New Castle Weather Forecast
- 65
- 81
Rain Showers Likely
- 57
- 83
Chance Thunderstorms
- 60
- 76
Partly Sunny
- 67
- 86
Partly Sunny
- 66
- 87
Rain Showers Likely
- 62
- 82
Rain Showers Likely
Today 12 Sep Henry
Mostly cloudy with scattered Showers and Thunderstorms through early Afternoon, then partly cloudy with isolated Showers and Thunderstorms late in the afternoon. Humid with Highs in the lower 80s. Southwest Winds around 5 Mph. Chance of rain 50 percent.
Tonight 12 Sep Henry
Partly cloudy. Lows in the mid 60s. Southwest Winds around 5 Mph.
New Castle Temperature Statistics
September Temperature
Anderson Municipal Airport (17.4 miles)
Lowest 7 September, 2026
59 °FAverage September
75.8 °FHighest 3 September, 2026
95 °F
Climate (2021–2026)
Anderson Municipal Airport (17.4 miles)
Average Low 2021–2026
44.1 °FAverage 2021–2026
51.6 °FAverage High 2021–2026
62.3 °F