Duncan, OK Weather Forecast

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Duncan, OK Weather Forecast

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Duncan OK weather  - Mostly Cloudy - 42°F
Mostly Cloudy
42°F
Updated 3:00 am
Feels Like 38°F
Humidity 60%
Wind E 9 mph
Barometer  30.09 in
Dew Point 30°F
Duncan OK weather  - Mostly Cloudy - 6°C
Mostly Cloudy
6°C
Updated 3:00 am
Feels Like 3°C
Humidity 60%
Wind E 14 km/h
Barometer  101.8 kPa
Dew Point -1°C

Duncan Weather Forecast

REST OF TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY
Duncan, OK Weather - Rest Of Tonight Partly Cloudy Duncan, OK Weather - Saturday Chance Of Showers Duncan, OK Weather - Saturday Night Showers Duncan, OK Weather - Sunday Showers Duncan, OK Weather - Sunday Night Cloudy Duncan, OK Weather - Monday Mostly Cloudy Duncan, OK Weather - Monday Night Partly Cloudy Duncan, OK Weather - Tuesday Mostly Sunny Duncan, OK Weather - Tuesday Night Mostly Clear Duncan, OK Weather - Wednesday Partly Sunny Duncan, OK Weather - Wednesday Night Chance Of T-Storm Duncan, OK Weather - Thursday Chance Of Showers
Partly Cloudy Chance of Showers Showers Showers Cloudy Mostly Cloudy Partly Cloudy Mostly Sunny Mostly Clear Partly Sunny Chance of T-Storm Chance of Showers
Lo: 40°FLo: 4°C Hi: 55°FHi: 13°C
Lo: 41°FLo: 5°C Hi: 45°FHi: 7°C
Lo: 40°FLo: 4°C Hi: 55°FHi: 13°C
Lo: 41°FLo: 5°C Hi: 60°FHi: 16°C
Lo: 45°FLo: 7°C Hi: 61°FHi: 16°C
Lo: 55°FLo: 13°C Hi: 69°FHi: 21°C
POP: 50% POP: 100% POP: 100% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 1228 AM CST Sat Nov 14 2026 Duncan, OK Weather - WeatherWorld.com

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Issued: 128 AM CST Sat Nov 14 2026

Key Messages

Updated at 122 AM CST Sat Nov 14 2026
  • Widespread rain event expected from today through midday Sunday, with the entire area seeing measurable rain and a maximum swath of about 1 inch of rain south of I-40.
  • Chilly on Sunday; slow warm-up thereafter.
  • Rain/storm chances return by the end of the week.

Aviation

... (06Z TAFS) Issued at 1023 PM CST Fri Nov 13 2026

A few high clouds overnight with light east winds. Clouds will increase Saturday morning with ceilings lowering throughout the day...