Union

Walla Walla County, Missouri, United States

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Current Weather

28°

Overcast

Feels Like: 13°

Min: 24°

Max: 37°

The next few hours will be overcast, with today reaching 37°C and dropping to 9°C. The coming days will be light rain

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Hourly Forecast

26° 28° 31° 33° 35° 36° 37° 37° 29° 27° 27° 26° 25° 26° 26° 25° 25° 11° 10° 10° 10°
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Today
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Daylight Hours

06:52

Sunrise

19:03

Sunset

12 hours 11 minutes of sunlight today

Moon

Waxing Crescent

12:38

Moonrise

21:17

Moonset

Daily Forecast

Today

24°
37°

Thursday

25°

Friday

22°

Saturday

22°

Sunday

20°

Monday

19°

Tuesday

20°

Wednesday

20°

Thursday

36°

Friday

16°
24°

Air Quality Data Available

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UV Index

No protection needed
2 Low
Low Extreme

Humidity

76% Humid
Low High

Weather in Union today, September 16, 2026

Union looks cloudy on September 16, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Expect a grey start, with morning cloud around 100% by 09:00. Outdoor plans early on should not rely on bright skies.

The day peaks near 37°C and cools toward 24°C. Moisture in the air spans 38%-89%, with the highest values around 23:00. Expect gentle winds, highest near 17:00 at 7.2 km/h.

Through the afternoon cloud remains the main feature, with cover near 100% around 17:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 14.2 km, briefly nearer 2.1 km. Expect sunrise at 06:52, sunset at 19:03, and 12 hours 11 minutes of sunlight today overall.

The practical takeaway for Union on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 37°C.

Frequently asked questions about weather in Union

How warm does it get in Union?

The warmest month in Union is July, with average high temperatures of 31°C. The average temperature during this period is around 26°C.

How cold does it get in Union?

The coldest month in Union is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.

What is the wettest time of year in Union?

The wettest month in Union is May, with an average of 139mm of precipitation.

What is the driest time of year in Union?

The driest month in Union is December, with an average of 52mm of precipitation.

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Metric (°C, km/h)