Sullivan, IN Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Sullivan, IN in one place.
Patchy fog and isolated rain showers. Mostly cloudy. Low around 71, with temperatures rising to around 73 overnight. North wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Sullivan, 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: Jul 19, 2026 5:38 AM EDT.
The active forecast window currently covers Jul 19 to Jul 25, 2026 for Sullivan, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 19 to Jul 25, 2026
- Latest sync
- Jul 19, 2026 5:38 AM EDT
- Forecast office
- IND
- Source
- NOAA / NWS
Daily Outlook
This Week in Sullivan
Tuesday looks like the warmest upcoming period in Sullivan at 92 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 12 mph WSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 19, 2026 5:38 AM EDT
- Coverage
- 7 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
Patchy fog before 7am, then areas of smoke. Sunny, with a high near 87. Northeast wind around 7 mph. New rainfall amounts less than a tenth of an inch possible.
Areas of smoke before 2am. Mostly clear. Low around 66, with temperatures rising to around 68 overnight. Northeast wind 2 to 7 mph.
Mostly sunny, with a high near 88. South southeast wind around 5 mph.
A chance of showers and thunderstorms between 2am and 5am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind 2 to 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 8am, then showers and thunderstorms likely. Mostly sunny, with a high near 92. West southwest wind 6 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely before 8pm. Mostly clear, with a low around 68. Northwest wind 5 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunny, with a high near 81. North wind 6 to 12 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 59. North northeast wind 3 to 10 mph.
Sunny, with a high near 80. Northeast wind around 6 mph.
Mostly clear, with a low around 61.
Mostly sunny, with a high near 82.
A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 19
|
Patchy Fog
|
71°F |
5 mph
N
|
|
Sunday
Jul 19
|
Patchy Fog then Areas Of Smoke
|
87°F |
7 mph
NE
|
|
Sunday Night
Jul 19
|
Areas Of Smoke
|
66°F |
2 to 7 mph
NE
|
|
Monday
Jul 20
|
Mostly Sunny
|
88°F |
5 mph
SSE
|
|
Monday Night
Jul 20
|
Partly Cloudy then Chance Showers And Thunderstorms
|
72°F |
2 to 6 mph
SSW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
92°F |
6 to 12 mph
WSW
|
|
Tuesday Night
Jul 21
|
Showers And Thunderstorms Likely then Mostly Clear
|
68°F |
5 to 12 mph
NW
|
|
Wednesday
Jul 22
|
Sunny
|
81°F |
6 to 12 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
59°F |
3 to 10 mph
NNE
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
6 mph
NE
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
61°F |
5 mph
ENE
|
|
Friday
Jul 24
|
Mostly Sunny
|
82°F |
5 mph
ESE
|
|
Friday Night
Jul 24
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
65°F |
5 mph
E
|
|
Saturday
Jul 25
|
Slight Chance Showers And Thunderstorms
|
86°F |
6 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sullivan.
