Marine Weather and Tide Forecast for Nashville-Davidson, TN

SHORT TERM
(Tonight through Monday Night)
Issued at 1017 PM CDT Sat Jun 27 2026

A pesky surface boundary remains situated to our north this evening, but not for much longer. A shortwave has developed in the mid-level flow that is helping to force some of that convection farther south into Middle Tennessee, hence the storms that developed this evening. The HRRR has hinted that an organized line of convection will set up during the overnight period and into tomorrow morning, mainly in areas east of I-65 and north of I-40, so this will be the primary focus for any potential flooding, especially any areas that might experience echo training. The atmosphere across the region remains highly-unstable, moisture- laden and also moderately-sheared. So the potential for extremely high rainfall rates is definitely still present with this environment. After tomorrow, our rain chances will drop off for a stretch of days, with the threat of severe storms and flooding giving way to the threat of extreme heat. Starting Monday, an Extreme Heat Watch is in effect for widespread heat indices up to 110 degrees.

LONG TERM
(Tuesday through next Sunday)
Issued at 1017 PM CDT Sat Jun 27 2026

The extreme heat isn't going away anytime soon. High pressure both at the surface and aloft will dominate the weather across Middle Tennessee for all of next week and perhaps even through the weekend. So we will likely find ourselves with heat-related hazards for several days in a row as heat index values increase well into the 100s at most locations west of the Cumberland Plateau, possibly all the way through Saturday. As far as rain chances, we may start to experience heat-generated showers and storms toward the end of next week, but we don't expect any active weather systems here in Middle Tennessee for the foreseeable future.

AVIATION
(12Z TAFS)
Issued at 634 AM CDT Sun Jun 28 2026

VFR conditions this morning. Showers continue across the Upper Cumberland Plateau, with a low chance for an isolated thunderstorms this afternoon for SRB/CSV. Skies clear through the afternoon and overnight. Patchy fog looks favorable across the Plateau. VIS reduction down to 2-4sm is possible after 06z. Any fog that does form will dissipate after 12z Monday. Winds remain out of the SW between 5-8 kts and gusting between 12-15 kts through the afternoon.

PRELIMINARY POINT TEMPS/POPS
Nashville 93 76 96 78 / 20 0 0 0 Clarksville 92 75 96 76 / 10 0 0 0 Crossville 84 71 88 71 / 70 30 10 0 Columbia 94 74 97 76 / 10 0 0 0 Cookeville 86 72 90 73 / 60 40 0 0 Jamestown 84 70 90 71 / 90 40 20 0 Lawrenceburg 91 73 94 75 / 10 0 0 0 Murfreesboro 93 74 96 76 / 20 10 0 0 Waverly 93 74 96 76 / 10 0 0 0

OHX WATCHES/WARNINGS/ADVISORIES
Heat Advisory from 1 PM this afternoon to 7 PM CDT this evening for TNZ005>008-023>028-056>062-075-093>095.

Extreme Heat Watch from Monday morning through Thursday evening for TNZ005>010-023>032-056>064-075-093>095.