Decatur, OH Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, OH in one place.
Sunny, with a high near 90.
Local Weather Overview
This forecast page for Decatur, OH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 12, 2026 4:14 AM EDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Decatur, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 4:14 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Wednesday looks like the warmest upcoming period in Decatur at 92 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Saturday at about 3 to 9 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 4:14 AM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KILN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 69.
Sunny, with a high near 92.
Mostly clear, with a low around 72.
Sunny, with a high near 91.
Mostly clear, with a low around 72.
A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
90°F |
5 mph
E
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
69°F |
2 mph
NE
|
|
Wednesday
Jul 15
|
Sunny
|
92°F |
0 to 3 mph
W
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
72°F |
2 mph
W
|
|
Thursday
Jul 16
|
Sunny
|
91°F |
2 to 6 mph
W
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
72°F |
5 mph
W
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
90°F |
2 to 7 mph
W
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
70°F |
2 to 6 mph
W
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
89°F |
3 to 9 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.