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Union, CO

48°F
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Union, CO Weather
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May 20 - June 3

Wed 5/20

57° /40°
64%
Mainly cloudy with a cool breeze; a brief afternoon shower or two

RealFeel®52°

RealFeel Shade™50°

Max UV Index3.0 (Moderate)

WindSSE 15 mph

Hours of Precipitation1

Hours of Rain1

Thu 5/21

59° /45°
70%
Breezy and cool with intervals of clouds and sunshine; an afternoon thunderstorm; thunderstorms can produce hail

RealFeel®57°

RealFeel Shade™52°

Max UV Index6.0 (High)

WindSE 16 mph

Hours of Precipitation1

Hours of Rain1

Fri 5/22

63° /44°
25%
Windy in the morning; remaining cool with times of clouds and sun

RealFeel®62°

RealFeel Shade™59°

Max UV Index6.0 (High)

WindNNW 15 mph

Sat 5/23

73° /49°
8%
Pleasant with more sun than clouds

RealFeel®84°

RealFeel Shade™71°

Max UV Index11.0 (Extreme)

WindSE 6 mph

Sun 5/24

83° /53°
7%
Partly sunny

RealFeel®92°

RealFeel Shade™81°

Max UV Index11.0 (Extreme)

WindSW 5 mph

Mon 5/25

84° /53°
55%
Partly sunny with a thunderstorm in spots in the afternoon

RealFeel®90°

RealFeel Shade™81°

Max UV Index11.0 (Extreme)

WindSSE 8 mph

Hours of Precipitation1

Hours of Rain1

Tue 5/26

79° /52°
61%
Windy with clouds and sun; a couple of afternoon showers and a thunderstorm

RealFeel®78°

RealFeel Shade™75°

Max UV Index11.0 (Extreme)

WindSSE 21 mph

Hours of Precipitation1

Hours of Rain1

Wed 5/27

75° /51°
57%
Cloudy with a couple of thunderstorms

RealFeel®74°

RealFeel Shade™72°

Max UV Index5.0 (Moderate)

WindSE 13 mph

Hours of Precipitation2.5

Hours of Rain2.5

Thu 5/28

77° /51°
77%
Plenty of clouds; rain and a thunderstorm in the morning followed by a couple of thunderstorms in the afternoon

RealFeel®79°

RealFeel Shade™76°

Max UV Index3.0 (Moderate)

WindENE 2 mph

Hours of Precipitation5

Hours of Rain5

Fri 5/29

78° /53°
1%
Sun through high clouds

RealFeel®77°

RealFeel Shade™75°

Max UV Index6.0 (High)

WindNNE 9 mph

Sat 5/30

83° /54°
2%
Sun and some clouds

RealFeel®85°

RealFeel Shade™79°

Max UV Index11.0 (Extreme)

WindE 8 mph

Sun 5/31

84° /55°
1%
Sunshine and a few clouds

RealFeel®84°

RealFeel Shade™80°

Max UV Index11.0 (Extreme)

WindSSE 14 mph

Mon 6/1

81° /56°
55%
Mostly sunny with a thunderstorm around in the afternoon

RealFeel®86°

RealFeel Shade™78°

Max UV Index11.0 (Extreme)

WindESE 6 mph

Hours of Precipitation1

Hours of Rain1

Tue 6/2

78° /52°
60%
Periods of rain

RealFeel®76°

RealFeel Shade™76°

Max UV Index3.0 (Moderate)

WindNNE 8 mph

Hours of Precipitation3

Hours of Rain3

Wed 6/3

75° /55°
25%
Mostly cloudy

RealFeel®75°

RealFeel Shade™72°

Max UV Index3.0 (Moderate)

WindNNW 9 mph

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Weather Near Union:

  • Boulder, CO
  • Denver, CO
  • Fort Collins, CO
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