from 06:38 to 18:57, lasting 12 hours 18 minutes of sunlight today.
The practical takeaway for Walla Walla on September 15, 2026 is a cloudy day that stays usable, just not particularly bright, around 21°C.
Frequently asked questions about weather in Walla Walla
How warm does it get in Walla Walla?
The warmest month in Walla Walla is July, with average high temperatures of 31°C. The average temperature during this period is around 23°C.
How cold does it get in Walla Walla?
The coldest month in Walla Walla is February, 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 Walla Walla?
The wettest month in Walla Walla is December, with an average of 99mm of precipitation.
What is the driest time of year in Walla Walla?
The driest month in Walla Walla is July, with an average of 4mm of precipitation.
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