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Underwood Park Lake, TN 7-Day Night Weather Forecast
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Underwood Park Lake, TN Weather Forecast
Underwood Park Lake, TN Weather Forecast Date: 816 PM EDT Mon Aug 17 2026
The area/counties/county of: Sullivan, including the cities of: Kingsport, Bristol Tn, and South Holston Dam.or toggle through each period.
Tonight... Mostly cloudy. Showers likely with a chance of thunderstorms this evening, then a slight chance of showers and thunderstorms after midnight. Patchy fog after midnight. Lows in the upper 60s. Light winds. Chance of rain 70%.
Tuesday... Partly sunny. Highs in the lower to mid 80s. Light winds.
Tuesday Night... Partly cloudy. Lows in the mid 60s. Light winds.
Wednesday... Sunny. Highs in the mid to upper 80s. Light winds.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s. Light winds.
Thursday... Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower to mid 80s. Chance of rain 40%.
Thursday Night... Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the mid 60s. Chance of rain 40%.
Friday... Partly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the lower to mid 80s. Chance of rain 70%.
Friday Night... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 60s. Chance of rain 40%.
Saturday... Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50%.
Saturday Night... Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 30%.
Sunday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s to lower 80s. Chance of rain 20%.
Sunday Night... Mostly clear. A slight chance of showers in the evening. Lows in the lower 60s. Chance of rain 20%.
POP = Probability of Precipitation
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