Union, Iowa 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Partly Cloudy 86°F 30°C Heat Index: 97°F	Observed at: Union, IA	Elevation: 866 ft | 264 m
	Last Updated: July 26, 7:30 PM Timezone: GMT -5/-4
	Sky Conditions: Partly Cloudy	Temperature: 86°F | 30°C
	Pressure: 28.65 in | 970.2 mb	Dewpoint: 77°F | 25°C
	Humidity: 75%	Wind: SE 6 mph | SE 10 kph
	Feels Like: 95°F | 35°C	Visibility: 41.6 mi | 66.9 km
	Lat/Long: 42.43 | -93.05	Sunrise: 5:58 AM   Sunset: 8:38 PM

7 Day Graphical Forecast

Valid: 9:43 AM 7/28/2026

Today Overcast 93 |75 °F 34 |24 °C 31% Chance Precipitation Monday Overcast 101 |77 °F 38 |25 °C 7% Chance Precipitation Tuesday Heavy Drizzle 85 |72 °F 29 |22 °C 3% Chance Precipitation Wednesday Light Drizzle 86 |68 °F 30 |20 °C 1% Chance Precipitation Thursday Heavy Showers 84 |67 °F 29 |19 °C 17% Chance Precipitation Friday Heavy Showers 80 |66 °F 26 |19 °C 54% Chance Precipitation Saturday Partly Cloudy 80 |62 °F 27 |17 °C 14% Chance Precipitation

7 Hour Graphical Forecast

Valid: 9:43 AM 7/28/2026

9 AM Mostly Clear 77 °F 1% Chance Precipitation

10 AM Clear 82 °F 1% Chance Precipitation

11 AM Overcast 85 °F 1% Chance Precipitation

12 PM Partly Cloudy 83 °F 1% Chance Precipitation

1 PM Overcast 82 °F 1% Chance Precipitation

2 PM Partly Cloudy 83 °F 1% Chance Precipitation

3 PM Overcast 85 °F 1% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Union, IA - (Fahrenheit & Celsius) Valid: 9:43 AM 7/28/2026 Today Overcast with a high near 93°F [34°C]. S wind to around 12 mph [20 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 77°F [25°C] with humidity of 98%. Pressure around 28.65 in [970.2 mb]. UV Index: 7.3. Chance of precipitation 31% with QPF of 0.00 in [0.0 mm]. Tonight Overcast with a low around 75°F [24°C]. S wind to around 12 mph [20 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 31% with QPF of 0.00 in [0.0 mm]. Monday Overcast with a high near 101°F [38°C]. WNW wind to around 14 mph [23 kph], with gusts to near 25 mph [40 kph]. Dewpoint near 77°F [25°C] with humidity of 92%. Pressure around 28.65 in [970.2 mb]. UV Index: 7.6. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Monday Night Overcast with a low around 77°F [25°C]. WNW wind to around 14 mph [23 kph], with gusts to near 25 mph [40 kph]. Chance of precipitation 7% with QPF of 0.00 in [0.0 mm]. Tuesday Heavy Drizzle with a high near 85°F [29°C]. E wind to around 11 mph [17 kph], with gusts to near 23 mph [37 kph]. Dewpoint near 77°F [25°C] with humidity of 95%. Pressure around 28.65 in [970.2 mb]. UV Index: 6. Chance of precipitation 3% with QPF of 0.08 in [2.1 mm]. Tuesday Night Heavy Drizzle with a low around 72°F [22°C]. E wind to around 11 mph [17 kph], with gusts to near 23 mph [37 kph]. Chance of precipitation 3% with QPF of 0.08 in [2.1 mm]. Wednesday Light Drizzle with a high near 86°F [30°C]. SSE wind to around 13 mph [20 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 77°F [25°C] with humidity of 98%. Pressure around 28.65 in [970.2 mb]. UV Index: 7.5. Chance of precipitation 1% with QPF of 0.00 in [0.1 mm]. Wednesday Night Light Drizzle with a low around 68°F [20°C]. SSE wind to around 13 mph [20 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 1% with QPF of 0.00 in [0.1 mm]. Thursday Heavy Showers with a high near 84°F [29°C]. SE wind to around 17 mph [28 kph], with gusts to near 34 mph [55 kph]. Dewpoint near 77°F [25°C] with humidity of 98%. Pressure around 28.65 in [970.2 mb]. UV Index: 5.75. Chance of precipitation 17% with QPF of 1.13 in [28.7 mm]. Thursday Night Heavy Showers with a low around 67°F [19°C]. SE wind to around 17 mph [28 kph], with gusts to near 34 mph [55 kph]. Chance of precipitation 17% with QPF of 1.13 in [28.7 mm]. Friday Heavy Showers with a high near 80°F [26°C]. NE wind to around 16 mph [26 kph], with gusts to near 26 mph [42 kph]. Dewpoint near 77°F [25°C] with humidity of 99%. Pressure around 28.65 in [970.2 mb]. UV Index: 5.8. Chance of precipitation 54% with QPF of 0.65 in [16.4 mm]. Friday Night Heavy Showers with a low around 66°F [19°C]. NE wind to around 16 mph [26 kph], with gusts to near 26 mph [42 kph]. Chance of precipitation 54% with QPF of 0.65 in [16.4 mm]. Saturday Partly Cloudy with a high near 80°F [27°C]. ENE wind to around 9 mph [15 kph], with gusts to near 16 mph [26 kph]. Dewpoint near 77°F [25°C] with humidity of 99%. Pressure around 28.65 in [970.2 mb]. UV Index: 7.25. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm]. Saturday Night Partly Cloudy with a low around 62°F [17°C]. ENE wind to around 9 mph [15 kph], with gusts to near 16 mph [26 kph]. Chance of precipitation 14% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Union, IA

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 2.1 mm | 0.08 in

Tuesday Night: 2.1 mm | 0.08 in

Wednesday: 0.1 mm | 0.00 in

Wednesday Night: 0.1 mm | 0.00 in

Thursday: 28.7 mm | 1.13 in

Thursday Night: 28.7 mm | 1.13 in

Friday: 16.4 mm | 0.65 in

Friday Night: 16.4 mm | 0.65 in

Saturday: 0.0 mm | 0.00 in

Saturday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Union, IA

Today: S @ 20 kph | 12 mph

Tonight: S @ 20 kph | 12 mph

Monday: WNW @ 23 kph | 14 mph

Monday Night: WNW @ 23 kph | 14 mph

Tuesday: E @ 17 kph | 11 mph

Tuesday Night: E @ 17 kph | 11 mph

Wednesday: SSE @ 20 kph | 13 mph

Wednesday Night: SSE @ 20 kph | 13 mph

Thursday: SE @ 28 kph | 17 mph

Thursday Night: SE @ 28 kph | 17 mph

Friday: NE @ 26 kph | 16 mph

Friday Night: NE @ 26 kph | 16 mph

Saturday: ENE @ 15 kph | 9 mph

Saturday Night: ENE @ 15 kph | 9 mph

7 Day and Night - Maximum Humidity Forecast for Union, IA

Today: 98 %

Tonight: 98 %

Monday: 92 %

Monday Night: 92 %

Tuesday: 95 %

Tuesday Night: 95 %

Wednesday: 98 %

Wednesday Night: 98 %

Thursday: 98 %

Thursday Night: 98 %

Friday: 99 %

Friday Night: 99 %

Saturday: 99 %

Saturday Night: 99 %

7 Day and Night - Snowfall Totals Forecast for Union, IA

Today: 0.0 cm | 0.00 in

Tonight: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

Wednesday: 0.0 cm | 0.00 in

Wednesday Night: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

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