Greencastle Weather Forecast
- 17
- 66
Rain Showers
- 15
- 26
Blustery
- 25
- 28
Partly Sunny
- 22
- 37
Chance Snow Showers
- 15
- 31
Partly Sunny
- 25
- 33
Partly Sunny
Today 28 Dec Putnam
Cloudy with scattered Showers with isolated Thunderstorms. Warmer. Near steady temperature in the mid 60s. Southwest Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 50 percent.
Tonight 28 Dec Putnam
Scattered rain Showers with isolated Thunderstorms late this Afternoon, then rain Showers with isolated Thunderstorms through midnight. Windy and much Colder with Lows 15 to 20. Southwest Winds 15 to 20 Mph, becoming west 20 to 30 Mph. Gusts up to 45 Mph. Chance of rain near 100 percent.
Greencastle Temperature Statistics
December Temperature
Terre Haute Regional Airport (28 miles)
Lowest 15 December, 2025
-9.9 °FAverage December
32.9 °FHighest 26 December, 2025
66.9 °F
Climate (2020–Present)
Terre Haute Regional Airport (28 miles)
Average Low 2020–2025
45.6 °FAverage 2020–2025
55.5 °FAverage High 2020–2025
65.4 °F