textproduct: Huntsville

KEY MESSAGES

Updated at 931 AM CDT Mon Sep 7 2026

- Afternoon highs in the upper 80s to mid 90s with heat index values in the mid 90s to 100 continue through the work week.

- Very low (10-20%) chances of showers and thunderstorms are forecast today in the higher terrain of far northeast Alabama and the adjacent Cumberland Plateau of southern Middle Tennessee.

- Medium chances (30-60%) for showers and storms return Thursday through Saturday.

NEAR TERM

(Tonight) Issued at 320 PM CDT Mon Sep 7 2026

It's going to be a pleasant evening across most of the area tonight with temperatures falling to the low to mid 70s by the end of the night, with some elevated areas seeing lows near the upper 60s. As mentioned in the previous discussion, there is a small chance (10-15%) for some showers this evening east of I-65 with most of the area remaining dry. Observed and model soundings show that there is a dry airmass at the mid levels that will help to inhibit storm development as dry air gets entrained into developing clouds. Any storms that do pop up will be fairly isolated, but there is a very low chance for some downbursts during the late evening (around 5-8 PM) with model soundings showing DCAPE values around 1100-1200 J/kg.

SHORT TERM

(Tuesday through Wednesday) Issued at 931 AM CDT Mon Sep 7 2026

High pressure will continue to promote mostly sunny, warm, and dry (rain-free) conditions both Tuesday and Wednesday. Highs will remains just a touch above seasonable normal, but still peak in the upper 80s to low to mid 90s (with peak heat index values around 100 degrees). Model soundings show a signal of strong subsidence, meaning cloud cover will be limited and thunderstorm chances very low (5-10%) each afternoon.

LONG TERM

(Thursday through Sunday) Issued at 833 PM CDT Sun Sep 6 2026

The main feature of discussion during the long term period will be a closed low system shifting eastward just north of the Great Lakes region, bringing a cold front southeastward into the Tennessee Valley by Thursday night. Ahead of and along the frontal boundary, increased chances (30-50%) of showers and thunderstorms are forecast Thursday afternoon into Friday. While there will likely be a lull in storm activity sometime Friday, this will be short-lived as an upper level shortwave shifts eastward into the area ahead of an upper level ridge that is forecast to set up over the southern Plains. Low to medium chances (20-40%) of showers and thunderstorms are forecast to continue through the weekend. Outside of the mentioned rain chances, heat will continue to be a concern. Highs are forecast to remain in the upper 80s to mid 90s with heat indices near 100 degrees. While this is below local Heat Advisory criteria, we encourage everyone to remain hydrated and practice heat safety while outdoors.

AVIATION

(18Z TAFS) Issued at 1149 AM CDT Mon Sep 7 2026

VFR conditions are forecast through the TAF period at both KMSL and KHSV.

HUN WATCHES/WARNINGS/ADVISORIES

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