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Defiance, Iowa 51527 weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for Defiance, Iowa 51527. Always follow local warnings and emergency instructions.

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Weather guidance for your areaPlan with the complete forecast

Use current official weather information for Defiance, Iowa 51527 before making weather-sensitive plans.

Safety guides

Weather status

No active NWS alerts found for Defiance, Iowa 51527

Conditions can change quickly. Keep Wireless Emergency Alerts enabled and continue to monitor official information.

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What’s next

Hourly forecast

Defiance, Iowa 51527

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Defiance, Iowa 51527. Forecasts and alerts update from NOAA and the National Weather Service.

76°Mostly Cloudy3% rain
75°Mostly Cloudy5% rain
74°Partly Cloudy8% rain
71°Mostly Clear8% rain
68°Mostly Clear9% rain
66°Partly Cloudy6% rain
64°Patchy Fog10% rain
64°Mostly Cloudy9% rain

Next 24 hours

Rain Timeline

Highest chance 44%

Most likely around 4 AM. Expected type: Rain.

3%None
5%None
8%None
8%None
9%None
6%None
10%None
9%None
12%None
26%Rain
38%Rain
44%Rain
36%Rain
39%Rain
28%Rain
17%Rain
19%Rain
18%Rain
16%Rain
14%None
4%None
4%None
4%None
3%None

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

77°61°

Mostly Cloudy

Precipitation
44%
Wind
WSW 6 mph
Sunrise
6:39 AM
Sunset
8:11 PM

Mon

77°64°

Chance Rain Showers then Partly Sunny

Precipitation
39%
Wind
SSE 3 to 8 mph
Sunrise
6:40 AM
Sunset
8:10 PM

Tue

82°63°

Mostly Sunny

Precipitation
13%
Wind
SSW 5 mph
Sunrise
6:41 AM
Sunset
8:08 PM

Wed

82°59°

Sunny

Precipitation
11%
Wind
WNW 2 to 12 mph
Sunrise
6:42 AM
Sunset
8:07 PM

Thu

81°60°

Sunny

Precipitation
20%
Wind
NNW 0 to 3 mph
Sunrise
6:43 AM
Sunset
8:05 PM

Fri

81°64°

Chance Showers And Thunderstorms

Precipitation
54%
Wind
SSE 1 to 8 mph
Sunrise
6:44 AM
Sunset
8:03 PM

Sat

82°66°

Chance Showers And Thunderstorms

Precipitation
54%
Wind
SSE 7 to 12 mph
Sunrise
6:45 AM
Sunset
8:02 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel77°F
Good conditions for walking

Conditions look reasonable, but stay alert for quick weather changes.

WindSW9 mph
Best walk timeBetter weather window: 6 PM–8 PM

Walking: 7% average rain chance, near 75°F, with winds near 4 mph.

Official EPA AirNowLocal air qualityDefiance, Iowa 51527
View AQI +
More weather details
Wind gustsNot reported
Rain now3%next hour
Humidity65%current
UV indexCheckingEPA forecast

Wind impact: Light wind with little expected outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gustNot reported
Pressure30.08 in
Visibility10.0 mi
Peak rain chance44%
Dew point64°F
Active alertsNone

Official risk outlooks

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Official tropical weather

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