Union, IA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Union now
Loading the National Weather Service forecast…
Union weather by the hour
Union weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Union.
This week in Union
Sunrise, sunset and moon in Union
What is the weather usually like in Union?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 84°F average high
- Januarycoldest month · 9°F average low
- 37.8 inprecipitation per year · 961 mm
- 33.2 insnowfall per year · 84 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Union: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ELDORA, IA US (USC00132573), adjusted for the elevation of Union.
Union weather month by month
Sunrise and sunset in Union through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:36 AM | 5:06 PM | 9 h 30 min |
| February | 7:06 AM | 5:46 PM | 10 h 39 min |
| March | 7:22 AM | 7:20 PM | 11 h 57 min |
| April | 6:29 AM | 7:55 PM | 13 h 25 min |
| May | 5:49 AM | 8:28 PM | 14 h 39 min |
| June | 5:33 AM | 8:52 PM | 15 h 18 min |
| July | 5:47 AM | 8:48 PM | 15 h 0 min |
| August | 6:18 AM | 8:14 PM | 13 h 56 min |
| September | 6:51 AM | 7:23 PM | 12 h 32 min |
| October | 7:23 AM | 6:32 PM | 11 h 8 min |
| November | 7:01 AM | 4:52 PM | 9 h 50 min |
| December | 7:32 AM | 4:42 PM | 9 h 9 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Union?
Union has a hot-summer humid continental climate. The warmest month is July, with an average high of 84°F (29°C), and the coldest is January, with average lows of 9°F (-13°C).
It gets about 37.8 inches (961 mm) of precipitation a year. The wettest month is June and the driest is January. Snow is common: about 33 inches fall in an average year.
The best time to visit Union is June to September. At 942 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Union
Weather in towns near Union
Questions about the weather in Union
What is the hottest month in Union?
July, with an average high of 84°F (29°C).
What is the coldest month in Union?
January, with an average low of 9°F (-13°C).
How much does it rain in Union?
About 37.8 inches (961 mm) a year; the wettest month is June.
Does it snow in Union?
Yes, about 33 inches of snow fall in an average year.
When is the best time to visit Union?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Union have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Union in November?
Highs average 46°F and lows 26°F, with about 1.9 inches of precipitation.
What time is sunrise in Union?
Around 7:01 AM in mid-November, and sunset around 4:52 PM. Today’s exact times are shown above.
Where does this Union weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Union.
Last updated: