Regional Forecast — Cumberland Plateau & Tennessee Valley

The week starts hot and sunny before thunderstorms become widespread midweek.

Monday: Sunny. Cumberland Plateau high near 86, Tennessee Valley high near 89. South winds 5–10 mph, gusts up to 20 mph. Light south wind increasing in the Tennessee Valley in the morning.

Monday Night: Partly cloudy. Low around 64 for both regions. South wind around 5 mph, gusts up to 20 mph in the Cumberland Plateau, becoming calm in the Tennessee Valley in the evening.

Tuesday: Partly sunny. Cumberland Plateau high near 85 with a slight chance of showers after 2–4 pm (20% chance). Tennessee Valley high near 88, slight chance of showers after 2 pm. South-southwest wind 5–10 mph.

Tuesday Night: Partly cloudy. Cumberland Plateau low around 63 with a slight chance of thunderstorms before 7 pm, then chance of showers and thunderstorms after 1 am (40%). Tennessee Valley low around 63 with a chance of showers between 2–5 am, then showers and thunderstorms after 5 am (30%). South-southwest to southwest winds 5 mph, becoming calm in the evening.

Wednesday: Showers likely, then showers and possibly a thunderstorm later. Cumberland Plateau high near 82, Tennessee Valley high near 86. Calm wind becoming west around 5 mph. Chance of precipitation: 90% Cumberland Plateau, 80% Tennessee Valley.

Wednesday Night: Mostly cloudy with patchy fog. Low around 60 Cumberland Plateau, 61 Tennessee Valley. Chance of showers and thunderstorms: 50% Cumberland Plateau, 80% Tennessee Valley. Calm winds.

Thursday: Showers and possibly a thunderstorm. Cumberland Plateau high near 78, Tennessee Valley high near 82. Calm wind becoming south around 5 mph. Chance of precipitation: 80% Cumberland Plateau, 80% Tennessee Valley. Patchy fog before 9 am in Cumberland Plateau.

Thursday Night: Mostly cloudy. Low around 60–61. Cumberland Plateau: chance of showers and thunderstorms (40%), south-southeast wind 5 mph after midnight. Tennessee Valley: showers and possibly a thunderstorm before 8 pm, chance of showers and thunderstorms 8 pm–2 am, then showers after 2 am (80%).

Friday: Showers likely, then showers and possibly a thunderstorm in the afternoon. Cumberland Plateau high near 79, Tennessee Valley high near 81. Chance of precipitation: 80% Cumberland Plateau, 90% Tennessee Valley.

Friday Night: Showers and possibly a thunderstorm. Low around 61 for both regions. Chance of precipitation 80% for both.

May 18 Almanac — Crossville & Rockwood

Temperatures
Crossville: Normal 74° / 53° | Records: 90° (1962) / 35° (1973)
Rockwood: Normal 78° / 54° | Records: 90° (1962) / 31° (1973)

Precipitation Records
Crossville: 1.80″ rain (2020) | Trace snow (1995)
Rockwood: 1.15″ rain (1980) | 0.0″ snow (2025)

Sunrise & Sunset
Crossville: Sunrise 5:32 AM CDT | Sunset 7:42 PM CDT
Rockwood: Sunrise 6:29 AM EDT | Sunset 8:41 PM EDT

Sky & Seasonal Events
Next Full Moon (Blue Moon): May 31, 2026
Crossville: 3:45 AM CDT | Rockwood: 4:45 AM EDT
Summer Solstice: June 21, 2026
Crossville: 3:24 AM CDT | Rockwood: 4:24 AM EDT
Daylight Saving Time Ends: November 1, 2026
Crossville: 2:00 AM CDT | Rockwood: 2:00 AM EDT

Weather information is provided by the National Weather Service in Nashville and Morristown. You can hear the latest forecast on 105.7 The Hog, 94.1 The Vibe (1410 AM), Spirit 101.9, 98.9 The Wolf, and 93.3 The Ranch (580 AM). Stay connected with Weather Reporter Johnny Caudle on social media by following him on Facebook, X, Instagram, Bluesky, and YouTube. You can also click here to send him an email.