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Washington County, OK 7-Day Night Weather Forecast
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Washington County, OK Weather Forecast
Washington County, OK Weather Forecast Date: 348 PM CDT Thu Sep 10 2026
The area/counties/county of: Washington County Ok, including the city of Bartlesville.or toggle through each period.
Tonight... Mostly cloudy this evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 60s. East winds around 5 mph. Chance of rain 20%.
Friday... Mostly sunny. Warmer with highs around 90. Southeast winds around 5 mph.
Friday Night... Mostly clear. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Southeast winds around 5 mph. Chance of rain 30%.
Saturday... Mostly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 90s. South winds around 5 mph. Chance of rain 40%.
Saturday Night... Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows around 70. Southeast winds around 5 mph. Chance of rain 20%.
Sunday... Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the mid 90s. Chance of rain 20%. Heat index values up to 100.
Sunday Night... Mostly clear. Lows in the lower 70s.
Monday... Sunny. Highs in the mid 90s. Heat index values up to 105.
Monday Night... Mostly clear. Lows in the lower 70s.
Tuesday... Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 30%. Heat index values up to 105.
Tuesday Night... Mostly clear with a chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Chance of rain 40%.
Wednesday... Sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 90s. Chance of rain 40%. Heat index values up to 100.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers. Lows in the upper 60s. Chance of rain 40%.
POP = Probability of Precipitation
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