Tomorrow | Weather | Clarksville, Tennessee

Active Weather Warnings
Tuesday, July 21, 2026
Sunny with a Chance of Thunderstorms
Day 97°
Night 72°
Precipitation 88 %
Wind 8 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (July 21, 2025)
Stormy Weather

Day

91°

Night

73°

Wind

4 mph

Precipitation

70 %

Weather Alerts and Warnings for

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 20 at 11:23AM CDT until July 21 at 8:00PM CDT by NWS Nashville TN
Jul 20, 11:23 AM Jul 21, 8:00 PM
WHAT: Heat index values up to 110.

WHERE: A portion of Middle Tennessee.

WHEN: Until 8 PM CDT Tuesday.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Updated: Jul 20, 6:21 PM Source: NWS Alert