Sidney, Montana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

949
FXUS65 KGGW 262013
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
213 PM MDT Thu Jun 26 2025

.DISCUSSION...

KEY MESSAGES:

- Today scattered rain showers and isolated thunderstorms will
  will return again. Some storms may be strong to severe.

- This weekend and into early next week, a ridge of high pressure
  will slowly move into our region from the south, bringing warmer
  and drier conditions.

WEATHER PATTERN OVERVIEW:

Weather conditions today continue to be characterized by an axis
of instability interacting with a weak embedded short wave moving
across the region. Marginally severe thunderstorms are expected
again today, while interacting with a weak front moving across
eastern Montana.

Later this weekend and especially by Monday, an upper level ridge
of high pressure builds into the Great Basin with temperatures
warming again. The position of the surface high will generally
keep our region dry.

By the middle of next week, the pattern turns more active with
another trough of low pressure moving into the Pacific Northwest.

FORECAST CONFIDENCE & DEVIATIONS:

Due to the weak forcing in place, confidence is less than average in
the exact details of storm timing and placement and movement.

Deviated from the strict NBM to include more HiRes model data to
better represent these details in the immediate short term (Day 1
through Day 2).



&&

.AVIATION...

Generally, VFR conditions, but IFR is possible if an isolated
thunderstorm happens to pass directly overhead, during the
afternoon and evening hours. Gusty and erratic winds are also
possible.



&&

.GGW WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

weather.gov/glasgow