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Current weather in Defiance is overcast clouds.

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

Now · 5:07 AM

Defiance Weather & Hourly Forecast

United States · Ohio · 43512

59°F

Overcast night

Feels like: 55°F

💧 Humidity 84% 🌡 Pressure 30.27 inHg 💨 Wind 10 mph 👁 Visibility 9.8 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:24 AM 🌇 Sunset 7:34 PM

Hourly Forecast for Defiance

Today

6:00 AM

Overcast night

59° 💧 0.017 in 💨 10 mph H 82%30.27 inHg

9:00 AM

Light rain

58° 💧 0.034 in 💨 12 mph H 91%30.30 inHg

12:00 PM

Light rain

60° 💧 0.005 in 💨 14 mph H 82%30.33 inHg

3:00 PM

Overcast

63° 💧 0.001 in 💨 14 mph H 70%30.30 inHg

6:00 PM

Overcast

63° 💧 None 💨 14 mph H 66%30.30 inHg

9:00 PM

Overcast night

61° 💧 None 💨 12 mph H 75%30.33 inHg

Tomorrow

12:00 AM

Overcast night

61° 💧 None 💨 9 mph H 68%30.33 inHg

3:00 AM

Clear night

56° 💧 None 💨 7 mph H 73%30.30 inHg

6:00 AM

Clear night

53° 💧 None 💨 8 mph H 81%30.33 inHg

9:00 AM

Sunny

55° 💧 None 💨 9 mph H 80%30.36 inHg

12:00 PM

Sunny

63° 💧 None 💨 11 mph H 64%30.36 inHg

3:00 PM

Sunny

67° 💧 None 💨 10 mph H 54%30.30 inHg

6:00 PM

Mostly sunny

64° 💧 None 💨 11 mph H 53%30.30 inHg

9:00 PM

Mostly cloudy night

56° 💧 None 💨 9 mph H 71%30.33 inHg

Friday

12:00 AM

Partly cloudy night

53° 💧 None 💨 7 mph H 84%30.30 inHg

3:00 AM

Overcast night

50° 💧 None 💨 4 mph H 92%30.30 inHg

Today

6:00 AM

Overcast night

59° 💧 0.000 in 💨 10 mph H 82%30.27 inHg

7:00 AM

Overcast night

59° 💧 0.002 in 💨 11 mph H 82%30.30 inHg

8:00 AM

Light rain

58° 💧 0.015 in 💨 12 mph H 87%30.30 inHg

9:00 AM

Light rain

58° 💧 0.016 in 💨 12 mph H 91%30.30 inHg

10:00 AM

Light rain

58° 💧 0.012 in 💨 12 mph H 92%30.33 inHg

11:00 AM

Light rain

59° 💧 0.006 in 💨 13 mph H 89%30.33 inHg

12:00 PM

Light rain

60° 💧 0.004 in 💨 14 mph H 82%30.33 inHg

1:00 PM

Overcast

62° 💧 0.001 in 💨 16 mph H 74%30.33 inHg

2:00 PM

Overcast

63° 💧 None 💨 14 mph H 73%30.30 inHg

3:00 PM

Overcast

63° 💧 None 💨 14 mph H 70%30.30 inHg

4:00 PM

Overcast

64° 💧 None 💨 14 mph H 70%30.30 inHg

5:00 PM

Overcast

63° 💧 0.001 in 💨 14 mph H 69%30.30 inHg

6:00 PM

Overcast

63° 💧 None 💨 14 mph H 66%30.30 inHg

7:00 PM

Overcast

61° 💧 None 💨 13 mph H 69%30.30 inHg

8:00 PM

Overcast night

61° 💧 None 💨 13 mph H 71%30.30 inHg

9:00 PM

Overcast night

61° 💧 None 💨 12 mph H 75%30.33 inHg

10:00 PM

Overcast night

61° 💧 None 💨 12 mph H 77%30.33 inHg

11:00 PM

Overcast night

61° 💧 None 💨 10 mph H 76%30.33 inHg

Tomorrow

12:00 AM

Overcast night

61° 💧 None 💨 9 mph H 68%30.33 inHg

1:00 AM

Clear night

59° 💧 None 💨 9 mph H 65%30.33 inHg

2:00 AM

Clear night

57° 💧 None 💨 7 mph H 69%30.30 inHg

3:00 AM

Clear night

56° 💧 None 💨 7 mph H 73%30.30 inHg

4:00 AM

Clear night

55° 💧 None 💨 8 mph H 76%30.33 inHg

5:00 AM

Clear night

54° 💧 None 💨 8 mph H 79%30.33 inHg

6:00 AM

Clear night

53° 💧 None 💨 8 mph H 81%30.33 inHg

7:00 AM

Clear night

53° 💧 None 💨 9 mph H 82%30.33 inHg

8:00 AM

Sunny

53° 💧 None 💨 9 mph H 83%30.36 inHg

9:00 AM

Sunny

55° 💧 None 💨 9 mph H 80%30.36 inHg

10:00 AM

Sunny

58° 💧 None 💨 10 mph H 73%30.36 inHg

11:00 AM

Sunny

61° 💧 None 💨 11 mph H 68%30.36 inHg

12:00 PM

Sunny

63° 💧 None 💨 11 mph H 64%30.36 inHg

1:00 PM

Sunny

65° 💧 None 💨 11 mph H 60%30.33 inHg

2:00 PM

Sunny

66° 💧 None 💨 10 mph H 57%30.33 inHg

3:00 PM

Sunny

67° 💧 None 💨 10 mph H 54%30.30 inHg

4:00 PM

Sunny

67° 💧 None 💨 9 mph H 53%30.30 inHg

5:00 PM

Sunny

66° 💧 None 💨 10 mph H 51%30.30 inHg

6:00 PM

Mostly sunny

64° 💧 None 💨 11 mph H 53%30.30 inHg

7:00 PM

Mostly sunny

61° 💧 None 💨 9 mph H 60%30.30 inHg

8:00 PM

Mostly clear night

57° 💧 None 💨 9 mph H 66%30.30 inHg

9:00 PM

Mostly cloudy night

56° 💧 None 💨 9 mph H 71%30.33 inHg

10:00 PM

Mostly cloudy night

54° 💧 None 💨 8 mph H 76%30.33 inHg

11:00 PM

Partly cloudy night

54° 💧 None 💨 7 mph H 81%30.33 inHg

Friday

12:00 AM

Partly cloudy night

53° 💧 None 💨 7 mph H 84%30.30 inHg

1:00 AM

Mostly cloudy night

52° 💧 None 💨 5 mph H 88%30.30 inHg

2:00 AM

Mostly cloudy night

51° 💧 None 💨 4 mph H 90%30.30 inHg

3:00 AM

Overcast night

50° 💧 None 💨 4 mph H 92%30.30 inHg

4:00 AM

Overcast night

50° 💧 None 💨 4 mph H 93%30.30 inHg

5:00 AM

Overcast night

50° 💧 None 💨 3 mph H 94%30.30 inHg

6:00 AM

Overcast night

49° 💧 None 💨 4 mph H 95%30.30 inHg

7:00 AM

Overcast night

49° 💧 None 💨 3 mph H 95%30.30 inHg

8:00 AM

Overcast

50° 💧 None 💨 4 mph H 96%30.33 inHg

9:00 AM

Overcast

53° 💧 None 💨 6 mph H 93%30.33 inHg

10:00 AM

Overcast

57° 💧 None 💨 6 mph H 86%30.33 inHg

11:00 AM

Mostly cloudy

61° 💧 None 💨 6 mph H 81%30.33 inHg

12:00 PM

Partly cloudy

64° 💧 None 💨 7 mph H 66%30.33 inHg

1:00 PM

Partly cloudy

66° 💧 None 💨 7 mph H 59%30.33 inHg

2:00 PM

Mostly cloudy

67° 💧 None 💨 7 mph H 58%30.30 inHg

3:00 PM

Partly cloudy

68° 💧 None 💨 7 mph H 59%30.27 inHg

4:00 PM

Partly cloudy

68° 💧 None 💨 7 mph H 59%30.24 inHg

5:00 PM

Mostly cloudy

67° 💧 None 💨 8 mph H 59%30.24 inHg

6:00 PM

Partly cloudy

66° 💧 None 💨 8 mph H 60%30.24 inHg

7:00 PM

Partly cloudy

62° 💧 None 💨 7 mph H 65%30.24 inHg

8:00 PM

Partly cloudy night

58° 💧 None 💨 7 mph H 72%30.24 inHg

11:00 PM

Clear night

53° 💧 None 💨 4 mph H 89%30.27 inHg

Saturday

2:00 AM

Clear night

51° 💧 None 💨 3 mph H 93%30.27 inHg

5:00 AM

Mostly clear night

49° 💧 None 💨 4 mph H 93%30.24 inHg

8:00 AM

Mostly cloudy

50° 💧 None 💨 5 mph H 92%30.27 inHg

11:00 AM

Sunny

63° 💧 None 💨 6 mph H 72%30.27 inHg

2:00 PM

Mostly sunny

70° 💧 None 💨 7 mph H 55%30.21 inHg

5:00 PM

Mostly sunny

70° 💧 None 💨 8 mph H 54%30.18 inHg

8:00 PM

Clear night

61° 💧 None 💨 5 mph H 75%30.18 inHg

11:00 PM

Clear night

56° 💧 None 💨 4 mph H 90%30.18 inHg

Sunday

2:00 AM

Clear night

53° 💧 None 💨 4 mph H 93%30.15 inHg

5:00 AM

Clear night

50° 💧 None 💨 3 mph H 95%30.15 inHg

8:00 AM

Sunny

50° 💧 None 💨 4 mph H 97%30.18 inHg

11:00 AM

Sunny

65° 💧 None 💨 4 mph H 71%30.15 inHg

2:00 PM

Mostly sunny

70° 💧 None 💨 4 mph H 52%30.12 inHg

5:00 PM

Sunny

70° 💧 None 💨 5 mph H 49%30.06 inHg

8:00 PM

Clear night

63° 💧 None 💨 1 mph H 68%30.06 inHg

11:00 PM

Clear night

56° 💧 None 💨 2 mph H 82%30.06 inHg

Monday

2:00 AM

Clear night

53° 💧 None 💨 4 mph H 90%30.03 inHg

5:00 AM

Clear night

51° 💧 None 💨 4 mph H 93%30.03 inHg

8:00 AM

Sunny

49° 💧 None 💨 3 mph H 98%30.06 inHg

11:00 AM

Mostly sunny

64° 💧 None 💨 2 mph H 75%30.03 inHg

2:00 PM

Sunny

70° 💧 None 💨 2 mph H 57%30.00 inHg

5:00 PM

Sunny

71° 💧 None 💨 2 mph H 54%29.97 inHg

8:00 PM

Clear night

63° 💧 None 💨 1 mph H 74%29.97 inHg

Tuesday

2:00 AM

Clear night

54° 💧 None 💨 4 mph H 90%29.97 inHg

8:00 AM

Mostly sunny

52° 💧 None 💨 5 mph H 94%30.00 inHg

2:00 PM

Sunny

73° 💧 None 💨 8 mph H 51%29.91 inHg

8:00 PM

Mostly cloudy night

68° 💧 None 💨 8 mph H 70%29.85 inHg

Wednesday

2:00 AM

Overcast night

67° 💧 None 💨 12 mph H 71%29.77 inHg

8:00 AM

Overcast

68° 💧 None 💨 12 mph H 87%29.74 inHg

2:00 PM

Light rain

73° 💧 None 💨 15 mph H 79%29.71 inHg

8:00 PM

Moderate rain

68° 💧 None 💨 11 mph H 93%29.71 inHg

Thursday

2:00 AM

Heavy rain

66° 💧 None 💨 9 mph H 94%29.65 inHg

8:00 AM

Moderate rain

66° 💧 None 💨 16 mph H 94%29.50 inHg

2:00 PM

Light rain

70° 💧 None 💨 18 mph H 72%29.59 inHg

8:00 PM

Mostly clear night

60° 💧 None 💨 11 mph H 80%29.74 inHg

Friday

2:00 AM

Mostly clear night

55° 💧 None 💨 10 mph H 88%29.80 inHg

8:00 AM

Mostly sunny

51° 💧 None 💨 10 mph H 93%29.88 inHg

2:00 PM

Light rain

59° 💧 None 💨 12 mph H 62%29.94 inHg

8:00 PM

Partly cloudy night

55° 💧 None 💨 9 mph H 67%30.03 inHg

Saturday

2:00 AM

Mostly clear night

48° 💧 None 💨 4 mph H 88%30.09 inHg

8:00 AM

Overcast

49° 💧 None 💨 4 mph H 88%30.15 inHg

2:00 PM

Overcast

58° 💧 None 💨 7 mph H 57%30.18 inHg

8:00 PM

Partly cloudy night

54° 💧 None 💨 5 mph H 64%30.21 inHg

Sunday

2:00 AM

Clear night

46° 💧 None 💨 1 mph H 85%30.24 inHg

8:00 AM

Mostly cloudy

42° 💧 None 💨 2 mph H 95%30.30 inHg

2:00 PM

Partly cloudy

62° 💧 None 💨 6 mph H 47%30.27 inHg

8:00 PM

Partly cloudy night

56° 💧 None 💨 3 mph H 69%30.21 inHg

Monday

2:00 AM

Mostly cloudy night

49° 💧 None 💨 6 mph H 74%30.21 inHg

8:00 AM

Mostly cloudy

50° 💧 None 💨 8 mph H 77%30.21 inHg

2:00 PM

Overcast

66° 💧 None 💨 10 mph H 50%30.15 inHg

8:00 PM

Mostly clear night

60° 💧 None 💨 7 mph H 73%30.09 inHg

Tuesday

2:00 AM

Overcast night

60° 💧 None 💨 11 mph H 78%30.03 inHg

8:00 AM

Sunny

59° 💧 None 💨 13 mph H 84%29.97 inHg

2:00 PM

Partly cloudy

73° 💧 None 💨 16 mph H 66%29.88 inHg

8:00 PM

Clear night

65° 💧 None 💨 11 mph H 82%29.88 inHg

Wednesday

2:00 AM

Clear night

52° 💧 None 💨 7 mph H 78%29.94 inHg

8:00 AM

Mostly cloudy

48° 💧 None 💨 8 mph H 76%29.97 inHg

2:00 PM

Partly cloudy

58° 💧 None 💨 15 mph H 49%29.97 inHg

8:00 PM

Partly cloudy night

48° 💧 None 💨 12 mph H 86%29.97 inHg

In Defiance and, more broadly, across the state of Ohio: This morning, mostly cloudy skies will set a subdued tone, with temperatures starting in the mid-50s to low 60s. Winds from the northeast will be moderate, reaching up to 13 mph, with gusts up to 23 mph. As the day progresses into the afternoon, temperatures will climb into the upper 60s. Rain is highly likely, with total accumulations around 0.62 inches. Expect the rain to be steady at times, accompanied by gusty northeast winds. Overall, the weather will be quite unsettled, so plans should account for the likelihood of rain and breezy conditions.

15-Day Weather Outlook for Defiance

TomorrowTomorrow

Overcast 67°/53° 💧 None 💨 11 mph

Friday, Sep 25Fri Sep 25

Partly cloudy 68°/49° 💧 0.067 in 💨 8 mph

Saturday, Sep 26Sat Sep 26

Mostly cloudy 70°/49° 💧 0.001 in 💨 8 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 70°/50° 💧 None 💨 5 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 71°/49° 💧 None 💨 4 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 73°/52° 💧 None 💨 8 mph

Wednesday, Sep 30Wed Sep 30

Moderate rain 73°/67° 💧 0.229 in 💨 15 mph

Thursday, Oct 1Thu Oct 1

Heavy rain 70°/60° 💧 2.149 in 💨 18 mph

Friday, Oct 2Fri Oct 2

Light rain 59°/51° 💧 0.049 in 💨 12 mph

Saturday, Oct 3Sat Oct 3

Overcast 58°/48° 💧 0.010 in 💨 7 mph

Sunday, Oct 4Sun Oct 4

Mostly cloudy 62°/42° 💧 None 💨 6 mph

Monday, Oct 5Mon Oct 5

Mostly cloudy 66°/49° 💧 None 💨 10 mph

Tuesday, Oct 6Tue Oct 6

Overcast 73°/59° 💧 0.016 in 💨 16 mph

Wednesday, Oct 7Wed Oct 7

Partly cloudy 58°/48° 💧 0.065 in 💨 15 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 AM

PM2.5 Fine particles Good 2,2µg/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 2,6µg/m³

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

O₃ Ozone Good 56,3µg/m³

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

NO₂ Nitrogen dioxide Good 3,0µg/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 1,0Low 😊Good

Tomorrow UV 5,5Moderate 🙂Fair

Friday UV 5,5Moderate 😐Moderate

Saturday UV 5,4Moderate 😐Moderate

Sunday UV 5,0Moderate 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,0 9:00 AMUV 0,1 10:00 AMUV 0,2 11:00 AMUV 0,3 12:00 PMUV 0,5 1:00 PMUV 1,0 2:00 PMUV 0,5 3:00 PMUV 0,4 4:00 PMUV 0,3 5:00 PMUV 0,2 6:00 PMUV 0,1

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, OHIO

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

28/100Best-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 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 60° 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 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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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.

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Forecast data for Defiance were last refreshed today at 5:07 AM. The current forecast period extends through 25/09/2026 at 3:00 AM. 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.