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 87. Southwest wind 6 to 12 mph.
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: Oct 12, 2026 4:47 AM EDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Decatur, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 4:47 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Tuesday looks like the warmest upcoming period in Decatur at 87 degrees F.
Saturday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Friday at about 13 to 17 mph W.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 4:47 AM EDT
- Coverage
- 6 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 66. Southwest wind 5 to 9 mph.
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
A chance of rain showers before 2pm. Partly sunny, with a high near 69. Chance of precipitation is 40%.
Partly cloudy, with a low around 37.
Sunny, with a high near 56.
Mostly clear, with a low around 33.
Sunny, with a high near 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
87°F |
6 to 12 mph
SW
|
|
Tuesday Night
Oct 13
|
Mostly Clear
|
66°F |
5 to 9 mph
SW
|
|
Wednesday
Oct 14
|
Mostly Sunny then Showers And Thunderstorms Likely
|
85°F |
5 to 8 mph
SW
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
65°F |
2 to 7 mph
NW
|
|
Thursday
Oct 15
|
Chance Rain Showers
|
75°F |
5 to 8 mph
SE
|
|
Thursday Night
Oct 15
|
Chance Showers And Thunderstorms
|
60°F |
6 to 12 mph
SW
|
|
Friday
Oct 16
|
Chance Rain Showers
|
69°F |
13 to 17 mph
W
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
37°F |
10 to 17 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
56°F |
9 to 13 mph
N
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
33°F |
1 to 7 mph
NE
|
|
Sunday
Oct 18
|
Sunny
|
65°F |
1 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.