textproduct: Huntsville

KEY MESSAGES

Updated at 953 PM CST Sun Jan 18 2026

- A cold/dry air mass will remain in place through mid week, with below normal temperatures favored through Tuesday.

- A weak disturbance will bring low chances of precipitation to the region from late Wednesday afternoon through Thursday morning.

- Monitoring a disturbance this weekend, during which the Tennessee Valley has a low chance of seeing wintry precipitation; high uncertainty remains.

NEAR TERM

(Rest of tonight and Monday) Issued at 953 PM CST Sun Jan 18 2026

A cold, tranquil night is forecast throughout the TN Valley as sfc high pressure supports clear skies. Low temperatures early Monday morning are forecast to drop into the lower 20s, which is around 10 degrees below normal for this time of year. Below normal temperatures continue into Monday as highs top out in the upper 30s to lower 40s. An increased pressure gradient over the area will result in breezy conditions through the afternoon into the evening hours with gusts up to 15-20 mph. Be sure to bundle up in multiple layers if heading outdoors!

SHORT TERM

(Monday night through Wednesday night) Issued at 953 PM CST Sun Jan 18 2026

Monday night is forecast to be the coldest early this week as low temperatures plummet into the mid teens. This will be followed by one more day of below-normal temperatures before a gradual warming trend begins mid week. Our attention then shifts from cold weather to rain chances returning as a shortwave trough is forecast to shift southeast into the OH River Valley. In turn, a weak cold front is forecast to shift through our area- bringing medium chances (40-60%) of rainfall late Wednesday afternoon through the evening hours. While there were previous indicators this could begin as a rain/snow mix, temperatures have trended too high to support any winter precipitation mixing in. Highs on Wednesday are forecast to reach the upper 40s to lower 50s, which is more seasonal for this time of year.

LONG TERM

(Thursday through Sunday) Issued at 953 PM CST Sun Jan 18 2026

As sfc high pressure shifts eastward into the Tennessee Valley, southerly flow returns and allows an increase in moisture ahead of this weekend. Our next chance of precipitation returns on Friday night as a sfc low pushes northeastward out of the southern Plains with an accompanying arctic front. This will be the driver of below normal temperatures returning to the forecast as well as precipitation chances. There is far too much uncertainty at this time to forecast exact precipitation type or accumulation for the system this weekend. However, we are continuing to monitor trends for a low threat of potential winter precipitation and encourage everyone to check back in as the week continues.

AVIATION

(06Z TAFS) Issued at 1158 PM CST Sun Jan 18 2026

Clear skies and a WSW wind arnd 5 kts will be the prevailing conditions at the HSV/MSL terminals thru the early morning hours, and although a brisk NW low-level jet may result in occasional LLWS thru 12Z, conditions appear too marginal to include this in the official forecast. The leading edge of a reinforcing arctic high (currently across the northern Plains) will arrive by 14Z, resulting in a wind shift to NW, with speeds strengthening to 8G16 kts for much of the late morning/aftn (before veering to NNE and subsiding after sunset). A notable increase in cloud coverage is also anticipated during this timeframe (related to an upper- lvl disturbance digging southeastward from the northern Plains into the OH Valley). However, the majority of the clouds will come in the form of As/Cs (atop sct Cu) that should gradually dissipate toward the end of the TAF period.

HUN WATCHES/WARNINGS/ADVISORIES

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