Weather · New Castle
New Castle forecast & conditions
Current conditions, the 7-day outlook and hour-by-hour details for New Castle, straight from the National Weather Service. Watches and warnings show up first.
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Climate · a normal year
What a year in New Castle feels like
New Castle has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 14°, and about 39 inches of snow falls in a normal winter.
39° / 16°Winter
63° / 33°Spring
87° / 52°Summer
65° / 34°Fall
How much snow does New Castle get?About 39 inches a winter.Rain & snow →When is the first frost?Around Oct 3, with the last in spring around May 13.Frost dates →Is it warmer than it used to be?+1.7° vs. the 20th century.Then & now →
See New Castle’s full climate →
NOAA U.S. Climate Normals, 1991–2020. A normal is a 30-year average, not a forecast.
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Data from the U.S. National Weather Service (weather.gov) — free public data, not modified by TownTapestry. Not a substitute for official warnings; always follow weather.gov and local authorities.