textproduct: Huntsville

KEY MESSAGES

Updated at 927 AM CDT Tue Jun 23 2026

- Areas of dense fog are expected tonight into early Wednesday morning, with more fog expected Wednesday night.

- Low chances of showers and thunderstorms Thursday into Friday, mainly in southern TN and northeast AL.

- Major (Level 3) Heat Risk develops Sunday into Monday with Heat Index values of 100 up to around 105 degrees.

NEAR TERM

(Tonight) Issued at 148 PM CDT Tue Jun 23 2026

Cellular cumulus was gradually decreasing this afternoon and should be gone by this evening. Thus, with high pressure moving into the region, expecting a decent night for fog development late tonight. So, not significant changes to previous thinking of the forecast.

Previous Discussion... Issued at 322 AM CDT Tue Jun 23 2026

Low clouds continue to remain entrenched over northern Alabama and southern middle Tennessee this morning. Temperatures should be cooler when you wake up this morning, dropping into the lower to mid 60s. Expect cloudy conditions to linger until around noon before breaking up. Sunshine this afternoon with weak cold air advection will push highs into the the upper 70s to lower 80s. So, thankfully a nice day after the inclement weather yesterday.

SHORT TERM

(Wednesday through Thursday) Issued at 927 AM CDT Tue Jun 23 2026

The storm/MCS track should stay to our southwest Wednesday into Thursday. However, we will have to monitor Thursday a bit more for light precipitation with deeper moisture due to southerly flow. Fog may be an issue once again Wednesday night as well, unless low clouds overspread the area first. Highs Wednesday will be in the lower to middle 80s with lows Wednesday night in the middle to upper 60s.

LONG TERM

(Thursday night through Monday) Issued at 945 PM CDT Mon Jun 22 2026

The primary concern for the long term period is heat. As an upper level ridge shifts eastward into the area along with sfc high pressure over the Gulf, a warming pattern will take shape through the weekend with highs reaching the upper 80s to lower 90s (with some spots in the mid 90s on Monday). These temperatures are near normal for this time of year, however, overnight lows will be ~5 degrees above normal with temperatures dropping into the low to mid 70s. Heat index temperatures are forecast to reach the upper 90s to around 103 degrees. We will also be monitoring Heat Index values Monday, especially, as we near criteria for a Heat Advisory. NWS HeatRisk highlights the area in a Moderate to Major risk, which means heat will likely affect anyone sensitive to heat (especially those without adequate cooling/hydration) as well as some health systems and industries. If you have outdoor plans this weekend, be sure to practice heat safety such as staying hydrated and seeking shade when outdoors to avoid heat related illness.

AVIATION

(18Z TAFS) Issued at 1115 AM CDT Tue Jun 23 2026

VFR flight weather conditions are forecast. Any remaining scattered clouds will clear by 00Z if not earlier. Patchy to areas of FG/BR are expected tonight, but confidence in KHSV or KMSL remains uncertain at this time. This may need adjustments in the next issuance.

HUN WATCHES/WARNINGS/ADVISORIES

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