textproduct: Aberdeen

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

KEY MESSAGES

- There is a 20-40% chance of thunderstorms this evening into the overnight hours across northeast SD and into west central MN. No severe weather is expected at this time.

- The next chance of widespread precipitation is Saturday into Sunday with the chance of more than an inch of accumulation between 40 and 50% around and south of 1-90.

- Temperatures stay in the average to below average range with today and Sunday as the coolest.

DISCUSSION

Issued at 125 AM CDT Thu Jun 18 2026

As of 1 AM CDT, temperatures around the region are in the mid 50s with winds out of the northwest at about 10-15 mph. Some showers and weak thunderstorms continue to move south out of North Dakota and across northeast SD. These are expected to continue for a couple more hours. Showers and weak thunderstorms return this evening into the overnight hours across northeast SD. No severe weather is expected at this time.

The rest of the work week looks to be quiet and dry with today staying a little cooler. The next chance for widespread precipitation is Saturday. Pops move into central SD Saturday afternoon and spread northeast into portions of northeastern SD through the evening. Some showers may linger into Sunday morning. While our CWA is not currently in a severe outlook, there is potential for some storms to become severe. The chance of more than a quarter inch in accumulation is greater than 50% along and southwest of a line from approximately Lemmon to Brookings. South central SD has a 40 to 50% chance of more than an inch of accumulation. 20-40% pops return most afternoons for the remainder of the period as we move into a more active pattern.

Temperatures through the period continue to stay in the around to slightly below average range. Today and Sunday look to be the coolest at 10-15 degrees below average. Winds Friday between the Missouri and James Rivers could gust to 35 mph along and behind a cold front moving northwest to southeast across SD. Other than this and some gusts of 25 to 30 mph west river Saturday, winds look to stay below 25 mph through the period.

AVIATION /06Z TAFS THROUGH 06Z FRIDAY/

Issued at 1225 AM CDT Thu Jun 18 2026

Terminals KABR,KATY,KPIR,KMBG

VFR conditions are expected to prevail through this evening.

ABR WATCHES/WARNINGS/ADVISORIES

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

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