Union, IA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union, IA in one place.
Sunny, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 21 mph.
Local Weather Overview
This forecast page for Union, IA 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 21, 2026 10:12 AM CDT.
The active forecast window currently covers Apr 22 to Apr 27, 2026 for Union, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 10:12 AM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Wednesday looks like the warmest upcoming period in Union at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Thursday at about 16 to 24 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 10:12 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 59. South wind around 15 mph, with gusts as high as 22 mph.
A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 75. South wind 16 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 65. Chance of precipitation is 40%.
Mostly clear, with a low around 42.
Mostly sunny, with a high near 64.
Partly cloudy, with a low around 41.
A chance of rain showers after 1pm. Partly sunny, with a high near 60. Chance of precipitation is 30%.
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 62. Chance of precipitation is 50%.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Sunny
|
80°F |
5 to 15 mph
SSE
|
|
Wednesday Night
Apr 22
|
Partly Cloudy
|
59°F |
15 mph
S
|
|
Thursday
Apr 23
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
75°F |
16 to 24 mph
S
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
48°F |
12 to 21 mph
SW
|
|
Friday
Apr 24
|
Slight Chance Showers And Thunderstorms
|
65°F |
15 mph
NW
|
|
Friday Night
Apr 24
|
Mostly Clear
|
42°F |
7 to 12 mph
N
|
|
Saturday
Apr 25
|
Mostly Sunny
|
64°F |
10 mph
NNE
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
41°F |
6 to 9 mph
NNE
|
|
Sunday
Apr 26
|
Partly Sunny then Chance Rain Showers
|
60°F |
7 to 13 mph
ENE
|
|
Sunday Night
Apr 26
|
Showers And Thunderstorms Likely
|
45°F |
12 mph
E
|
|
Monday
Apr 27
|
Chance Showers And Thunderstorms
|
62°F |
12 to 15 mph
E
|
|
Monday Night
Apr 27
|
Chance Showers And Thunderstorms
|
43°F |
10 to 14 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.