Weather WorldLake Duncan, OK 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Lake Duncan, OK Weather Forecast
Lake Duncan, OK Weather Forecast Date: 128 AM CDT Sun Sep 20 2026
The area/counties/county of: Stephens, including the city of Duncan.or toggle through each period.
Rest of Tonight... Partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph.
Sunday... Partly sunny. A slight chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 90s. South winds around 10 mph. Chance of rain 60%.
Sunday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Southeast winds 5 to 10 mph, becoming east after midnight. Chance of rain 50%.
Monday... Partly sunny in the morning, then becoming mostly cloudy. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Northeast winds 5 to 10 mph. Chance of rain 20%.
Monday Night... Partly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20%.
Tuesday... Mostly sunny. Highs in the upper 80s.
Tuesday Night... Partly cloudy. Lows in the lower 60s.
Wednesday... Mostly sunny. Highs in the upper 80s.
Wednesday Night... Partly cloudy. Lows in the lower 60s.
Thursday... Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 20%.
Thursday Night... Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20%.
Friday... Partly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30%.
Friday Night... Mostly cloudy with a 20% chance of showers. Lows in the lower 60s.
POP = Probability of Precipitation
Lake Duncan Radar Loop
Use the map search tool if you want to place a location marker on the radar map...