Heat Advisory: 9/18/26: Minor Heat Advisory Issued as Nighttime Temps Stay Warm with Partly Cl…

by Weather Write | Sep 18, 2026 | Weather | 0 comments

Heat Advisory

* WHAT…Heat index values up to 108 expected.

* WHERE…Across Middle Tennessee.

* WHEN…Until 7 PM CDT Sunday.

* IMPACTS…Hot temperatures and high humidity may cause heat illnesses.

From 2026-09-18T02:51:00+00:00 · until 2026-09-21T00:00:00+00:00 · Source: NWS Nashville TN

Minor Heat Advisory is in effect until 7 PM CDT Sunday, with heat index values expected to reach up to 108°F.

At 7:50 PM in Nashville, the temperature is 89.4°F with a light breeze from the south at 3.2 mph. No precipitation has been recorded. Earlier today, the high reached 98.1°F, while the low was 73.6°F. Skies were partly cloudy throughout the day.

Tonight, temperatures are expected to drop to a low of 84.4°F, with winds remaining light, going up to 6.5 mph. The chance of precipitation continues at 3%, with partly cloudy skies overnight.

The active Minor Heat Advisory warns of the potential for heat illnesses due to high humidity and elevated temperatures across Middle Tennessee. Residents should take precautions to stay cool and hydrated.

Today's Details

High
98°F
Low
74°F
Wind
7 mph
Humidity
34%
UV Index
6.5 (High)
Precip
3% chance · 0 in
Now
89°F · feels 91°F
Sunrise
6:32am
Sunset
6:49pm

7-Day Forecast

Day High Low Conditions
Friday 98°F 74°F Overcast
Saturday 98°F 76°F Overcast
Sunday 98°F 75°F Overcast
Monday 96°F 70°F Drizzle: moderate
Tuesday 85°F 69°F Overcast
Wednesday 83°F 66°F Partly cloudy
Thursday 79°F 61°F Overcast

Next 24 Hours