textproduct: Huntsville

KEY MESSAGES

Updated at 942 AM CDT Sun Aug 30 2026

- Moderate to Major Heat Risk is forecast Sunday through Saturday with afternoon heat indices rising between 100-105 degrees.

NEAR TERM

(Tonight) Issued at 139 PM CDT Sun Aug 30 2026

Afternoon Cu scatters the sky this afternoon, otherwise it is currently in the upper 80s with light southeasterly winds. Heat index values are not too bad today, in the 90s, but that will not be the case for this upcoming week. The Cu will fade with sunset, and with mostly clear skies, will not rule out some patchy fog for those in sheltered locations, valleys and near bodies of water. Otherwise, look for lows around 70 degrees. No changes made to tonight's forecast.

SHORT TERM

(Monday through Wednesday) Issued at 942 AM CDT Sun Aug 30 2026

The forecast concerns for the short term remain the same: Heat. This heat dome that is draped from the Central Plains over to the Mid-Atlantic, its center will continue to slide eastward this week. This will increase our heat risk but the subsidence will keep showers out of the forecast through mid week. The NWS HeatRisk will start off at a level 2 (Moderate) on Monday but as the ridge strengthens across the region, level 3 (Major) will start to appear across the forecast area next week. For temps, they will be in the lower 90s on Monday, but in the mid to upper 90s Tuesday and Wednesday (slightly cooler in the higher elevations). Heat index values will climb as well with most of us seeing values 100-105 but a few spots seeing up to 107, especially Tuesday and Wednesday. Did see that the WBGT values are in the 80s next week with a good chunk of us around 88 degrees on Tue and Wed. With lows sticking in the 70s at night, there won't be much of a relief. No Heat Advisory issued at this time, however temp, heat index and WBGT values and their coverage will be monitored for the need of a heat product at a later time.

LONG TERM

(Tuesday night through Saturday) Issued at 821 PM CDT Sat Aug 29 2026

A stout upper ridge as well as high pressure to our northeast over the Appalachians will keep most shower and storm activity out of the forecast (aside from perhaps low chances over the terrain) through the next week. Therefore, hot and humid conditions will continue to be the theme next week with forecast highs in the lower to mid 90s, lows in the lower to mid 70s, and dew points in the upper 60s to lower 70s each day. This will result in Heat Indices ranging between 100-107 degrees each day, along with NWS HeatRisk in the Moderate to Major (Levels 2 and 3 of 4) categories every day and WBGTs in the mid to upper 80s each afternoon. We'll need to keep an eye to see if any heat products will be necessary; however, regardless, please practice heat safety! This is especially important if you work outdoors or have outdoor activities. Make sure to dress in light- colored, loose-fitting clothing, drink plenty of water, and take frequent breaks in the shade. Also, never leave people or pets in vehicles!

AVIATION

(18Z TAFS) Issued at 1158 AM CDT Sun Aug 30 2026

VFR conditions will prevail at KHSV and KMSL through the TAF period.

CLIMATE

Issued at 555 PM CDT Sat Aug 29 2026

Moderate Risk for Much Above Normal Temperatures:

The Climate Prediction Center has included northern Alabama and southern Middle Tennessee in a Moderate Risk for Much Above Normal Temperatures for September 6th through the 8th. 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.