textproduct: Aberdeen

KEY MESSAGES

- Cooler temperatures will be around today, with highs in the 70s and lows tonight in the 50s. Temperatures will warm slightly into Wednesday, with highs in the upper 70s to mid 80s. Temperatures will then continue to warm back up into the weekend.

UPDATE

Issued at 1211 PM CDT Tue Aug 4 2026

See below for an aviation forecast discussion for the 18Z TAFs.

UPDATE Issued at 901 AM CDT Tue Aug 4 2026

Will be watching to see if the lingering baroclinic zone across southern South Dakota between 700-500hpa underneath the southern fringe of a 100kt upper level jet streak over southern North Dakota will interact sufficiently enough to produce scattered showers today mainly south of U.S. Highway 14, or just sprinkles/virga, owing to how dry the surface to 10kft layer of air is this morning. May need to add in some small PoPs across the southern third of forecast zones before it's all said and done. Otherwise, no other changes planned to the forecast today. Widespread lows in the 40s across the CWA this morning indicating how cool/dry the airmass is that's in place right now. Will likely have to undercut guidance for low temperatures later tonight/early Wednesday morning.

UPDATE Issued at 623 AM CDT Tue Aug 4 2026

Aviation discussion updated below for the 12Z TAFs.

DISCUSSION

Issued at 124 AM CDT Tue Aug 4 2026

There could be some light sprinkles early this morning over south central SD lingering behind a cold front that pushed through last night. Other than these sprinkles, high surface pressure will be moving over SD today through Wednesday. This high pressure will help to keep rain and storms chances out of central and northeastern SD through Wednesday. The wildfire smoke that moved in yesterday has been slowly pushed south by the northerly winds behind the cold front. There might be some lingering light concentrations of smoke at the surface early this morning which will be pushed south out of central and northeastern SD during the morning. There will continue to be some wildfire smoke aloft into Wednesday, which could create some hazy skies at times.

The lingering colder air that was pushed into SD by the cold front will continue to keep temperatures today 5 to 15 degrees colder than normal for this time of the year. Highs across central and northeastern SD and west central MN will be in the 70s with lows tonight dropping into the 50s. While the minimum relative humidity this afternoon gets down into the low to mid 20s over north central SD, weaker winds only gusting up to 20 mph will help to keep the fire weather concerns lower.

A somewhat flat upper-level ridge will be moving in over SD Wednesday through the rest of the week. This ridge will help to push a little bit warmer air into SD, causing temperatures to rise back up to be around normal. Highs will rise into the 80s then the low 90s over central SD Wednesday into the weekend, with northeastern SD in the upper 70s to 80s. Models hint at a couple of small upper- level shortwaves that move over SD Thursday and onward. This could cause a few surface boundaries to move over the state as well as the next chance for some scattered showers. While the models hint that Thursday night might see some rain, there is variation in the models as to if any of this happens. These potential shortwaves and showers will need to have an eye kept on them to see if models start to come to an agreement over the next few days.

AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/

Issued at 1206 PM CDT Tue Aug 4 2026

Terminals KABR,KATY,KPIR,KMBG

VFR conditions are forecast through the TAF period.

ABR WATCHES/WARNINGS/ADVISORIES

SD...None. MN...None.