47386 Weather (New Castle, IN)

Weather forecast for: New Castle IN

Last Update: 6:45 pm EDT Sep 29, 2026

Tonight: Increasing clouds, with a low around 56. Light and variable wind.

Wednesday: Partly sunny, with a high near 79. South southwest wind 5 to 7 mph.

Wednesday Night: Mostly cloudy, with a low around 66. South southeast wind 3 to 6 mph.

Thursday: Mostly sunny, with a high near 85. South southwest wind 6 to 9 mph, with gusts as high as 20 mph.

Thursday Night: Showers likely after 2am. Mostly cloudy, with a low around 66. Light south wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday: Showers and possibly a thunderstorm before 2pm, then a chance of showers. High near 70. West southwest wind 6 to 9 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night: A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 49. Northeast wind 6 to 8 mph, with gusts as high as 18 mph.

Saturday: Partly sunny, with a high near 64. East northeast wind around 9 mph, with gusts as high as 18 mph.

Saturday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. East northeast wind around 5 mph becoming calm in the evening.

Sunday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 66. Calm wind becoming north around 6 mph in the afternoon.

Sunday Night: Partly cloudy, with a low around 43.

Monday: Sunny, with a high near 63.

Monday Night: Mostly clear, with a low around 40.

Tuesday: Sunny, with a high near 63.