East Tennessee Weather: Crisp Wednesday Morning, Sunny Days, and Weekend Rain on the Horizon

Wow, East Tennessee, doesn’t that crisp morning air feel amazing?
On this Wednesday, June 11, 2025, at 7:37 AM EDT, we’re savoring a refreshing drop in dew points that’s making this morning a delight, with clear skies and a touch of fog. Morning temperatures have dipped into the 50s and low 60s, offering a rare summer treat. From the vibrant pulse of Knoxville to the misty trails of the Great Smoky Mountains and the rugged beauty of the Cumberland Plateau, the EastTNweather platform, led by meteorologist Mike Witcher, delivers hyper-local updates via its app, website, YouTube, Roku, Amazon Fire, and Apple TV to keep you weather-ready.

Wednesday: Lower Humidity and Sunny Skies
Wednesday starts with a refreshing chill, as morning temperatures dip into the 50s in higher elevations like the Cumberland Plateau and low 60s in the Tennessee Valley near Chattanooga and Knoxville. A touch of fog lingers in low-lying areas like Sevierville and Cleveland, but clear skies dominate as high pressure builds at the surface and an upper-level trough lifts out. Dew points in the low 50s to low 60s create a comfortable, less muggy feel compared to the upper 60s and low 70s expected later this week. By midday, sunshine pushes temperatures into the mid to upper 70s, with afternoon highs reaching the mid to upper 80s, 3-5 degrees above the seasonal average of 81°F. The heat index stays close to the actual temperature, around 85-88°F, thanks to the lower humidity.

The EastTNweather app is your key to enjoying Wednesday’s pristine weather, with its Interactive Radar confirming clear skies and fog dissipation by 9 AM. Seize the morning for hikes in Cades Cove, picnics at Knoxville’s World’s Fair Park, or riverside strolls in Chattanooga, but drive cautiously in foggy spots like the Cumberland Plateau early on. South of I-40, including Chattanooga and Athens, expect ideal conditions for outdoor dining in Pigeon Forge or exploring Gatlinburg’s charm. North of I-40, like Knoxville and Morristown, the low humidity is perfect for markets in Jonesborough or festivals in the Tri-Cities. Wednesday’s crisp air and sunshine are a summer gem, so get outside and soak it up!

Thursday: Mostly Sunny with a Stray Shower Possible
Thursday keeps the warm, sunny vibe, with highs in the mid to upper 80s and lows in the 60s, but humidity begins to creep up as dew points rise to the mid-60s. A stray pop-up shower or thunderstorm is possible in the afternoon, most likely south of I-40 in Chattanooga or Cleveland after 3 PM, but coverage will be minimal, with rainfall under 0.25 inches. Most of East Tennessee, including Knoxville and Upper East Tennessee (Johnson City, Kingsport), should stay dry, supporting outdoor plans. The heat index climbs to 88-90°F, signaling a return to summer’s warmth.

The EastTNweather app’s Interactive Radar is your tool for tracking Thursday’s potential showers, with real-time updates to confirm dry conditions for most areas. Plan afternoon hikes in the Smoky Mountains, outdoor concerts in Chattanooga, or commutes in Sevierville, but check the app for late-day shower alerts south of I-40. The platform’s streaming updates on YouTube, Roku, Amazon Fire, and Apple TV, led by Mike Witcher, refine Thursday’s outlook, ensuring confident planning. Thursday’s mostly sunny skies keep the summer energy high, with the app keeping you prepared for any stray storms.

Friday: Increasing Afternoon Storm Coverage
Friday sees a slight uptick in storm chances, with scattered afternoon showers and thunderstorms possible, though not widespread. Highs remain in the mid to upper 80s, with dew points in the mid to upper 60s pushing the heat index to 90-92°F, creating a muggy feel. Rainfall amounts of 0.5-1 inch are possible in isolated areas, particularly south of I-40 in Chattanooga, Athens, and Cleveland, while north of I-40, like Knoxville and Morristown, may see lighter showers. The storms are typical summer pop-ups, with a low risk of severity but potential for gusty winds.

The EastTNweather app’s forecasts and radar are essential for Friday, with push notifications for heavier showers. Enjoy morning activities like kayaking on the Tennessee River or visiting the Knoxville Zoo, but plan indoor options like the Tennessee Aquarium in Chattanooga for afternoon storms south of I-40. North of I-40, use the app to find dry windows for hikes in Gatlinburg or markets in the Tri-Cities. The platform’s streaming updates provide context for Friday’s weather, ensuring flexibility for plans in Sevierville or the Cumberland Plateau. Friday’s storms add a summer spark, but the app keeps you ready.

Saturday-Sunday: Elevated Rain Chances
The weekend brings a significant increase in rainfall as an upper-level wave swings through the Ohio Valley, driving showers and storms across East Tennessee. Highs hold in the mid to upper 80s, with dew points in the upper 60s to low 70s pushing the heat index to 90-95°F, creating sticky conditions. Rainfall totals of 1-3 inches are possible by Sunday, heaviest south of I-40 in Chattanooga, Cleveland, and Athens, with potential for localized flooding in urban areas like Knoxville’s downtown or low-lying regions near the Little Pigeon River in Sevierville or the Hiwassee River in Cleveland. North of I-40, including Morristown and the Tri-Cities, expect 0.5-1.5 inches. Severe weather risks, such as gusty winds, are possible but not yet certain.

The EastTNweather app’s Interactive Radar is critical for tracking weekend storms, with alerts for heavy rain or flood risks. Plan indoor activities like Dollywood’s indoor attractions in Pigeon Forge or the East Tennessee History Center in Knoxville for Saturday and Sunday afternoons. Use the app to find morning dry windows for short hikes in the Smoky Mountains or markets in Jonesborough, especially north of I-40. The platform’s streaming updates will refine the weekend forecast as the wave nears, so check back Friday for the latest. The wet weekend keeps summer lively, but the app ensures you stay adaptable and safe.

Next Week’s Outlook: A Bit of an Active Summer Pattern
Early next week, the active summer pattern continues, with highs in the low to mid-80s and scattered afternoon showers or storms, though less intense than the weekend. Dew points in the mid-60s maintain moderate humidity, with rainfall amounts under 0.5 inches per storm. This weather supports outdoor activities like visiting the Knoxville Botanical Garden or kayaking in Chattanooga, but flexibility is key to dodge showers. The EastTNweather app’s long-range forecasts will clarify next week’s outlook, with alerts for any renewed severe risks.

The platform’s streaming updates on YouTube and Roku provide context for the extended forecast, helping you plan commutes in Morristown or events in Athens. The low to mid-80s offer a vibrant summer feel, with the app’s precision ensuring you seize dry moments for hikes in the Smoky Mountains or festivals in Cleveland. Stay tuned to the app for updates as the week evolves, keeping your summer plans weather-ready and thriving.