Sidney, Montana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

984
FXUS65 KGGW 091038
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
438 AM MDT Mon Jun 9 2025

.DISCUSSION...

KEY MESSAGES:

- Haze and smoke from Canadian wildfire will ebb and flow through
  the region off and on. The next big wave of likely unhealthy
  smoke will arrive early Tuesday morning behind a cold front.

- A weather pattern change midweek will result in more favorable
  conditions for organized thunderstorms, beginning on Tuesday
  evening.

WEATHER PATTERN OVERVIEW:

Sunny, yet hazy skies prevail across our region as the deep low
pressure system over the upper Great Lakes continues to move
eastward and the flow pattern aloft become more zonal (from the
west). This will allow warmer and drier weather to persist,
although without the recent gusty winds. Therefore, fire weather
concerns will ease. Hottest day will be today, with high
temperatures near 90 degrees.

Tuesday evening and beyond, region-wide conditions set up for
organized summertime thunderstorms, with higher humidity from the
south/southeast and troughing/southwest flow moving in from the
Pacific Northwest. Models are hinting at strong thunderstorms
from our southwest on Wednesday evening.

FORECAST CONFIDENCE & DEVIATIONS:
Confidence is increasing for organized thunderstorm activity
beginning around the middle of next week.

Used a blend of hi-res short term consensus models for wind and
pops now through Day 2. All other grids used the NBM.


&&

.AVIATION...
VFR with sunny and hazy skies through most of the cycle. A band of
haze and smoke from Canadian wildfires will move across the
region today from west to east. A stronger area of smoke will push
south early tuesday morning and could drop conditions to MVFR.

&&

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

$$

weather.gov/glasgow