Good morning, East Tennessee!
Happy Sunday to you, and thanks for checking in with your local forecast from the eastTNweather team. I hope you’re enjoying a relaxing weekend. Today brings a bit more cloud coverage compared to Saturday, but overall we’re still on track for a comfortable day with average early September temperatures.
Weather Headlines
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☁️ Sunday: More clouds than Saturday, highs in the low-mid 80s
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️ Tuesday: Isolated showers possible with a Carolina low
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️ Midweek: Sunshine returns, temps climb into the upper 80s
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️ Late Week: Trough brings rain chances and a potential cool down
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Rainfall Outlook: Trending slightly wetter than average for September
Sunday Morning Setup
We started off the day on a mild and pleasant note, with morning lows in the 50s and 60s. Clouds have been hanging around—especially across the Cumberland Plateau—thanks to a weak wave of energy slipping through the region. A few light sprinkles and isolated showers showed up earlier, but nothing widespread or long-lasting.
Through the day:
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Clouds: Gradually thinning, especially across the Valley and Smokies.
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Plateau: Clouds likely to linger longer, holding on a bit stronger this afternoon.
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Temperatures:
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Upper 70s by lunchtime
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Highs back into the low to mid 80s, with a few upper 80s possible in southern spots
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Evening Forecast: Comfortable Finish to the Weekend
If you’re wrapping up the weekend with a walk, grilling out, or heading to evening church services, the weather will cooperate.
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6 PM: Around 82°
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8 PM: 76°
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10 PM: Near 71°
It’ll be a mild and pleasant evening—great fire pit weather if you missed out on Friday or Saturday night.
Looking Ahead: Rain Chances Return, Sort Of
The next 7 days bring a few opportunities for rain, but nothing widespread or flooding-worthy at this point.
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Tuesday: A low-pressure system drifting through the Carolinas could toss some moisture our way. With just enough instability in the atmosphere, we’ll carry about a 20% chance of showers. Most communities will stay dry, but don’t be surprised by a pop-up shower.
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Wednesday–Thursday: Dry again with more sunshine, highs climbing into the upper 80s.
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Friday–Saturday: Models are advertising another trough of low pressure swinging in from the north. This one could increase rain chances and even deliver a slight cool down by next weekend.
7-Day Forecast at a Glance
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Sunday: Clouds early, sunshine later, highs low-mid 80s
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Monday: Dry, seasonable, mid 80s
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Tuesday: 20% chance of showers, otherwise partly cloudy, low 80s
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Wednesday–Thursday: Sunshine, highs upper 80s
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Friday–Saturday: Increasing rain chances with a trough, slight cool down possible
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Next Week: Pattern still uncertain—stay tuned for updates
Rainfall Outlook: Trending a Bit Wetter, Maybe and Warmer than Average
The Climate Prediction Center has nudged rainfall projections upward compared to yesterday’s outlook. While we’re still not expecting soaking rains, we may end up slightly above average for rainfall heading into mid-September if that trough develops as models suggest.
For a typically dry month, even a little extra rain is welcome news across East Tennessee.
Plus, we may be trending above average. All that means is highs could be above 84°.
ABOVE AND BEYOND THE 7 DAY FORECAST
Final Word
Sunday won’t be quite as sunny as Saturday, but it will still be comfortable with highs in the low to mid 80s and a pleasant evening ahead. A stray shower or two is possible Tuesday, then another system late week could boost rain chances and bring cooler air into East Tennessee.
If you’d like the quick version, check out “One Minute With Witcher” on the eastTNweather app. And don’t forget, the app also has interactive radar, lightning alerts, and push notifications so you can stay ahead of changing conditions wherever you are.
Have a wonderful Sunday, and I’ll see you back here tomorrow with your next update!