textproduct: Huntsville

KEY MESSAGES

Updated at 919 PM CDT Wed Apr 30 2026

- Medium to high chances of rain tonight. Rainfall totals between 0.25" to 0.5" are forecast.

- A much cooler air mass will arrive this weekend, with daytime highs in the mid to upper 60s and overnight lows in the 40s.

NEAR TERM

(Today) Issued at 224 AM CDT Fri May 1 2026

The TN Valley remains seated in a post frontal airmass as the cold front responsible for the rain and storms earlier this week nears the Gulf coast. High pressure over the Midwest will extend south and east throughout the day while nearly zonal flow exists aloft. Upper level flow will back slightly as a weak boundary nears the area later this afternoon. Dense high clouds are expected to stick around today, helping keep temps on the cooler side with highs in the upper 60s/lower 70s. There is a very low chance we see a shower or two south of the TN River before sunset but the majority of the area should stay dry through the daytime hours.

SHORT TERM

(Tonight through Sunday night) Issued at 919 PM CDT Thu Apr 30 2026

The area of low pressure along the MS/AL Gulf Coast will begin to interact with a broad upper-trough swinging through the Mid South and Tennessee Valley Friday night into early Saturday morning. As a result of this added forcing, medium to high (50-80%) chances for showers and a few elevated thunderstorms are forecast to spread across the region during this overnight window. The lack of deep moisture recovery will limit rainfall production somewhat, but still think another wetting rain is likely in most locations. Storm total amounts of around 0.25" to 0.5" in most areas in northern Alabama, with some lower amounts progged across southern middle Tennessee.

The aforementioned trough will swing across the Tennessee Valley late Friday night, clearing the area Saturday morning. In its wake another shot of cooler air will push into the region. Due to the breezy northerly winds, temperatures will struggle to climb above the mid 60s across much of the area Saturday afternoon. A good setup for radiational cooling as temperatures will fall back into the lower 40s by early Sunday morning. A few locations in sheltered valleys of southern middle Tennessee could slip into the upper 30s. A broad area of high pressure will attempt to build into the area on Sunday and with plenty of sunshine highs will climb back into the 70s.

LONG TERM

(Monday through Thursday) Issued at 919 PM CDT Thu Apr 30 2026

As surface high pressure maintains its hold over the Southeast on Monday and the upper level flow is relatively zonal, benign weather will comprise the early portion of the work week. Although, an upper trough will begin to pivot from the north-central CONUS down into the Ohio and Tennessee valleys through midweek. Meanwhile, as a surface low develops and slides over New England, a trailing cold front looks to traverse the Tennessee Valley between Wednesday and Thursday morning. Ultimately, expect rain chances to return Tuesday evening and peak on Wednesday (40-60%). Taking a look at strong to severe storm potential, ample bulk shear is currently shown by global models on Wednesday; however, instability looks to be fairly low. What we'll be watching closely is the timing of this system through the region. If it swings over the Tennessee Valley moreso during the day on Wednesday, there likely will be higher instability than the global models are depicting at the moment. However, if it's later (Wednesday evening/night) as our current forecast suggests, then the amount of instability will be less, resulting in a lower severe weather threat. Stay tuned as we refine details in the coming days!

As for temperatures, highs will warm back into the upper 70s to around 80 degrees through midweek. Lows will also warm back into the mid 50s to lower 60s come Tuesday night. Although, a cool down is in store after FROPA Wednesday/Wednesday night. Lows Wednesday night are currently forecast to drop into the lower to mid 50s, with highs on Thursday topping out in the upper 60s to lower 70s. Even cooler temperatures may then follow beyond Thursday!

AVIATION

(12Z TAFS) Issued at 607 AM CDT Fri May 1 2026

VFR conditions will persist through much of the TAF period with a low to medium chance for rain during the early morning hours on Saturday. PROB30 groups were added at both terminals for rain and MVFR conditions between 05-08z.

HUN WATCHES/WARNINGS/ADVISORIES

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