Sullivan County, IN Weather Forecast
County weather hub
Partly Sunny
Compare major city weather across Sullivan County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly sunny, with a high near 71. East wind around 7 mph.
County Weather Overview
This county weather page brings together forecast coverage for Sullivan County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Sullivan County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 5:34 PM EDT
- Forecast office
- IND
- Source
- NOAA / NWS
Daily Outlook
This Week in Sullivan County
Tuesday looks like the warmest upcoming period in Sullivan County at 84 degrees F.
Saturday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Sunday at about 8 to 16 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 5:34 PM EDT
- Coverage
- 5 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IND
- Radar station
- KVWX
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 57. Southeast wind 5 to 8 mph.
Partly sunny, with a high near 81. South wind 8 to 16 mph, with gusts as high as 29 mph.
A chance of rain and a slight chance of thunderstorms after 2am. Mostly cloudy, with a low around 64. South southwest wind 12 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
A chance of rain and a slight chance of thunderstorms before 2pm, then a chance of thunderstorms and a chance of rain. Mostly cloudy, with a high near 80. South southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
A chance of thunderstorms and a chance of rain. Mostly cloudy, with a low around 67. South southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
A chance of thunderstorms and a chance of rain. Partly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of thunderstorms and a chance of rain before 8pm, then a chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
A chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.
A chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Partly Sunny
|
71°F |
7 mph
E
|
|
Saturday Night
Apr 11
|
Mostly Cloudy
|
57°F |
5 to 8 mph
SE
|
|
Sunday
Apr 12
|
Partly Sunny
|
81°F |
8 to 16 mph
S
|
|
Sunday Night
Apr 12
|
Mostly Cloudy then Chance Light Rain
|
64°F |
12 to 15 mph
SSW
|
|
Monday
Apr 13
|
Chance Light Rain
|
80°F |
13 to 16 mph
SSW
|
|
Monday Night
Apr 13
|
Chance T-storms
|
67°F |
14 mph
SSW
|
|
Tuesday
Apr 14
|
Chance T-storms
|
84°F |
12 to 16 mph
SSW
|
|
Tuesday Night
Apr 14
|
Chance T-storms then Chance Light Rain
|
67°F |
14 mph
SSW
|
|
Wednesday
Apr 15
|
Chance Light Rain
|
81°F |
12 to 16 mph
SSW
|
|
Wednesday Night
Apr 15
|
Chance Light Rain
|
58°F |
8 to 14 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Sullivan County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Sullivan County.
Largest mapped city population in this region: 4,089.
