What is today's weather forecast for South Glastonbury, MT?

Today's forecast for South Glastonbury shows a high of 40 degrees Fahrenheit. A 50 percent chance of snow after noon.

What is the 7-day weather forecast for South Glastonbury, MT?

The 7-day forecast for South Glastonbury shows highs from 36 to 50 degrees and lows from 19 to 36 degrees Fahrenheit. Expect precipitation on 6 days with chances of 20% or higher.

Will it rain in South Glastonbury, MT this week?

Yes, rain is possible in South Glastonbury this week. Precipitation chances: Thursday (70% chance), Friday (90% chance), Sunday (50% chance), Monday (70% chance), Tuesday (30% chance), Wednesday (30% chance).

How accurate is the South Glastonbury weather forecast?

WeatherForYou provides highly accurate South Glastonbury forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

South Glastonbury, MT Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

6°F
Feels Like -12°F

Humidity 76% Dew Point 0°F Wind W 16 MPH Gusts 33 Barometer N/A

Report from a MADIS/MESONET weather station 10.3 mi. NW of central South Glastonbury
at 4:00 AM Thu, Dec 18, 2025

Point Forecast at a Glance

ThuDec 18

50%

FriDec 19

90%

SatDec 20

SunDec 21

40%

MonDec 22

70%

TueDec 23

30%

WedDec 24

30%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Warming trend through the week with high temperatures climbing from 40°F to 50°F. Unsettled weather expected with wintry mix likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 12°F above the historical average for December. Normal highs for this period are around 32°F with lows around 14°F.

This Date in Weather History

1944 - Typhoon Cobra, also known as the Typhoon of 1944 or Halsey's Typhoon, was the United States Navy designation for a tropical cyclone that struck the Task Force 38 in the during World War II in the Pacific. The typhoon was first observed on December 17 as it surprised a fleet of ships in the open waters of the western Pacific Ocean. Sustained winds associated with the storm were up to 100 mph with gusts to 140 mph. On December 18, the small but violent typhoon hit the Task Force while many of the ships were attempting to refuel. Due to the extreme seas and winds, three destroyers capsized and went down with practically all hands, while a cruiser, five aircraft carriers, and three destroyers suffered serious damage. Approximately 790 officers and men were lost or killed with another 80 injured. This storm inflicted more damage on the Navy than any storm since the hurricane at Apia, Samoa, in 1889.

South Glastonbury, MT 7 Day Weather Forecast Details

Thursday Dec 18

Day: A 50 percent chance of snow after noon. Mostly cloudy, with a high near 40. South wind 13 to 18 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 40 mph. Total daytime snow accumulation of less than a half inch possible.

Night: Snow likely before 10pm, then snow likely, possibly mixed with rain between 10pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a temperature rising to around 45 by 3am. South southwest wind 29 to 32 mph, with gusts as high as 46 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday Dec 19

Day: Rain. Temperature rising to near 47 by noon, then falling to around 39 during the remainder of the day. South southwest wind 32 to 38 mph, with gusts as high as 55 mph. Chance of precipitation is 90%.

Night: Snow likely, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Northwest wind 11 to 21 mph becoming west southwest after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday Dec 20

Day: Sunny, with a high near 36. Southwest wind 13 to 21 mph.

Night: Partly cloudy, with a low around 22. South wind 16 to 18 mph.

Sunday Dec 21

Day: A slight chance of snow before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 46. South wind 15 to 18 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Night: A 50 percent chance of rain. Mostly cloudy, with a low around 36. South wind around 18 mph.

Monday Dec 22

Day: Rain likely. Mostly cloudy, with a high near 47. South southwest wind 17 to 21 mph. Chance of precipitation is 70%.

Night: A chance of rain and snow. Mostly cloudy, with a low around 33. South wind 14 to 17 mph. Chance of precipitation is 40%.

Tuesday Dec 23

Day: A chance of rain and snow. Partly sunny, with a high near 47. South wind 14 to 17 mph. Chance of precipitation is 30%.

Night: A slight chance of rain and snow. Mostly cloudy, with a low around 34. South wind around 14 mph. Chance of precipitation is 20%.

Wednesday Dec 24

Day: A chance of rain and snow. Partly sunny, with a high near 50. South wind 14 to 20 mph. Chance of precipitation is 30%.

About South Glastonbury, MT

South Glastonbury is a census-designated place in Park County, Montana, United States. Its population was 277 as of the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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