308
FXUS65 KGGW 080842
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
242 AM MDT Wed Oct 8 2025

.DISCUSSION...

KEY MESSAGES:
- Expect a gradual warmup through the midweek with dry weather
 conditions.

- The next chance for rain showers looks to arrive over the
  weekend, but greater probabilities and higher amounts will
  remain over the mountains of western and central Montana.


WEATHER PATTERN OVERVIEW:
NE Montana will remain under the influence of an upper ridge
pattern over the next few days. As the flow aloft transitions more
to the southwest as the ridge slides east, expect warmer
temperatures to spread across the northern High Plains. Large
scale subsidence should be more than enough to drive mainly dry
weather conditions over the area for this duration.

As this ridge continues to drift downstream, a Pacific NW trough
and closed low will deepen and become a greater influence on the
weather across NE Montana. This system will track east with cool
and wet weather for the weekend. There is a chance for a Lake Wind
Advisory behind the frontal passage Saturday night into Sunday.

As it stands, ensembles show a few hundredths to a tenth of an
inch or so of QPF for most areas, with the most significant
precipitation over the mountain regions of Montana where a little
accumulating snow is possible. That said, temperatures may be cold
enough for snow or a mix, especially for higher terrain in the
southwest zones such as the Little Rockies by Sunday night, if any
precipitation lingers.


FORECAST CONFIDENCE & DEVIATIONS:
NBM was largely followed for the forecast this cycle with little
deviation needed from baseline.

High confidence on warm and dry conditions over the next couple
of days with a trend toward cooler and wetter weather post
Saturday.

Low confidence to moderate confidence precipitation timing.

Low confidence in snow across the Little Rockies Sunday night.


&&

.AVIATION...
LAST UPDATE: 0815Z

FLIGHT CAT RANGE: VFR.

DISCUSSION: Clear skies will prevail tonight, resulting in
excellent flying weather.

WIND: S to SE at 5 and 15 kts through this afternoon. Then light
and variable this evening through tonight.

/GAH


&&

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


&&

$$

weather.gov/glasgow