textproduct: Huntsville

KEY MESSAGES

Updated at 1047 PM CDT Thu Aug 27 2026

- Dangerous heat will return late this weekend into early next week with heat indices approaching or exceeding 100 degrees.

NEAR TERM

(Today) Issued at 247 AM CDT Fri Aug 28 2026

Patchy fog has developed in a few river valley locations. The fog is rather isolated at this time, but will monitor trends over the next couple of hours. A very weak cool front dropped south into north AL Thursday evening, and should slide southeast of the area by late this afternoon. There is a 10-15% of a shower or thunderstorm along the I-59/Lookout Mtn corridor with this front in the area today. Further northwest, a north wind of 5-10 mph will advect drier air into the TN valley, resulting in dew points falling into the lower to middle 60s. Sunshine will push temperatures into the 88-92 degree range in valley locations (a few degrees cooler atop the higher plateau areas).

SHORT TERM

(Friday night through Sunday) Issued at 1047 PM CDT Thu Aug 27 2026

Upper ridging will begin to build across the central and eastern U.S. this weekend, leading to a mostly dry but warming forecast. An axis of higher moisture should remain positioned to our southeast and will result in low chances (20% or less) for diurnal thunderstorms over SE portions of the TN Valley both Saturday and Sunday. The bigger threat will come from increasing heat through Sunday, with highs climbing into the lower 90s and heat indices approaching or reaching 100 degrees. This will become dangerous for those who are especially susceptible to the heat and those without proper cooling and hydration. Practice heat safety this weekend and never leave people or pets unattended in vehicles!

LONG TERM

(Sunday night through Thursday) Issued at 1047 PM CDT Thu Aug 27 2026

The long term period will be dominated by an upper level ridge forecast to reside over the southeast U.S., bringing sfc high pressure and subsequent dry/warm conditions to the Tennessee Valley. A warming trend will set up early next week with highs reaching comfortably into the 90s and heat indices in the 100-105 degree range. There is a low chance a Heat Advisory will need to be issued by mid next week for heat indices over 105 degrees in portions of northern Alabama. Otherwise, PoPs remain very low each day as mostly dry weather is forecast. Be sure to keep up to date with the latest forecast and practice heat safety next week such as seeking shade when outdoors and remaining hydrated.

AVIATION

(12Z TAFS) Issued at 528 AM CDT Fri Aug 28 2026

Patchy BR/FG will dissipate by 14Z. Some of the fog will be dense in a few area river valleys. Then, VFR flight weather conditions are forecast.

CLIMATE

Issued at 605 PM CDT Thu Aug 27 2026

Moderate Risk for Much Above Normal Temperatures:

The Climate Prediction Center has included the entire Tennessee Valley in a Moderate Risk for Much Above Normal Temperatures for September 4th through 6th. Therefore, there is a 40-60% chance for temperatures above 95 degrees F and heat index values exceeding 105 degrees F during this period

More information on the CPC U.S. Hazards Outlook can be found at: https://www.cpc.ncep.noaa.gov/products/predictions/threats/threats.php

HUN WATCHES/WARNINGS/ADVISORIES

AL...None. TN...None.