textproduct: Huntsville

KEY MESSAGES

Updated at 1056 PM CDT Sat Oct 17 2026

- Cooler temperatures will persist through the remainder of the weekend before a warming trend next week.

- Patchy frost may occur early Sunday and Monday mornings in a few wind-sheltered locations across southern TN and northeast AL.

NEAR TERM

(Rest of tonight and Sunday) Issued at 1056 PM CDT Sat Oct 17 2026

The Tennessee Valley continues to sit comfortably under the influence of high pressure. Temperatures will remain below normal falling to the lower 40s to even upper 30s in areas of higher terrain. Because of this and weakening gradient winds, patchy frost may form during the early morning hours in higher elevations. Be sure to grab a jacket if headed outdoors tonight or tomorrow morning!

Tomorrow will be especially nice given the calmer northerly winds and abundant sunshine. After a chilly start to the morning, afternoon temperatures will rise to near 70 degrees. Due to recent trends and observations, we have lowered dewpoints due to recent under representation of the dry air as high pressure keeps a more continental advection regime in place. Overall, it'll feel very comfortable and fall-like outside today. Enjoy!

SHORT TERM

(Sunday night through Tuesday) Issued at 1056 PM CDT Sat Oct 17 2026

While the upper air pattern won't change significantly during the short term period, upper ridging will center more over the eastern CONUS and will bring warming temperatures to the Tennessee Valley. The good news is that without the moisture advection from the Gulf, the heat will feel a lot less oppressive without the humidity we have seen in recent weeks. Afternoon highs will rise into the low/mid 70s Monday and then into the mid/upper 70s on Tuesday. Clear skies and light winds will allow for good radiational cooling, allowing for overnight lows in the upper 30s to mid 40s.

LONG TERM

(Tuesday night through Saturday) Issued at 1056 PM CDT Sat Oct 17 2026

Upper level ridging will persist over the Southeast to begin the long term period; however, synoptic guidance suggests that the upper trough over the eastern seaboard will amplify by late week and attempt to push westward into the South. Although, uncertainty remains if this feature will push far enough west to have much of an effect on the local area. This is due to the stout ridge over the central CONUS that looks to be pushed eastward over our region Friday into Saturday by a progressive trough over the western CONUS. Meanwhile, surface high pressure looks to largely maintain its hold over much of the eastern CONUS through the first part of next weekend. Overall, with continued subsidence from surface high pressure and proximity of upper ridging, the current forecast remains devoid of rain chances through at least early next weekend. In addition, the Fall-like weather continues with forecast highs in the mid to upper 70s and lows mainly in the mid to upper 40s.

AVIATION

(06Z TAFS) Issued at 1148 PM CDT Sat Oct 17 2026

VFR conditions will prevail through the period with light winds NNE winds and a mostly clear sky.

HUN WATCHES/WARNINGS/ADVISORIES

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