Glasgow 7 Day Weather Forecast with Current Weather Conditions for , MT." />

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Glasgow, Montana 7 Day Weather Forecast

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NWS Forecast for Glasgow MT

National Weather Service Forecast for: Glasgow MT
Issued by: National Weather Service Glasgow, MT

Updated: 1:32 pm MDT Aug 12, 2025

This Afternoon Sunny	Tonight Mostly Clear then Chance Showers	Wednesday Hot	Wednesday Night Mostly Clear	Thursday Sunny	Thursday Night Mostly Clear then Slight Chance Showers	Friday Mostly Sunny	Friday Night Partly Cloudy	Saturday Mostly Sunny
Hi 83 °F	Lo 61 °F	Hi 96 °F	Lo 59 °F	Hi 81 °F	Lo 55 °F	Hi 82 °F	Lo 59 °F	Hi 88 °F

This Afternoon	Sunny, with a high near 83. South southwest wind 5 to 7 mph becoming southeast.
Tonight	A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am. Mostly clear, with a low around 61. East southeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Wednesday	Sunny and hot, with a high near 96. East southeast wind 7 to 10 mph becoming southwest in the afternoon.
Wednesday Night	Mostly clear, with a low around 59. West southwest wind 6 to 13 mph becoming south southeast in the evening. Winds could gust as high as 21 mph.
Thursday	Sunny, with a high near 81. Northwest wind around 16 mph, with gusts as high as 25 mph.
Thursday Night	A 20 percent chance of showers after midnight. Partly cloudy, with a low around 55. Northwest wind 6 to 10 mph becoming northeast after midnight. Winds could gust as high as 18 mph.
Friday	Mostly sunny, with a high near 82. East wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night	Partly cloudy, with a low around 59. East wind around 11 mph, with gusts as high as 20 mph.
Saturday	Mostly sunny, with a high near 88. East wind around 10 mph, with gusts as high as 18 mph.
Saturday Night	A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63. East wind 8 to 10 mph.
Sunday	Mostly sunny, with a high near 90. East wind 8 to 10 mph, with gusts as high as 18 mph.
Sunday Night	A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Monday	A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90.

Forecast from NOAA-NWS for Glasgow MT.

Weather Forecast Discussion

234
FXUS65 KGGW 121923
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
123 PM MDT Tue Aug 12 2025

.DISCUSSION...

KEY MESSAGES:

- Mainly dry conditions are expected through Friday. Chances for
  thunderstorms increase this weekend.

- Hot Wednesday then cooler Thursday as a strong cold front moves
 through Wednesday night/early Thursday.

WEATHER PATTERN OVERVIEW:

Northwest flow will begin to flatten out as a trough drops into
western Canada. This will pull warmer air into the region, with
temperatures peaking on Wednesday just ahead of the trough
crossing the Rockies. Surface low spins up over southern Alberta
with the upper trough, and will push a cold front into Montana
Thursday morning.

While a few showers or thunderstorms are not out of the question
with this next system, most of the moisture and energy will be
over the Canadian prairies, closer to the low pressure.

A zonal flow Thursday and Friday will keep the hot airmass to our
south. By the weekend, southwest flow and ridging along the
northern Rockies will increase temperatures could increase
thunderstorm chances. Humidity looks to increase as the upper flow
turns more from the south, so any thunderstorm could bring heavy
rainfall.

FORECAST CONFIDENCE & DEVIATIONS:

Mainly followed NBM but did blend other data for pops for tonight.
Also added mention of gusty winds with the thunderstorms tonight
as the 12z HREF was showing the potential of gusts to 50-60 kts.
Also increased winds late Wednesday night and Thursday with the
cold front. TFJ

&&

.AVIATION...
Updated: 1930z

FLIGHT Category: VFR.

DISCUSSION: A weak disturbance is expected to move east through
the area tonight that is expected to kick off isolated/scattered
showers and thunderstorms. An isolated thunderstorm could contain
a wind gust to about 40 kts.

Otherwise, showers will move out Wednesday morning for mainly
clear conditions. A cold front will move in late Wednesday
night/early Thursday that will bring a wind switch and some
clouds. TFJ


&&

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

$$

weather.gov/glasgow

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Forecast Discussion from: NOAA-NWS

Script developed by: El Dorado Weather

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