Weather · Duncan
Duncan forecast & conditions
Current conditions, the 7-day outlook and hour-by-hour details for Duncan, straight from the National Weather Service. Watches and warnings show up first.
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Climate · a normal year
What a year in Duncan feels like
Duncan has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 90°, a January night drops to 32°, and about 4 inches of snow falls in a normal winter.
54° / 34°Winter
72° / 49°Spring
88° / 68°Summer
72° / 51°Fall
How much snow does Duncan get?About 4 inches a winter.Rain & snow →When is the first frost?Around Nov 7, with the last in spring around Mar 28.Frost dates →Is it warmer than it used to be?+1.1° vs. the 20th century.Then & now →
See Duncan’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.