Decatur, OH Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, OH in one place.
A chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.
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: Apr 9, 2026 4:59 PM EDT.
The active forecast window currently covers Apr 13 to Apr 15, 2026 for Decatur, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 13 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 4:59 PM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Tuesday looks like the warmest upcoming period in Decatur at 86 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Monday at about 10 to 15 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 4:59 PM EDT
- Coverage
- 3 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
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
A chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Apr 13
|
Chance Rain Showers
|
80°F |
10 to 15 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
64°F |
7 to 12 mph
SW
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
86°F |
7 to 14 mph
SW
|
|
Tuesday Night
Apr 14
|
Slight Chance Showers And Thunderstorms
|
66°F |
7 to 12 mph
SW
|
|
Wednesday
Apr 15
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
84°F |
8 to 14 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
63°F |
6 to 13 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.