Decatur, IN Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Decatur, IN in one place.
Rain showers likely before 11am, then a slight chance of showers and thunderstorms between 11am and noon, then showers and thunderstorms likely between noon and 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms between 3pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Southwest wind 10 to 15 mph. Chance of precipitation is 80%.
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: Jun 8, 2026 8:54 AM EDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Decatur, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 8:54 AM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Decatur
Wednesday looks like the warmest upcoming period in Decatur at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph SW.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 8:54 AM 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
A chance of showers and thunderstorms between 8pm and 2am, then showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms before 11am, then a chance of showers and thunderstorms between 11am and 2pm. Partly sunny, with a high near 91. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Showers and thunderstorms likely before 11pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 50%.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
A slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 64.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
85°F |
10 to 15 mph
SW
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms
|
68°F |
5 to 10 mph
SW
|
|
Wednesday
Jun 10
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
91°F |
10 to 15 mph
SW
|
|
Wednesday Night
Jun 10
|
Partly Cloudy then Chance Showers And Thunderstorms
|
71°F |
10 to 15 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
90°F |
15 mph
SW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms Likely
|
68°F |
10 to 15 mph
SW
|
|
Friday
Jun 12
|
Chance Showers And Thunderstorms
|
86°F |
10 mph
W
|
|
Friday Night
Jun 12
|
Partly Cloudy then Slight Chance Rain Showers
|
63°F |
0 to 10 mph
W
|
|
Saturday
Jun 13
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
86°F |
5 to 10 mph
SW
|
|
Saturday Night
Jun 13
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
64°F |
5 to 10 mph
SW
|
|
Sunday
Jun 14
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
5 to 10 mph
W
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
60°F |
5 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decatur.
