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Washington County, TN Weather Forecast
Washington County, TN Weather Forecast Date: 128 AM EST Tue Mar 03 2026
The area/counties/county of: Washington County Tn, including the city of Johnson City.or toggle through each period.
Rest of Tonight... Mostly cloudy. A slight chance of showers. Near steady temperature in the mid 40s. Southeast winds 10 mph or less. Chance of rain 20%.
Tuesday... Mostly sunny. Not as cool with highs in the mid to upper 60s. South winds 10 mph or less.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Light winds.
Wednesday... Mostly cloudy. Highs in the lower 70s. Light winds.
Wednesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. Light winds.
Thursday... Partly sunny. Highs in the mid to upper 70s.
Thursday Night... Partly cloudy. Lows in the mid 50s.
Friday... Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 70s to lower 80s. Chance of rain 20%.
Friday Night... Mostly clear. Lows in the upper 50s.
Saturday... Sunny. Showers likely with a slight chance of thunderstorms in the afternoon. Highs in the mid to upper 70s. Chance of rain 60%.
Saturday Night... Partly cloudy with showers likely in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the upper 50s. Chance of rain 60%.
Sunday... Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Highs in the lower 70s. Chance of rain 70%.
Sunday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 50s.
POP = Probability of Precipitation
Washington County Radar Loop
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