Sulphur Springs, IN Weather & Growing Conditions
This Afternoon
68°F
Chance Light Rain
A chance of rain before 5pm. Cloudy. High near 68, with temperatures falling to around 65 in the afternoon. Southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Light Rain | 14 mph SW | 34% |
| Tonight | 46°F | Cloudy | 6 to 12 mph WSW | 8% |
| Thursday | 60°F | Partly Sunny | 8 to 14 mph SW | 1% |
| Thursday Night | 42°F | Chance Light Rain | 3 to 8 mph W | 28% |
| Friday | 53°F | Slight Chance Light Rain | 5 to 12 mph NW | 19% |
| Friday Night | 34°F | Slight Chance Light Rain then Mostly Cloudy | 5 to 10 mph NW | 17% |
| Saturday | 52°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 30°F | Partly Cloudy | 1 to 5 mph WNW | 0% |
| Sunday | 55°F | Sunny | 2 to 9 mph W | 1% |
| Sunday Night | 32°F | Mostly Clear | 2 to 6 mph W | 1% |
| Monday | 59°F | Sunny | 2 to 7 mph W | 0% |
| Monday Night | 36°F | Clear | 6 mph WSW | 0% |
| Tuesday | 62°F | Sunny | 7 mph W | 1% |
| Tuesday Night | 36°F | Mostly Clear | 3 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sulphur Springs, IN
Last spring frost
Apr 27
First fall frost
Oct 17
Growing season
173 days
Hardiness zone
6a
Explore more for Sulphur Springs, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, New Castle 3 Sw, In (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.