Union County, IA Weather Forecast
County weather hub
Slight Chance Rain Showers
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of rain showers between 7am and 1pm. Partly sunny, with a high near 52. North northwest wind 15 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
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
- Oct 16 to Oct 20, 2026
- Latest sync
- Oct 14, 2026 4:18 PM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Union County
Tuesday looks like the warmest upcoming period in Union County at 72 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 15 to 23 mph NNW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Oct 14, 2026 4:18 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
Areas of frost after 3am. Mostly clear, with a low around 34.
Areas of frost before 9am. Sunny, with a high near 59.
Clear, with a low around 41.
Sunny, with a high near 65.
Partly cloudy, with a low around 46.
Mostly sunny, with a high near 68.
Partly cloudy, with a low around 47.
Sunny, with a high near 72.
Mostly clear, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Slight Chance Rain Showers
|
52°F |
15 to 23 mph
NNW
|
|
Friday Night
Oct 16
|
Mostly Clear then Areas Of Frost
|
34°F |
1 to 13 mph
NNW
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
59°F |
1 to 9 mph
SW
|
|
Saturday Night
Oct 17
|
Clear
|
41°F |
10 mph
SSW
|
|
Sunday
Oct 18
|
Sunny
|
65°F |
10 to 17 mph
SSW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
46°F |
7 to 12 mph
SSW
|
|
Monday
Oct 19
|
Mostly Sunny
|
68°F |
6 to 9 mph
SSW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
47°F |
7 mph
S
|
|
Tuesday
Oct 20
|
Sunny
|
72°F |
6 to 12 mph
S
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
53°F |
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.
