Decatur, IN Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, IN in one place.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
Local Weather Overview
This forecast page for Decatur, IN 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 4:23 PM EDT.
The active forecast window currently covers Apr 15, 2026 for Decatur, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15, 2026
- Latest sync
- Apr 9, 2026 4:23 PM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Wednesday looks like the warmest upcoming period in Decatur at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Wednesday at about 15 to 20 mph SW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 4:23 PM EDT
- Coverage
- 1 day
- Time zone
- America/Indiana/Indianapolis
- 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
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 15
|
Chance Rain Showers
|
74°F |
15 to 20 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
52°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.
