Upland

Walla Walla County, California, United States

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Current Weather

17°

Mostly Clear

Feels Like: 17°

Min: 16°

Max: 27°

The next few hours will be overcast, with today reaching 27°C and dropping to 16°C. The coming days will be clear

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Hourly Forecast

16° 17° 18° 18° 18° 18° 19° 21° 23° 25° 26° 27° 27° 26° 25° 23° 21° 21° 20° 19° 19° 18° 18° 17°
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Today
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Daylight Hours

06:39

Sunrise

18:49

Sunset

12 hours 9 minutes of sunlight today

Moon

Waxing Crescent

12:15

Moonrise

21:19

Moonset

Daily Forecast

Today

16°
27°

Thursday

16°
26°

Friday

16°
27°

Saturday

17°
29°

Sunday

18°
29°

Monday

18°
27°

Tuesday

17°
29°

Wednesday

18°
30°

Thursday

17°
27°

Friday

18°
28°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

85% Humid
Low High

Weather in Upland today, September 16, 2026

Conditions in Upland on September 16, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. The morning sky stays heavily clouded, with cover near 100% around 04:00. Grey conditions set the early tone before any later change.

Expect highs of 27°C and cooler readings close to 16°C. Moisture in the air spans 44%-86%, with the highest values around 03:00. Airflow remains manageable, reaching about 5.0 km/h around 17:00.

Through the afternoon skies look more workable, with cloud near 22% around 23:00. Later outdoor plans have a clearer window than the morning may have suggested. Visibility holds near 16.0 km, though it can fall to 15.1 km. Sunrise is at 06:39 and sunset at 18:49, giving 12 hours 9 minutes of sunlight today.

Overall, Upland on September 16, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 27°C.

Frequently asked questions about weather in Upland

How warm does it get in Upland?

The warmest month in Upland is August, with average high temperatures of 31°C. The average temperature during this period is around 25°C.

How cold does it get in Upland?

The coldest month in Upland is January, with average low temperatures of 7°C. The average temperature during this period is around 12°C.

What is the wettest time of year in Upland?

The wettest month in Upland is January, with an average of 94mm of precipitation.

What is the driest time of year in Upland?

The driest month in Upland is July, with an average of 1mm of precipitation.

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Metric (°C, km/h)