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Current weather in Defiance is light rain.

Where can I find the hourly weather forecast for Defiance?

This page shows hourly weather forecast for Defiance, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Defiance updated regularly?

Weather data for Defiance is updated regularly with the latest available observations and forecasts.

Now · 5:37 PM

Defiance Weather & Hourly Forecast

United States · Iowa · 51527

62°F

Light rain

Feels like: 60°F

💧 Humidity 93% 🌡 Pressure 30.00 inHg 💨 Wind 10 mph 👁 Visibility 3.7 mi ☁ Clouds 100% ☀️ UV index 0.2 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Defiance

Today

6:00 PM

Light rain

62° 💧 0.034 in 💨 10 mph H 93%30.00 inHg

9:00 PM

Thunderstorms

61° 💧 0.815 in 💨 10 mph H 93%30.03 inHg

Tomorrow

12:00 AM

Thunderstorms

60° 💧 0.165 in 💨 7 mph H 94%30.06 inHg

3:00 AM

Light rain

60° 💧 0.014 in 💨 7 mph H 94%30.06 inHg

6:00 AM

Light rain

58° 💧 0.011 in 💨 9 mph H 94%30.09 inHg

9:00 AM

Overcast

58° 💧 0.010 in 💨 9 mph H 92%30.12 inHg

12:00 PM

Light rain

59° 💧 0.022 in 💨 9 mph H 88%30.12 inHg

3:00 PM

Light rain

60° 💧 0.010 in 💨 7 mph H 87%30.12 inHg

6:00 PM

Overcast

60° 💧 0.007 in 💨 9 mph H 85%30.12 inHg

9:00 PM

Overcast night

57° 💧 0.001 in 💨 9 mph H 92%30.15 inHg

Tuesday

12:00 AM

Overcast night

57° 💧 0.001 in 💨 8 mph H 89%30.21 inHg

3:00 AM

Overcast night

57° 💧 0.003 in 💨 7 mph H 92%30.21 inHg

6:00 AM

Overcast night

56° 💧 0.002 in 💨 8 mph H 92%30.24 inHg

9:00 AM

Overcast

56° 💧 0.010 in 💨 8 mph H 91%30.27 inHg

12:00 PM

Overcast

59° 💧 0.002 in 💨 9 mph H 82%30.30 inHg

3:00 PM

Overcast

62° 💧 0.004 in 💨 8 mph H 74%30.27 inHg

Today

6:00 PM

Light rain

62° 💧 0.014 in 💨 10 mph H 93%30.00 inHg

7:00 PM

Light rain

62° 💧 0.009 in 💨 10 mph H 93%30.00 inHg

8:00 PM

Light rain

61° 💧 0.011 in 💨 9 mph H 93%30.03 inHg

9:00 PM

Thunderstorms

61° 💧 0.137 in 💨 10 mph H 93%30.03 inHg

10:00 PM

Severe thunderstorms

61° 💧 0.373 in 💨 10 mph H 93%30.06 inHg

11:00 PM

Severe thunderstorms

60° 💧 0.305 in 💨 8 mph H 93%30.06 inHg

Tomorrow

12:00 AM

Thunderstorms

60° 💧 0.132 in 💨 7 mph H 94%30.06 inHg

1:00 AM

Light rain

60° 💧 0.023 in 💨 7 mph H 94%30.06 inHg

2:00 AM

Light rain

60° 💧 0.010 in 💨 7 mph H 94%30.06 inHg

3:00 AM

Light rain

60° 💧 0.004 in 💨 7 mph H 94%30.06 inHg

4:00 AM

Overcast night

60° 💧 0.003 in 💨 9 mph H 94%30.06 inHg

5:00 AM

Light rain

59° 💧 0.006 in 💨 9 mph H 93%30.06 inHg

6:00 AM

Light rain

58° 💧 0.008 in 💨 9 mph H 94%30.09 inHg

7:00 AM

Overcast night

58° 💧 0.002 in 💨 9 mph H 94%30.09 inHg

8:00 AM

Overcast

58° 💧 0.001 in 💨 9 mph H 94%30.12 inHg

9:00 AM

Overcast

58° 💧 0.001 in 💨 9 mph H 92%30.12 inHg

10:00 AM

Overcast

58° 💧 0.003 in 💨 9 mph H 91%30.12 inHg

11:00 AM

Light rain

59° 💧 0.006 in 💨 9 mph H 89%30.12 inHg

12:00 PM

Light rain

59° 💧 0.005 in 💨 9 mph H 88%30.12 inHg

1:00 PM

Light rain

60° 💧 0.008 in 💨 8 mph H 86%30.12 inHg

2:00 PM

Light rain

60° 💧 0.009 in 💨 6 mph H 86%30.12 inHg

3:00 PM

Light rain

60° 💧 0.005 in 💨 7 mph H 87%30.12 inHg

4:00 PM

Overcast

59° 💧 0.004 in 💨 9 mph H 88%30.12 inHg

5:00 PM

Mostly cloudy

59° 💧 0.001 in 💨 8 mph H 87%30.12 inHg

6:00 PM

Overcast

60° 💧 0.002 in 💨 9 mph H 85%30.12 inHg

7:00 PM

Overcast

59° 💧 0.004 in 💨 8 mph H 88%30.12 inHg

8:00 PM

Overcast night

58° 💧 0.001 in 💨 10 mph H 91%30.15 inHg

9:00 PM

Overcast night

57° 💧 0.000 in 💨 9 mph H 92%30.15 inHg

10:00 PM

Overcast night

57° 💧 0.001 in 💨 9 mph H 91%30.18 inHg

11:00 PM

Overcast night

57° 💧 0.000 in 💨 9 mph H 90%30.18 inHg

Tuesday

12:00 AM

Overcast night

57° 💧 0.000 in 💨 8 mph H 89%30.21 inHg

1:00 AM

Overcast night

57° 💧 0.000 in 💨 7 mph H 90%30.21 inHg

2:00 AM

Overcast night

57° 💧 0.001 in 💨 7 mph H 90%30.21 inHg

3:00 AM

Overcast night

57° 💧 0.001 in 💨 7 mph H 92%30.21 inHg

4:00 AM

Overcast night

57° 💧 0.001 in 💨 8 mph H 92%30.21 inHg

5:00 AM

Overcast night

56° 💧 0.001 in 💨 8 mph H 93%30.21 inHg

6:00 AM

Overcast night

56° 💧 0.000 in 💨 8 mph H 92%30.24 inHg

7:00 AM

Overcast night

56° 💧 0.001 in 💨 8 mph H 92%30.24 inHg

8:00 AM

Overcast

56° 💧 0.001 in 💨 8 mph H 92%30.27 inHg

9:00 AM

Overcast

56° 💧 0.004 in 💨 8 mph H 91%30.27 inHg

10:00 AM

Light rain

56° 💧 0.004 in 💨 9 mph H 89%30.30 inHg

11:00 AM

Overcast

57° 💧 0.002 in 💨 9 mph H 86%30.30 inHg

12:00 PM

Overcast

59° 💧 0.001 in 💨 9 mph H 82%30.30 inHg

1:00 PM

Overcast

60° 💧 0.000 in 💨 8 mph H 78%30.30 inHg

2:00 PM

Overcast

61° 💧 0.001 in 💨 8 mph H 76%30.27 inHg

3:00 PM

Overcast

62° 💧 0.001 in 💨 8 mph H 74%30.27 inHg

4:00 PM

Overcast

62° 💧 0.002 in 💨 9 mph H 74%30.24 inHg

5:00 PM

Overcast

62° 💧 0.001 in 💨 10 mph H 75%30.24 inHg

6:00 PM

Overcast

61° 💧 0.001 in 💨 9 mph H 75%30.24 inHg

7:00 PM

Overcast

60° 💧 None 💨 8 mph H 78%30.24 inHg

8:00 PM

Overcast night

60° 💧 None 💨 8 mph H 79%30.24 inHg

9:00 PM

Overcast night

59° 💧 None 💨 8 mph H 79%30.27 inHg

10:00 PM

Overcast night

59° 💧 None 💨 8 mph H 78%30.30 inHg

11:00 PM

Overcast night

58° 💧 None 💨 7 mph H 77%30.30 inHg

Wednesday

12:00 AM

Overcast night

57° 💧 None 💨 7 mph H 77%30.30 inHg

1:00 AM

Mostly cloudy night

56° 💧 None 💨 8 mph H 78%30.30 inHg

2:00 AM

Partly cloudy night

54° 💧 None 💨 9 mph H 81%30.30 inHg

3:00 AM

Mostly clear night

52° 💧 None 💨 8 mph H 85%30.33 inHg

4:00 AM

Partly cloudy night

51° 💧 None 💨 7 mph H 88%30.33 inHg

5:00 AM

Mostly cloudy night

51° 💧 None 💨 7 mph H 89%30.33 inHg

6:00 AM

Mostly cloudy night

51° 💧 None 💨 7 mph H 89%30.33 inHg

7:00 AM

Partly cloudy night

51° 💧 None 💨 8 mph H 91%30.33 inHg

10:00 AM

Mostly cloudy

57° 💧 None 💨 7 mph H 80%30.36 inHg

1:00 PM

Overcast

64° 💧 None 💨 8 mph H 63%30.33 inHg

4:00 PM

Overcast

66° 💧 None 💨 8 mph H 62%30.27 inHg

7:00 PM

Partly cloudy

63° 💧 None 💨 9 mph H 71%30.24 inHg

10:00 PM

Overcast night

58° 💧 None 💨 7 mph H 81%30.27 inHg

Thursday

1:00 AM

Partly cloudy night

57° 💧 None 💨 9 mph H 86%30.27 inHg

4:00 AM

Overcast night

56° 💧 None 💨 8 mph H 87%30.27 inHg

7:00 AM

Light rain

56° 💧 None 💨 9 mph H 88%30.27 inHg

10:00 AM

Moderate rain

57° 💧 None 💨 9 mph H 94%30.27 inHg

1:00 PM

Light rain

60° 💧 None 💨 7 mph H 95%30.27 inHg

4:00 PM

Overcast

64° 💧 None 💨 9 mph H 80%30.21 inHg

7:00 PM

Overcast

63° 💧 None 💨 8 mph H 84%30.21 inHg

10:00 PM

Overcast night

62° 💧 None 💨 7 mph H 85%30.24 inHg

Friday

1:00 AM

Overcast night

61° 💧 None 💨 7 mph H 87%30.24 inHg

4:00 AM

Overcast night

60° 💧 None 💨 7 mph H 86%30.21 inHg

7:00 AM

Overcast night

59° 💧 None 💨 7 mph H 87%30.24 inHg

10:00 AM

Overcast

61° 💧 None 💨 7 mph H 83%30.24 inHg

1:00 PM

Overcast

64° 💧 None 💨 8 mph H 80%30.24 inHg

4:00 PM

Overcast

66° 💧 None 💨 11 mph H 74%30.18 inHg

7:00 PM

Overcast

63° 💧 None 💨 8 mph H 85%30.15 inHg

10:00 PM

Overcast night

62° 💧 None 💨 11 mph H 86%30.15 inHg

Saturday

1:00 AM

Moderate rain

61° 💧 None 💨 11 mph H 92%30.12 inHg

4:00 AM

Moderate rain

61° 💧 None 💨 11 mph H 94%30.09 inHg

7:00 AM

Moderate rain

60° 💧 None 💨 10 mph H 95%30.06 inHg

1:00 PM

Light rain

63° 💧 None 💨 13 mph H 92%30.03 inHg

7:00 PM

Overcast

66° 💧 None 💨 9 mph H 84%29.97 inHg

Sunday

1:00 AM

Light rain

64° 💧 None 💨 9 mph H 92%30.00 inHg

7:00 AM

Mostly clear night

60° 💧 None 💨 8 mph H 97%29.97 inHg

1:00 PM

Mostly cloudy

74° 💧 None 💨 9 mph H 69%29.94 inHg

7:00 PM

Partly cloudy

70° 💧 None 💨 7 mph H 79%29.91 inHg

Monday

1:00 AM

Mostly cloudy night

61° 💧 None 💨 6 mph H 95%29.97 inHg

7:00 AM

Mostly cloudy night

58° 💧 None 💨 8 mph H 92%29.91 inHg

1:00 PM

Sunny

73° 💧 None 💨 10 mph H 64%29.85 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 11 mph H 77%29.74 inHg

Tuesday

1:00 AM

Moderate rain

64° 💧 None 💨 5 mph H 92%29.74 inHg

7:00 AM

Light rain

61° 💧 None 💨 6 mph H 96%29.62 inHg

1:00 PM

Overcast

66° 💧 None 💨 18 mph H 80%29.59 inHg

7:00 PM

Moderate rain

59° 💧 None 💨 21 mph H 90%29.62 inHg

Wednesday

1:00 AM

Overcast night

59° 💧 None 💨 19 mph H 65%29.59 inHg

7:00 AM

Light rain

57° 💧 None 💨 20 mph H 92%29.62 inHg

1:00 PM

Overcast

63° 💧 None 💨 22 mph H 81%29.71 inHg

7:00 PM

Mostly cloudy

63° 💧 None 💨 16 mph H 83%29.77 inHg

Thursday

1:00 AM

Partly cloudy night

60° 💧 None 💨 13 mph H 92%29.80 inHg

7:00 AM

Mostly clear night

57° 💧 None 💨 11 mph H 95%29.83 inHg

1:00 PM

Overcast

66° 💧 None 💨 12 mph H 74%29.83 inHg

7:00 PM

Mostly cloudy

64° 💧 None 💨 9 mph H 80%29.83 inHg

Friday

1:00 AM

Mostly cloudy night

60° 💧 None 💨 7 mph H 92%29.88 inHg

7:00 AM

Overcast night

61° 💧 None 💨 9 mph H 91%29.94 inHg

1:00 PM

Overcast

70° 💧 None 💨 10 mph H 65%29.97 inHg

7:00 PM

Mostly sunny

65° 💧 None 💨 6 mph H 77%29.94 inHg

Saturday

1:00 AM

Clear night

57° 💧 None 💨 3 mph H 93%29.94 inHg

7:00 AM

Clear night

52° 💧 None 💨 1 mph H 99%29.94 inHg

1:00 PM

Overcast

71° 💧 None 💨 7 mph H 63%29.88 inHg

7:00 PM

Mostly sunny

65° 💧 None 💨 6 mph H 75%29.77 inHg

Sunday

1:00 AM

Mostly clear night

59° 💧 None 💨 7 mph H 91%29.80 inHg

7:00 AM

Overcast night

59° 💧 None 💨 8 mph H 95%29.83 inHg

1:00 PM

Mostly sunny

66° 💧 None 💨 11 mph H 66%29.85 inHg

7:00 PM

Clear night

59° 💧 None 💨 6 mph H 64%29.85 inHg

Monday

1:00 AM

Clear night

49° 💧 None 💨 4 mph H 86%29.88 inHg

7:00 AM

Clear night

44° 💧 None 💨 3 mph H 95%29.83 inHg

In Defiance and, more broadly, across the state of Iowa: As the afternoon progresses into the evening, mostly cloudy skies will persist with temperatures remaining mild, ranging from 60 to 64 degrees Fahrenheit. There is a high likelihood of rain, with total accumulation expected to be around 0.56 inches. Northeast winds will be moderate, reaching up to 14 mph, with gusts potentially hitting 26 mph. Residents should be prepared for wet conditions and breezy weather as the night approaches.

15-Day Weather Outlook for Defiance

TomorrowTomorrow

Thunderstorms 60°/57° 💧 None 💨 10 mph

Tuesday, Sep 22Tue Sep 22

Overcast 62°/56° 💧 None 💨 10 mph

Wednesday, Sep 23Wed Sep 23

Overcast 66°/51° 💧 1.108 in 💨 9 mph

Thursday, Sep 24Thu Sep 24

Moderate rain 64°/56° 💧 0.282 in 💨 9 mph

Friday, Sep 25Fri Sep 25

Overcast 66°/59° 💧 0.016 in 💨 11 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 66°/60° 💧 0.986 in 💨 13 mph

Sunday, Sep 27Sun Sep 27

Light rain 74°/60° 💧 0.040 in 💨 9 mph

Monday, Sep 28Mon Sep 28

Mostly cloudy 73°/58° 💧 None 💨 11 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 66°/59° 💧 1.555 in 💨 21 mph

Wednesday, Sep 30Wed Sep 30

Light rain 63°/57° 💧 0.150 in 💨 22 mph

Thursday, Oct 1Thu Oct 1

Overcast 66°/57° 💧 0.056 in 💨 13 mph

Friday, Oct 2Fri Oct 2

Overcast 70°/60° 💧 0.005 in 💨 10 mph

Saturday, Oct 3Sat Oct 3

Overcast 71°/52° 💧 None 💨 7 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 66°/59° 💧 0.092 in 💨 11 mph

Monday, Oct 5Mon Oct 5

Sunny 49°/44° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Defiance

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Defiance

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 6:00 PM

PM2.5 Fine particles Good 1,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 1,7µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 41,1µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 3,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Defiance

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 1,4Low 😊Good

Tomorrow UV 0,8Low 😊Good

Tuesday UV 3,6Moderate 😊Good

Wednesday UV 4,2Moderate 🙂Fair

Thursday UV 0,7Low 🙂Fair

Friday UV 3,0Moderate —Unavailable

Saturday UV 6,0High —Unavailable

Hourly UV index today

6:00 PMUV 0,1 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Low UV risk

UV radiation will be low, although basic protection is still advisable during prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Defiance

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · DEFIANCE, IOWA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

20/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 100% Real hourly forecast for the best viewing hour.

☾ Moonlight 72% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 84° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Defiance were last refreshed today at 5:37 PM. The current forecast period extends through 22/09/2026 at 3:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.