textproduct: Huntsville

KEY MESSAGES

Updated at 1020 AM CDT Sat Sep 12 2026

- Medium chances (40-70%) of showers and thunderstorms will remain in the forecast today with little to no risk for severe weather.

- NWS Heat Risk will remain in the Moderate category throughout the forecast period as max temperatures rise back up into the mid 90s areawide beginning on Sunday.

NEAR TERM

(Tonight) Issued at 222 PM CDT Sat Sep 12 2026

An area of showers and thunderstorms weakened after moving across the Quad Cities in the late morning. This activity has picked up again as it neared the I65 corridor, now as a line of storms heading a bit south of due east between Decatur and Huntsville. Some of these storms recently produced wind damage over portions of Morgan County. Other weaker showers over Giles County were nearing Lincoln County. With the lower clouds generally scattered out from daytime heating, area temperatures so far have risen into the mid/upper 80s with light southerly winds.

Model output continued with showers dissipating as we go into the evening. Night-time low temperatures should cool into the mid 60s to lower 70s with light winds. Depending upon how much and where wetting rain occurs (1/10" or more), fog development looks probable. The newer models and MOS output continued to hint at a fog chance so kept it in.

SHORT TERM

(Sunday through Monday night) Issued at 1020 AM CDT Sat Sep 12 2026

Drier air returns to the Tennessee Valley to start off a new week. Along with the drier conditions are warmer to hot conditions making a return. Thus high temperatures on Sunday should rise into the upper 80s east to mid 90s west. A tad warmer Monday with highs from around 90 east into mid 90s west. Dewpoints mainly in the lower 70s will boost apparent or heat index temperatures into the lower 90s east to 102 west Sunday. Those values increase on Monday ranging from the mid/upper 90s east to 107 west and over greater Huntsville. Area coverage of 105 degree and warmer is too small to justify a Heat Advisory at this juncture. But we cannot rule out that one may needed should the hot conditions continue. In any case, the heat could become dangerous for those performing work outdoors. Please drink plenty of water, stay out of the sun if possible and take frequent breaks.

LONG TERM

(Tuesday through Friday) Issued at 816 PM CDT Fri Sep 11 2026

The main impact of the long term period will be the hot and humid conditions. The upper level ridge remains entrenched over most of the eastern US. As a result, afternoon highs are forecast to climb into the low to mid 90s, which is 5 to 10 degrees above normal for this time of year. Dewpoints should remain in the upper 60s to lower 70s keeping max heat index values between 97-104 degrees. While this is just below advisory criteria, it will still be dangerously hot. For those with outdoor plans next week make sure to practice good heat safety and if possible limit outdoor exposure during the afternoon hours. The one change in the long term period forecast is that high pressure is more centered over Alabama which would limit any afternoon convection. Hence, PoPs have decreased Tuesday and Wednesday resulting in a dry forecast. There is still a low chance of afternoon showers and storms both Thursday and Friday, but given no significant forcing mechanism in place, coverage should be quite low.

AVIATION

(18Z TAFS) Issued at 1237 PM CDT Sat Sep 12 2026

Area ceilings in the MVFR(1000-3000ft AGL) and VFR(>3000ft AGL) range at TAF issuance should become VFR this afternoon into the evening. An exception could be a result of SHRA/TSRA developing. An area of convection moving eastward over northern AL could reach KHSV in the next couple of hours, so added a TEMPO for -TSRA at that terminal. Activity west of KMSL continued to show a weakening trend, therefore was not added to their TAF. Showers should dissipate as we go into the evening. Depending how much and where wetting rain falls, fog development could occur. Have enough confidence for MVFR(3-6SM) VSBY reductions before daybreak Sun. Fog that forms should dissipate shortly after sunrise with VFR conditions forecast thereafter.

HUN WATCHES/WARNINGS/ADVISORIES

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