Sulphur Springs, IN Weather & Growing Conditions
Today
81°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 81. East northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Patchy Fog then Sunny | 2 mph ENE | 0% |
| Tonight | 61°F | Mostly Clear | 1 mph ENE | 0% |
| Wednesday | 83°F | Sunny | 0 to 3 mph SSE | 0% |
| Wednesday Night | 64°F | Mostly Clear | 2 mph SSW | 4% |
| Thursday | 83°F | Partly Sunny then Scattered Showers And Thunderstorms | 2 to 7 mph SSW | 48% |
| Thursday Night | 66°F | Scattered Showers And Thunderstorms | 3 mph SSW | 61% |
| Friday | 82°F | Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms | 2 to 6 mph SSW | 61% |
| Friday Night | 65°F | Chance Showers And Thunderstorms | 3 mph SW | 51% |
| Saturday | 83°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph SW | 21% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 21% |
| Sunday | 85°F | Mostly Sunny | 5 to 10 mph SW | 14% |
| Sunday Night | 69°F | Partly Cloudy | 6 mph SW | 14% |
| Monday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 to 10 mph SW | 26% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 7 mph SW | 34% |
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 Aug 4, 2026.