Sulphur Springs, IN Weather & Growing Conditions
Overnight
61°F
Mostly Cloudy
Mostly cloudy. Low around 61, with temperatures rising to around 66 overnight. East southeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Mostly Cloudy | 7 mph ESE | 4% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 8 mph S | 66% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 6 mph SSE | 38% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 3 to 7 mph WNW | 51% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 67% |
| Monday | 68°F | Showers And Thunderstorms Likely | 14 mph NE | 57% |
| Monday Night | 53°F | Chance Rain Showers | 9 to 15 mph NE | 49% |
| Tuesday | 68°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 13 mph NE | 19% |
| Tuesday Night | 54°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 to 14 mph NE | 34% |
| Wednesday | 68°F | Slight Chance Rain Showers | 8 mph NNE | 24% |
| Wednesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NNE | 23% |
| Thursday | 69°F | Mostly Cloudy | 8 mph NNE | 7% |
| Thursday Night | 53°F | Mostly Cloudy | 3 to 8 mph NNE | 7% |
| Friday | 71°F | Mostly Sunny | 5 to 9 mph NNE | 6% |
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 Sep 19, 2026.