Decatur, IN Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, IN in one place.
Mostly cloudy, with a high near 69. South wind 0 to 5 mph.
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: Oct 31, 2026 5:15 PM EDT.
The active forecast window currently covers Nov 1 to Nov 6, 2026 for Decatur, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 1 to Nov 6, 2026
- Latest sync
- Oct 31, 2026 5:15 PM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Tuesday looks like the warmest upcoming period in Decatur at 74 degrees F.
Friday Night is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 31, 2026 5:15 PM EDT
- Coverage
- 6 days
- 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
Mostly cloudy, with a low around 51. Southeast wind around 5 mph.
Mostly cloudy, with a high near 66. South wind 5 to 10 mph.
Mostly cloudy, with a low around 55.
Partly sunny, with a high near 74.
A chance of rain showers after 7pm. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Rain showers likely before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
A chance of rain showers. Partly sunny, with a high near 66. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 47.
A chance of rain showers. Partly sunny, with a high near 63.
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Nov 1
|
Mostly Cloudy
|
69°F |
0 to 5 mph
S
|
|
Sunday Night
Nov 1
|
Mostly Cloudy
|
51°F |
5 mph
SE
|
|
Monday
Nov 2
|
Mostly Cloudy
|
66°F |
5 to 10 mph
S
|
|
Monday Night
Nov 2
|
Mostly Cloudy
|
55°F |
10 mph
S
|
|
Tuesday
Nov 3
|
Partly Sunny
|
74°F |
10 to 15 mph
S
|
|
Tuesday Night
Nov 3
|
Chance Rain Showers
|
59°F |
10 to 15 mph
S
|
|
Wednesday
Nov 4
|
Rain Showers Likely
|
69°F |
10 to 15 mph
S
|
|
Wednesday Night
Nov 4
|
Showers And Thunderstorms Likely
|
51°F |
5 to 10 mph
S
|
|
Thursday
Nov 5
|
Chance Rain Showers
|
66°F |
5 mph
S
|
|
Thursday Night
Nov 5
|
Chance Rain Showers
|
47°F |
5 mph
NE
|
|
Friday
Nov 6
|
Chance Rain Showers
|
63°F |
5 to 10 mph
N
|
|
Friday Night
Nov 6
|
Slight Chance Rain Showers
|
43°F |
5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.
