Happy Monday, East Tennessee! Kick Off a Muggy Week with Heat and Storms Ahead

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Happy Monday, folks! As your local meteorologist, I’m bringing you the latest weather scoop for Monday, July 14, 2025.
I sure hope you enjoyed the weekend—let’s make this week great too! We’re starting off with mild and muggy conditions, with morning temps in the 60s and low 70s. This easy-to-grab blog breaks it down day by day for Knoxville, Chattanooga, and the Great Smoky Mountains, so let’s dive in and get ready!

Monday: Warm and Muggy with Afternoon Storms
Today kicks off with that mild, muggy feel, and we’ll warm up fast to the mid to upper 80s by lunchtime, with afternoon highs hitting the low 90s. But with all that humidity, the heat index will push into the low 100s again—whew! Rain chances are back, with afternoon showers and storms likely, just like the past few days. The best spot for action looks to be across the Cumberland Plateau and north of Interstate 40—though that doesn’t rule out rain south of 40, it’s just more likely up north. Stay tuned!

Tuesday: Hot and Sticky with More Storms
Tuesday, July 15, keeps the hot July vibe going. Highs will climb to the low 90s, and that muggy air will bump the heat index back to the low 100s. We’ve got another round of afternoon showers and storms, with chances similar to today. Lightning will be the main threat, so download the eastTNweather app for push notifications when lightning’s within 15 miles—click the alert, hit play on the Interactive Radar, and get past, current, and future views to navigate the storms!

Wednesday: Hot Weather Continues with More Storm Potential
Wednesday, July 16, sticks with the pattern—highs in the low 90s and a heat index near the low 100s thanks to the humidity. Afternoon showers and storms are on the table again, maybe a tad more coverage than earlier in the week. Watch for lightning, and use the app to track it. If rain piles up, keep an eye on localized flooding.

Thursday: Let’s Do It Again, Another Hot Day with Afternoon Storms Chances
Thursday, July 17, brings more of the same hot weather, with highs in the low 90s and a heat index in the low 100s. Those afternoon showers and storms will pop up, with lightning as the key concern. The eastTNweather app’s push alerts will keep you safe—check the Interactive Radar to see what’s coming and plan accordingly.

Friday: Muggy Heat with More Afternoon Storms
Friday, July 18, wraps the workweek with highs in the low 90s and a heat index pushing the low 100s. Expect those familiar afternoon showers and storms, with lightning still the main threat. No washout, but if you’ve had rain all week, watch for pooling water. The app’s your best friend here—stay updated!

Saturday: Weekend Warmth with Guess What? More Storms
Saturday, July 19, keeps the weekend warm with highs in the low 90s and a heat index near the low 100s. Afternoon showers and storms will roll in, maybe with a bit more punch. Lightning’s the big worry, so use the eastTNweather app to track it and adjust your outdoor plans.

Sunday: A Hot Finish to the Weekend with More Storms
Sunday, July 20, closes out the week with highs in the low 90s and a heat index in the low 100s. We’ll see more afternoon showers and storms, with lightning as the primary threat. It won’t soak everyone, but if rain builds up, localized flooding could pop up. Keep the app close for real-time updates!

ABOVE AND BEYOND THE 7 DAY FORECAST

Looking past the 7 Day Forecast, the Climate Prediction Center has issues a forecast based on probabilities.
These maps don’t show you how far above or below, but rather an idea of how strong the signal is.

Why This Weather is Happening
This hot, July weather pattern is sticking around all week. Our mid-level ridge is holding strong along the Gulf coast, putting us on the northern side where disturbances flow in. That’s what’s bringing those afternoon storms our way—some days might get a little more rain than others, but no full washouts. If you’re getting rain daily, these efficient producers could lead to localized flooding, so stay alert. For Knoxville locals, Chattanooga outdoor fans, and Smoky Mountain visitors, this helps you plan and stay safe.

Your Weather Friend: The eastTNweather App
The eastTNweather app is your go-to for East Tennessee weather. Launched in October 2023 after 20 years at WBIR, it delivers three daily video forecasts, a live morning chat, and updates on MikeWitcherTV and ETNWeather. Free on Roku, Amazon Fire, eastTNweather.com, and the app, it’s a lifesaver with push notifications for lightning within 15 miles and the Interactive Radar showing past, current, and future weather. Download it today!

Stay Connected with eastTNweather
I’m here to keep you in the know and safe. Pop over to eastTNweather.com, grab the app, or follow me on social media for the latest on today’s heat and the week’s storms. Have a great Monday, enjoy the week, and check back in—let’s tackle this weather together!