10-day forecast for Union, CO: 63° to 103°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
103°
Best day: Tuesday, August 11
98° · 0.39 in
Worst day: Monday, August 17
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0999° / 69°0
Morning80°feels 79°
Afternoon95°feels 90°
Evening80°feels 80°
Overnight77°feels 76°
99 °
Union, Sunday, 9 August
Overcast. High 99°, low 69°.
Pressure29.74 inHg
Wind9.5 mph N
Humidity13%
Visibility6.2 mi
Dew point39°
Mon, 10102° / 66°0
Morning79°feels 79°
Afternoon101°feels 95°
Evening81°feels 80°
Overnight73°feels 72°
102 °
Union, Monday, 10 August
Overcast. High 102°, low 66°.
Pressure29.77 inHg
Wind10.1 mph N
Humidity14%
Visibility6.2 mi
Dew point40°
Tue, 11103° / 71°0
Morning79°feels 79°
Afternoon103°feels 98°
Evening78°feels 77°
Overnight73°feels 72°
103 °
Union, Tuesday, 11 August
Overcast. High 103°, low 71°.
Pressure29.74 inHg
Wind7.5 mph NE
Humidity11%
Visibility6.2 mi
Dew point36°
Wed, 12100° / 63°0.04
Morning73°feels 72°
Afternoon98°feels 95°
Evening94°feels 91°
Overnight67°feels 66°
100 °
Union, Wednesday, 12 August
Light rain. High 100°, low 63°.
Pressure29.77 inHg
Wind7.7 mph E
Humidity28%
Visibility6.2 mi
Dew point53°
Thu, 1383° / 63°0
Morning68°feels 69°
Afternoon81°feels 82°
Evening80°feels 80°
Overnight73°feels 73°
83 °
Union, Thursday, 13 August
Overcast. High 83°, low 63°.
Pressure29.91 inHg
Wind18.2 mph E
Humidity48%
Visibility—
Dew point57°
Fri, 1482° / 68°0.06
Morning70°feels 70°
Afternoon76°feels 76°
Evening78°feels 78°
Overnight70°feels 70°
82 °
Union, Friday, 14 August
Light rain. High 82°, low 68°.
Pressure30.03 inHg
Wind19.7 mph SE
Humidity55%
Visibility—
Dew point57°
Sat, 1596° / 65°0.04
Morning72°feels 72°
Afternoon90°feels 88°
Evening87°feels 86°
Overnight68°feels 68°
96 °
Union, Saturday, 15 August
Light rain. High 96°, low 65°.
Pressure29.94 inHg
Wind9.2 mph SE
Humidity32%
Visibility—
Dew point53°
Sun, 16101° / 67°0.02
Morning75°feels 74°
Afternoon95°feels 92°
Evening92°feels 88°
Overnight80°feels 79°
101 °
Union, Sunday, 16 August
Light rain. High 101°, low 67°.
Pressure29.94 inHg
Wind16.1 mph W
Humidity19%
Visibility—
Dew point44°
Mon, 1798° / 67°0.39
Morning78°feels 77°
Afternoon92°feels 90°
Evening87°feels 86°
Overnight68°feels 68°
98 °
Union, Monday, 17 August
Rain. High 98°, low 67°.
Pressure29.94 inHg
Wind17.1 mph SE
Humidity26%
Visibility—
Dew point50°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Union, CO around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.