Defiance County, OH Weather Forecast
County weather hub
Mostly Cloudy then Chance Showers And Thunderstorms
Compare major city weather across Defiance County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms between 1am and 3am, then showers and thunderstorms. Mostly cloudy. Low around 53, with temperatures rising to around 62 overnight. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Defiance County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Defiance County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 17 to Apr 24, 2026
- Latest sync
- Apr 18, 2026 12:27 AM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Defiance County
Thursday looks like the warmest upcoming period in Defiance County at 79 degrees F.
Sunday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Saturday at about 15 to 20 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 12:27 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- IWX
- Radar station
- KIWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before noon, then a chance of showers and thunderstorms. Mostly cloudy. High near 67, with temperatures falling to around 50 in the afternoon. Southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Partly cloudy, with a low around 36. West wind 10 to 15 mph, with gusts as high as 25 mph.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 53. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 29. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunny, with a high near 51.
Partly cloudy, with a low around 37.
Mostly sunny, with a high near 71.
Partly cloudy, with a low around 49.
Mostly sunny, with a high near 71.
Mostly clear, with a low around 48.
Sunny, with a high near 79.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 56.
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Apr 17
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
53°F |
10 to 15 mph
S
|
|
Saturday
Apr 18
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
67°F |
15 to 20 mph
SW
|
|
Saturday Night
Apr 18
|
Partly Cloudy
|
36°F |
10 to 15 mph
W
|
|
Sunday
Apr 19
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
53°F |
10 to 15 mph
W
|
|
Sunday Night
Apr 19
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
29°F |
5 to 15 mph
NW
|
|
Monday
Apr 20
|
Sunny
|
51°F |
5 mph
NW
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
37°F |
5 to 10 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
71°F |
10 to 15 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
49°F |
5 to 15 mph
W
|
|
Wednesday
Apr 22
|
Mostly Sunny
|
71°F |
5 to 10 mph
NE
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
48°F |
5 mph
E
|
|
Thursday
Apr 23
|
Sunny
|
79°F |
5 to 10 mph
SE
|
|
Thursday Night
Apr 23
|
Partly Cloudy then Slight Chance Rain Showers
|
56°F |
10 mph
SE
|
|
Friday
Apr 24
|
Chance Showers And Thunderstorms
|
78°F |
10 to 15 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Defiance County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Defiance County.
Largest mapped city population in this region: 16,482.
