Install
Glasgow, MT Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Tonight
Mostly clear, with a low around 36. East northeast wind around 7 mph.
-
Wednesday
Sunny, with a high near 68. East southeast wind 8 to 14 mph, with gusts as high as 23 mph.
-
Wednesday Night
Mostly clear, with a low around 42. East southeast wind 6 to 10 mph.
National Weather Service forecast updated 9 hrs ago.
Hourly
Hourly forecast- Now41°
- 2 AM40°
- 3 AM39°
- 4 AM37°
- 5 AM37°
- 6 AM37°
- 7 AM36°
- 8 AM37°
- 9 AM40°
- 10 AM46°
- 11 AM50°
- 12 PM55°
- 1 PM60°
- 2 PM64°
- 3 PM66°
- 4 PM67°
- 5 PM66°
- 6 PM64°
- 7 PM61°
- 8 PM55°
- 9 PM53°
- 10 PM51°
- 11 PM50°
- Thu12 AM49°
10-day forecast
Details- TonightOct 20Mostly Clear36°
- TodayOct 21Sunny42°68°
- ThuOct 22Sunny46°72°
- FriOct 23Light Rain Likely83%33°67°
- SatOct 24Mostly Sunny27°47°
- SunOct 25Mostly Sunny25°45°
- MonOct 26Mostly Sunny27°46°
- TueOct 27Mostly Sunny12%50°
- WedOct 28Sunny24°44°
- ThuOct 29Sunny24°41°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Montana
More weather news-
Abnormally warm air settles into Montana before big cooldown this weekendMontana is enjoying some unseasonably warm weather this week, with highs reaching the 60s and 70s across much of the state, but a cooldown is on the way. A trough of low pressure moves in Thursday night, bringing heavy…
-
A mild weather pattern holds across Montana, with changes set to arrive by end of weekNonstop Local News Montana MONTANA -Ã Continuing through Thursday, much of the state will enjoy partly to mostly sunny skies, with a few light rain showers possible in the afternoon/evening, in areas of high elevation…
-
Warming trend brings highs back into the 70s in some of MontanaNonstop Local News Montana El Niño winter conditions ahead include drier and warmer than normal outlooks for Montana This pattern can bring dry, warm weather to the north and stormy, wet, cool weather to the southern…
-
Gusty winds expected on Saturday in western MontanaKPAX News Gusty winds expected on Saturday in western Montana A mid-level jet streak will move over northern Montana on Saturday. This will bring stornger winds back to the area, with 30-40 MPH maximum gusts possible…
-
Wind and temperatures on the rise for the weekend in MontanaNonstop Local News Montana Today, we saw dense fog in western valleys this morning This yielded to widespread sunshine in the afternoon across the region Highs reached the 50s in most major areas, which is normal for…
Sun & moon
Almanac
MonthlyGlasgow Area, records since 1893. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Forecasters' discussion
From the National Weather Service office in GGW, issued 1 day ago
Key Messages
- Dry weather conditions will continue along with seasonable temperatures through the midweek.
- Precipitation chances look to increase late Thursday night into Friday.
- Cooler and drier weather expected for the weekend.
Discussion
Gusty southeast winds that had preceded the approaching upper ridge have diminished across the area allowing the Lake Wind Advisory that had been in effect across Fort Peck Lake to expire on time. Next, attention focuses on seasonably warm and dry weather as the ridge translates east through the midweek across NE Montana. High temperatures will peak on Thursday as the ridge axis begins to push downstream of the CWA.
Meanwhile, a deepening upper level trough will send southerly upper level flow across the region as a surface cold front slides through Thursday night and Friday. As Pacific moisture advances ahead of this trough, rain chances will increase behind the front Thursday night into Friday before shifting east by Saturday morning. Current ensemble means depict a quarter to a half of an inch over the CWA with lesser amounts toward Wibaux.
Look for drier albeit far cooler weather conditions for the weekend behind the departing system.
FORECAST CONFIDENCE & DEVIATIONS:
NBM held the line this forecast cycle capturing large scale trends in the short to medium term efficiently given the benign weather expected with the upper level ridge. Confidence continues to increase on precipitation chances by Friday, though details on precipitation timing and placement as well as specific amounts will come into focus as the event heads into the short term and is better resolved by high resolution models.
Aviation
LAST UPDATED: Tuesday October 20, 2026 at 0400Z.
FLIGHT CAT RANGE: VFR.
DISCUSSION: Upper ridging will guide seasonably mild and dry conditions through the midweek.
WIND: Light and variable winds will become north to northeast at 5 to 9 kts after 18Z Tuesday.
LLWS: Low level wind shear is possible Tuesday morning near KSDY and KGDV but should diminish during the afternoon.
Ggw Watches
None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.