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Union Weather Warning NWS WEATHER ALERT FOR THE UNION, IA AREA - FLOOD WATCH Issued: 819 PM CDT Sun Sep 13 2026 Union Weather Warning

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Union, IA Weather - Hour by Hour Forecast

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Union, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 56°F13°C, dew point 55°F13°C, humidity 96%. Wind direction is E at 5 mph8 km/h with visibility of 10 mi16 km. Barometric pressure is 30.18 in1022 mb.
Rest of Tonight - Mostly cloudy. Near steady temperature in the mid 50s. East winds 5 to 10 mph... Full Forecast
Monday - Mostly cloudy with showers likely with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers.. Full Forecast

Union Hourly Weather

24 Hour Forecast Scroll
Mon, Sep 14
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Union, IA Hourly Weather - Cloudy - 3:00 AM Union, IA Hourly Weather - Cloudy - 4:00 AM Union, IA Hourly Weather - Cloudy - 5:00 AM Union, IA Hourly Weather - Cloudy - 6:00 AM Union, IA Hourly Weather - Cloudy - 7:00 AM Union, IA Hourly Weather - Cloudy - 8:00 AM Union, IA Hourly Weather - Cloudy - 9:00 AM Union, IA Hourly Weather - Cloudy - 10:00 AM Union, IA Hourly Weather - Cloudy - 11:00 AM Union, IA Hourly Weather - Cloudy - 12:00 PM Union, IA Hourly Weather - Cloudy - 1:00 PM Union, IA Hourly Weather - Cloudy - 2:00 PM Union, IA Hourly Weather - Partly Cloudy - 3:00 PM Union, IA Hourly Weather - Partly Cloudy - 4:00 PM Union, IA Hourly Weather - Partly Cloudy - 5:00 PM Union, IA Hourly Weather - Cloudy - 6:00 PM Union, IA Hourly Weather - Cloudy - 7:00 PM Union, IA Hourly Weather - Cloudy - 8:00 PM Union, IA Hourly Weather - Cloudy - 9:00 PM Union, IA Hourly Weather - Cloudy - 10:00 PM Union, IA Hourly Weather - Cloudy - 11:00 PM Union, IA Hourly Weather - Cloudy - 12:00 AM Union, IA Hourly Weather - Cloudy - 1:00 AM Union, IA Hourly Weather - Cloudy - 2:00 AM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
55°F13°C 54°F12°C 53°F12°C 53°F12°C 52°F11°C 55°F13°C 58°F14°C 61°F16°C 63°F17°C 65°F18°C 67°F19°C 68°F20°C 70°F21°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 67°F19°C
- - - - - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain
0% 0% 0% 0% 0% 43% 43% 43% 43% 43% 43% 35% 35% 35% 35% 35% 35% 66% 66% 66% 66% 66% 66% 77%
53°F12°C 52°F11°C 51°F11°C 51°F11°C 50°F10°C 51°F11°C 52°F11°C 53°F12°C 54°F12°C 54°F12°C 55°F13°C 56°F13°C 57°F14°C 58°F14°C 59°F15°C 61°F16°C 62°F17°C 62°F17°C 63°F17°C 63°F17°C 63°F17°C 63°F17°C 63°F17°C 63°F17°C
93% 93% 93% 93% 93% 86% 80% 75% 72% 68% 65% 66% 63% 64% 66% 71% 73% 76% 79% 81% 81% 84% 84% 87%
E E E ESE ESE SE SE SE SE SE SE SE SSE SSE SSE SSE SSE SSE SSE SSE SSE S S S
8 mph 8 mph 8 mph 10 mph 10 mph 10 mph 15 mph 15 mph 15 mph 20 mph 20 mph 20 mph 22 mph 22 mph 22 mph 15 mph 15 mph 15 mph 13 mph 13 mph 13 mph 8 mph 8 mph 8 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km
Hour (CDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KMIW model statistics.

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Prob Precip % = Probability of Precipitation.

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POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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