20 Degrees Cooler
Saturday, October 17, 2026 · 12:43 AM
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Cool and dry weekend with patchy frost Saturday night and Sunday night. Gradual warming trend next week with highs mostly in the seventies. Dry all next week, so drought conditions are expected to worsen. The front tore through Middle Tennessee at dawn! Twenty degrees cooler than twenty-four hours ago! Wind gusts pushing over twenty miles per hour across the Plateau! Max temperatures barely touch the mid fifties! Twenty degrees cooler! Twenty degrees cooler! Twenty degrees cooler! Twenty degrees cooler! The air turns dry and the fire risk spreads! No rain coming to save the ground! Valleys plunging straight into the thirties tonight! Twenty degrees cooler! Twenty degrees cooler! Patchy frost. Dry all week.
The forecast discussion
KEY MESSAGES
Updated at 1239 AM CDT Sat Oct 17 2026
- Cool and dry weekend with patchy frost Saturday night and Sunday night.
- Gradual warming trend next week with highs mostly in the 70s.
- Dry all next week, so drought conditions are expected to worsen.
SHORT TERM
(Tonight through Sunday Night) Issued at 1045 PM CDT Fri Oct 16 2026
The cold front that moved through Middle TN Friday morning had brought an end to record-breaking heat, giving us our first taste of real fall weather.
Temperatures this evening were running 20 degrees cooler than 24 hours ago, and the cooler, breezy trend will continue.
A few very light showers along the Plateau will move out soon with partly to mostly cloudy skies overnight into Saturday.
Breezy conditions will continue with gusts over 20 mph at times.
The winds will finally diminish by late Saturday afternoon as very dry high pressure settles overhead.
Daytime Saturday will be the coolest of the fall season so far with temperatures making it only to the mid 50s to lower 60s!
The breezy and dry conditions will enhance the fire risk, so burning is discouraged, and likely banned in some areas.
Good radiational cooling will be in place for Saturday night with light winds and clear skies.
This will allow many areas to dip into the 30s.
Patchy frost will develop, mainly in valleys and along the Plateau.
Daytime Sunday will be a nice fall day with sunshine, light winds, and highs in the 60s.
Patchy frost will be possible again Sunday night.
LONG TERM
(Monday through next Saturday) Issued at 1045 PM CDT Fri Oct 16 2026
Dry high pressure will stay in place through the week.
As a ridge builds overhead, daytime highs will gradually warm through the 70s, reaching around 80 by the end of the week.
Nights will be clear and continued chilly.