textproduct: Bismarck

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

- Near average temperatures are favored to continue through next week, with Monday being a slightly warmer day.

- Medium chances (30 to 60 percent) for showers and thunderstorms late Saturday night through Monday.

UPDATE

Issued at 1236 AM CDT Sat Aug 22 2026

With high pressure settling over the region under a mostly clear sky, the overnight low temperature forecast was lowered by a few degrees. Otherwise, the forecast remains in good shape.

UPDATE Issued at 923 PM CDT Fri Aug 21 2026

A quiet night continues with no updates needed at this time.

UPDATE Issued at 621 PM CDT Fri Aug 21 2026

Showers and thundershowers have exited the forecast area. Therefore, removed any remaining PoPs early this evening. Otherwise, the forecast remains on track.

DISCUSSION

Issued at 345 PM CDT Fri Aug 21 2026

Currently, northwest flow aloft with an elongated upper level ridge stretched from the Southern Rockies into the Pacific Northwest. Embedded wave and subtle frontal boundary contributing to an area of showers/isolated thunderstorms moving south-southeast across the area this afternoon. This activity will move out of the general area over the next few hours, with a quiet night expected with sfc high pressure building in.

Surface high pressure building into the Northern Plains will result in quiet weather to start the weekend. As the sfc high develops east across the region, increasing southerly return flow will see increasing chances for showers and thunderstorms along with temperature trending warmer Sunday into Monday.

The remainder of the week will see a Rockies upper level ridge rebuilding and periodically breaking down, resulting in seasonal temperatures though periods of enhanced precipitation chances.

AVIATION /06Z TAFS THROUGH 06Z SUNDAY/

Issued at 1236 AM CDT Sat Aug 22 2026

VFR conditions are expected through the forecast period. Winds will remain light and variable in central North Dakota while becoming southeast around 10 kts in western North Dakota on Saturday.

BIS WATCHES/WARNINGS/ADVISORIES

None.

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