Home Weather 6/30/26: Severe Extreme Heat Warning – Thunderstorm Today with High 98, Low...

6/30/26: Severe Extreme Heat Warning – Thunderstorm Today with High 98, Low 74; Dangerous Heat Index Up to 112.

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Extreme Heat Warning

* WHAT…Dangerously hot conditions with heat index values up to 112. Little to no relief will come overnight as lows will remain very warm in the upper 70s to 80 degrees.

* WHERE…A majority of Middle Tennessee west of the Cumberland Plateau.

* WHEN…Until 8 PM CDT Thursday.

* IMPACTS…Heat related illnesses increase significantly during extreme heat and high humidity events.

From 2026-06-30T07:25:00+00:00 · until 2026-07-03T01:00:00+00:00 · Source: NWS Nashville TN

A Severe Extreme Heat Warning is currently in effect for Sumner County and the surrounding areas until 8 PM CDT Thursday. This warning highlights dangerously hot conditions with heat index values potentially reaching up to 112°F.

As of 11:00 AM, the temperature in Sumner County stands at 93°F with a light wind from the south at 4.2 mph. There are no recorded precipitation levels at this time, although a thunderstorm is noted in the area.

Today’s forecast indicates a high of 98.4°F with a low of 74.1°F expected overnight. Winds may increase slightly, reaching up to 7.7 mph during the day. The chance of precipitation remains very low at 1%.

For tonight, the temperature will drop to a low of 84.2°F with winds up to 6.1 mph. The skies are expected to remain clear, providing little relief from the heat as temperatures stay elevated.

Today's Details

High
98°F
Low
74°F
Wind
8 mph
Humidity
54%
UV Index
8.1 (Very High)
Precip
1% chance · 0 in
Now
93°F · feels 105°F
Sunrise
5:32am
Sunset
8:08pm

7-Day Forecast

Day High Low Conditions
Tuesday 98°F 74°F Thunderstorm: slight or moderate
Wednesday 102°F 77°F Thunderstorm: slight or moderate
Thursday 95°F 71°F Thunderstorm: slight or moderate
Friday 95°F 71°F Thunderstorm: slight or moderate
Saturday 97°F 74°F Thunderstorm with heavy hail
Sunday 94°F 73°F Thunderstorm: slight or moderate
Monday 92°F 74°F Thunderstorm: slight or moderate

Next 24 Hours

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