Union County, IA Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Cloudy, with a high near 67. Southeast wind 12 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
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
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 5:50 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 81 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Sunday at about 21 to 26 mph SSW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 5:50 PM CDT
- Coverage
- 5 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 chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
A slight chance of rain showers before 7am. Partly sunny, with a high near 81.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
A chance of rain showers. Partly sunny, with a high near 70. Chance of precipitation is 50%.
A chance of rain showers before 1am. Partly cloudy, with a low around 48.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Showers And Thunderstorms Likely
|
67°F |
12 to 18 mph
SE
|
|
Saturday Night
Apr 11
|
Chance Showers And Thunderstorms
|
59°F |
15 to 20 mph
S
|
|
Sunday
Apr 12
|
Showers And Thunderstorms Likely
|
71°F |
21 to 26 mph
SSW
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
60°F |
14 to 21 mph
SSW
|
|
Monday
Apr 13
|
Slight Chance Rain Showers then Partly Sunny
|
81°F |
14 to 21 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
62°F |
17 mph
SSW
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
80°F |
14 to 20 mph
SSW
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
50°F |
14 to 17 mph
SSW
|
|
Wednesday
Apr 15
|
Chance Rain Showers
|
70°F |
14 to 17 mph
WSW
|
|
Wednesday Night
Apr 15
|
Chance Rain Showers
|
48°F |
9 to 13 mph
SW
|
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.
