textproduct: Huntsville

KEY MESSAGES

Updated at 901 PM CST Fri Nov 6 2026

- Low temperatures will fall into the mid to upper 30s Saturday night and the low to mid 30s Sunday night.

- Patchy to widespread frost is possible if winds can decouple early Sunday and Monday mornings, but confidence is low to moderate.

NEAR TERM

(Today) Issued at 348 AM CST Sat Nov 7 2026

A decaying mid-level shear axis will continue to shift eastward across the TN Valley early this morning in the flow around a closed cyclone that will track eastward over the northern Mid- Atlantic states later today. Widespread low stratus clouds which evolved within the low-level thermal trough beneath this feature are beginning to disperse (based on latest satellite data), but the combination of clouds and NNE winds around 10 MPH (driven by a 3-4 mb pressure gradient) will keep low temperatures this morning in the l-m 40s (with no risk for fog development). Winds will gradually strengthen after sunrise as the stratus layer continues to erode, but should subside once again by late afternoon as high pressure expands eastward into the OH/TN Valleys from the central Plains. Although a brief period of sunny skies may occur later this morning, WNW flow aloft of 25-35 knots (in the wake of the departing shear axis) should allow the coverage of high-level clouds to progressively increase this afternoon, and for this reason, we expect afternoon highs to only reach the l-m 60s.

SHORT TERM

(Saturday night through Monday) Issued at 901 PM CST Fri Nov 6 2026

Clear conditions will result in good radiational cooling and as a result will drop off quickly in the evening. Overnight lows should drop to the coldest of the season, with temperatures falling into the mid to upper 30s in most locations across northern Alabama, and the low to mid 30s in southern middle Tennessee. The air mass is notably dry and for this reason, think that any frost that develops will be more limited and on the patchy side late Saturday night into early Sunday morning. A Frost Advisory may be needed for portions of northern Alabama, but given the more limited confidence will hold off for now. After a clear/sunny day on Sunday, with highs in the low to mid 60s, an even better setup for radiational cooling exist. As a result, lows in the low to mid 30s will be common and a more widespread frost appears more likely, along with a light freeze in localized areas. A Frost Advisory seems more likely during this window. Those with outdoor plants should monitor the forecast and prepare to cover sensitive vegetation.

LONG TERM

(Monday night through Friday) Issued at 901 PM CST Fri Nov 6 2026

High pressure will build into the Tennessee Valley next week, promoting tranquil weather and a gradual warming trend, along with dry conditions. This will result in mostly sunny conditions each day, resulting beautiful autumn weather for early November. Highs in the upper 60s to perhaps lower 70s will be common by Tuesday and Wednesday. Later in the week, a broad upper low over the Great Lakes will send a couple of shortwave troughs and their associated dry fronts into the area. These features will bring reinforcing shots of cooler, drier air into the area, knocking highs back into the upper 50s to lower 60s and lows into the low to mid 30s. However, no precipitation is forecast to accompany these features, with some added cloud cover the only noticeable change to the weather.

AVIATION

(12Z TAFS) Issued at 544 AM CST Sat Nov 7 2026

There have been no major changes to previous aviation forecast reasoning; however, based on current sfc obs and satellite imagery, nocturnal stratus continues to rapidly dissipate and we will only include a TEMPO group at HSV (for MVFR cigs thru 14Z). Otherwise, VFR conditions will exist, with an increasing coverage of Ci expected later this morning. NNE sfc winds of 5-10 kts will back to NNW and strengthen to 10G18 kts after sunrise, before veering to NNE and falling to 5-10 kts once again by late this aftn.

HUN WATCHES/WARNINGS/ADVISORIES

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