New Castle Weather Forecast
- 38
- 63
Mostly Cloudy
- 22
- 44
Rain Likely
- 22
- 31
Partly Sunny
- 28
- 39
Partly Sunny
- 33
- 45
Chance Rain
- 17
- 37
Chance Rain/Snow
- 17
- 27
Mostly Cloudy
Today 9 Jan Henry
Mostly cloudy. Highs in the lower 60s. Temperature falling into the mid 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.
Tonight 9 Jan Henry
Mostly cloudy. Much cooler with Lows in the upper 30s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming east toward daybreak.
New Castle Temperature Statistics
January Temperature
Anderson Municipal Airport (17.4 miles)
Lowest 2 January, 2026
12.2 °FAverage January
31.1 °FHighest 6 January, 2026
50 °F
Climate (2021–Present)
Anderson Municipal Airport (17.4 miles)
Average Low 2021–2026
43.9 °FAverage 2021–2026
51.4 °FAverage High 2021–2026
62.1 °F