textproduct: Bismarck

KEY MESSAGES

- A chilly night tonight, with lows dipping into the upper 30s to mid 40s.

- Some mid 30 degree readings are possible in the far southwest, which could lead to a couple hours of patchy frost late tonight into early Sunday morning.

- Near to below average temperatures through much of the upcoming week.

- Mainly dry on Sunday, then more frequent precipitation chances through the upcoming work week.

UPDATE

Issued at 108 AM CDT Sun Jun 14 2026

No changes are needed for this update. Current conditions and trends have been blended into the forecast.

UPDATE Issued at 906 PM CDT Sat Jun 13 2026

Other than parts of the far south central, skies have cleared across western through central North Dakota with the exception of a few mid and especially high clouds. All in all, the forecast remains on track with no major updates.

UPDATE Issued at 632 PM CDT Sat Jun 13 2026

With dewpoints forecast to drop into the mid 30s, the main update was to lower low temperatures in the far southwest and add a little patchy frost. It's very conditional as to whether frost develops as lingering mid to high cloud is uncertain, as is to whether or not winds will go completey calm. Otherwise, the ongoing forecast looks good as this time.

DISCUSSION

Issued at 152 PM CDT Sat Jun 13 2026

Current surface analysis places low over northeast Ontario, with high stretching from Alberta through central Montana. Upper level analysis places low over northern Ontario, with notable short wave dropping southward through the northern plains. This feature produced some rain showers earlier today over northern North Dakota, but the showers have diminished over our area.

For tonight, winds will diminish and surface high stretches into the area. This will lead to chilly lows ranging from the upper 30s to mid 40s, about 10 degrees below average.

On Sunday, a mainly quiet day is expected with most rain showers in cyclonic flow aloft remaining to our east, though can't rule out a few sneaking into our area. Temperatures do rebound some, with highs in the upper 60s to mid 70s.

Unsettled weather returns for the upcoming work week as we end up in a perpetual cyclonic flow pattern, resulting in daily chances for showers/storms over various parts of the area. Temperatures look to remain near to below average.

AVIATION /06Z TAFS THROUGH 06Z MONDAY/

Issued at 108 AM CDT Sun Jun 14 2026

VFR conditions are expected through the forecast period. Light northwest winds overnight will increase to around 10-15 kts during the day Sunday.

BIS WATCHES/WARNINGS/ADVISORIES

None.