Union County, IA Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.
County Weather Overview
This county weather page brings together forecast coverage for Union County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Union County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 31 to Jun 3, 2026
- Latest sync
- May 27, 2026 9:21 PM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Union County
Monday looks like the warmest upcoming period in Union County at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Sunday at about 12 mph SE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- May 27, 2026 9:21 PM CDT
- Coverage
- 4 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
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59.
Mostly sunny, with a high near 83.
Mostly clear, with a low around 57.
Sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Chance Showers And Thunderstorms
|
83°F |
12 mph
SE
|
|
Sunday Night
May 31
|
Slight Chance Showers And Thunderstorms
|
61°F |
5 to 9 mph
ESE
|
|
Monday
Jun 1
|
Slight Chance Showers And Thunderstorms
|
84°F |
5 to 8 mph
E
|
|
Monday Night
Jun 1
|
Slight Chance Showers And Thunderstorms
|
59°F |
7 mph
E
|
|
Tuesday
Jun 2
|
Mostly Sunny
|
83°F |
6 to 9 mph
E
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
57°F |
5 to 9 mph
SE
|
|
Wednesday
Jun 3
|
Sunny
|
82°F |
6 to 10 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Union County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Union County.
Largest mapped city population in this region: 7,660.
