Union, CO Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union, CO in one place.
Mostly sunny, with a high near 79.
Local Weather Overview
This forecast page for Union, CO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 13, 2026 5:27 AM MDT.
The active forecast window currently covers Apr 16 to Apr 19, 2026 for Union, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 16 to Apr 19, 2026
- Latest sync
- Apr 13, 2026 5:27 AM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Thursday looks like the warmest upcoming period in Union at 79 degrees F.
Friday Night is the coolest period ahead with temperatures near 24 degrees F.
The strongest winds are forecast for Friday at about 23 to 29 mph N.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 13, 2026 5:27 AM MDT
- Coverage
- 4 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers between midnight and 3am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 36.
Rain and snow showers likely. Partly sunny, with a high near 56.
A chance of rain and snow showers. Mostly cloudy, with a low around 24. New snow accumulation of less than half an inch possible.
A slight chance of snow showers before noon. Mostly sunny, with a high near 57.
Mostly clear, with a low around 26.
Sunny, with a high near 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 16
|
Mostly Sunny
|
79°F |
7 to 14 mph
SSW
|
|
Thursday Night
Apr 16
|
Mostly Cloudy then Slight Chance Rain And Snow Showers
|
36°F |
17 to 22 mph
W
|
|
Friday
Apr 17
|
Rain And Snow Showers Likely
|
56°F |
23 to 29 mph
N
|
|
Friday Night
Apr 17
|
Chance Rain And Snow Showers
|
24°F |
10 to 25 mph
NNW
|
|
Saturday
Apr 18
|
Slight Chance Snow Showers then Mostly Sunny
|
57°F |
10 to 16 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
26°F |
8 to 13 mph
S
|
|
Sunday
Apr 19
|
Sunny
|
73°F |
10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.