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Shaded-relief map of Glasgow, Montana: rivers, roads, the city limits and where the water drains.
MONTANA · VALLEY COUNTY

Glasgow

3,169 people, 2,120 ft above sea level in Valley County.

2,120 ftElevation, city center
3,169People, 2024 estimate
1 sq miLand area
Sunny 47°
Sunny now Dew point 39° · ESE 13 mph · high 52°
City of Glasgow River Interstate 2 miles
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The Glasgow plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Glasgow

NWS forecast and National Blend of Models · updated 11:00 AM MST
RIGHT NOW Glasgow International Airport (KGGW) · 11:53 AM
Sunny
47° Sunny Feels like 41° · high of 52° near 2 PM
WindESE 13 mphno gusts
Humidity74%falling to 61% this afternoon
Pressure29.68 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 39° · Dry30° by Monday: drier air arrives
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Tuesday30% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 20.41 in · 12 dry days
ALERTS & OUTLOOKS
No watches or warnings for Valley County
NWS Glasgow and the Storm Prediction Center · checked 12:16 PM
SUN & MOON
↑ 7:12 AM4:30 PM ↓
9 h 18 m of daylight, 3 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
38
GOODAir quality index · fine particles
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
partly cloudy day
partly cloudy day
mostly clear night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
mostly sunny
partly cloudy night
mostly cloudy night
partly cloudy night
mostly clear night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
TEMPERATURE °F
48°
32°
54°
34°
52°
38°
CHANCE OF RAIN
50%
WIND, MPH
10
8
8
6
3
6
2
0
6
7
7
5
4
1
0
0
0
0
2
4
6
8
7
7
HOW IT FEELS · DEW POINT
Dry: dew points 30 to 39°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 41° / 21°
SAT Nov. 14 Partly cloudy Partly cloudy
52° 32°
0% rain — ESE 10 A
SUN Nov. 15 Partly cloudy Partly cloudy
56° 33°
0% rain — S 3 B
MON Nov. 16 Partly cloudy Partly cloudy
54° 35°
0% rain — S 0 B
TUE Nov. 17 Chance of showers Chance of showers
51° 32°
30% rain up to 0.07″ NNE 8 C
WED Nov. 18 Chance of showers; cooler Chance of showers; cooler
41° 28°
60% rain up to 0.2″ NW 7 C
THU Nov. 19 Mostly cloudy Mostly cloudy
41° 28°
20% rain — E 8 B
FRI Nov. 20 Mostly cloudy Mostly cloudy
39° 25°
20% rain — N 8 B
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Glasgow about 5,000 feet above the ground was over the Pacific north of Hawaii three days ago, and over British Columbia a day ago, about 1,980 miles back along its path. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from the Pacific north of Hawaii. It feels dry all the same. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

THIS WEEK IN 1999 Nov. 12, 1999

The hottest this week has been

79° on Nov. 12, 1999, the hottest reading for this week of the year since 1893. Next is 69° in 1939.

69°
79°
19391999
Source: NOAA RCC-ACIS, the Glasgow Area threaded record since 1893.
MILE2
THE GROUND

What Glasgow stands on

Glasgow’s center stands about 2,120 ft above sea level. Within three miles the land runs from 2,080 ft to 2,310 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Tiger Butte, about 2,320 ft, 7 miles southeast.

Under the town center the state geologic map shows Bearpaw Formation (shale), from the Late Cretaceous, 72 to 84 million years old.

The section below crosses 2 rock units mapped at the surface.

Glasgow, cut in half from southwest to northeast

A section southwest to northeast, 24 miles through the town center
2,200 ft2,400 ft2,600 ft GLASGOW2,120 ftMilk Riverabout 2,100 ftEast Fork Cherry Creekabout 2,260 ftHigh point of the line2,640 ft ← SWNE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 34×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Bearpaw Formation

Shale. Age: Late Cretaceous, 72 to 84 million years old. About 21 mi of the line.

Alluvium

Gravel, sand, silt. Age: Pleistocene to Holocene, less than 1.8 million years old. About 3 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE3
THE WATER

Where Glasgow’s rain goes

A raindrop that lands in Glasgow reaches the Gulf of America by way of Cherry Creek, the Milk River, the Missouri and the Mississippi: about 2,990 river miles.

THE WAY DOWN, TO SCALE
Glasgow≈ 2,990 mi · the Gulf of America
FROM THE CENTER OF GLASGOW ≈ 2,990 mi to the Gulf of America Cherry Creek → Milk River → Missouri → Mississippi

Lakes on the way: Lake Oahe, Lake Sakakawea, Lake Sharpe and Lake Francis Case.

1,170 miles of the trip are on the Mississippi.

Traced down the USGS NHDPlus V2.1 river network from the Census center point of Glasgow; river miles along the main stem, rounded.

MILE5
THE ALMANAC

Glasgow’s year

1991–2020 normals · records since 1893 · Glasgow International Airport

Glasgow has a cold semi-arid climate. Summer afternoons average 86° in July; winter nights fall to about 6° in January. A normal year brings about 41 inches of snow; with the rain, that comes to about 13 inches of water.

23°6°28°10°42°21°57°33°68°43°76°53°86°58°85°57°73°47°57°34°40°21°27°10° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 TODAY GLASGOW 13.4 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average86° / 58°high / low, the warmest month
January, average23° / 6°high / low, the coldest month
Rain and melted snow13.4 inwettest months: June and May
Snow a year40.7 insnowiest: January
Hottest on record113°FJuly 31, 1900
Coldest on record−59°FFebruary 15, 1936
Wettest day on record3.26 inAugust 25, 1933
Snowiest day on record14.1 inApril 2, 1940
90° days a year26about 2 of them 100° or more
Nights at or below 32°181and 74 days that stay below freezing
Climate typeCold semi-aridKöppen BSk

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Sept. 27, to the last in spring, about May 12 (median dates)
2Highs below freezingDec. 2 to Feb. 27; normal highs stay below 32°
3Lows below freezingOct. 19 to April 14; normal lows fall below 32°
4Wettest stretchMay through July: 7.0 of the year’s 13.4 inches
NOVEMBER 14 IN THE RECORD

On November 14 Glasgow normally reaches 41° and falls to 21°. The record high is 66°, in 1939; the record low −15°, in 2014. The most rain on this date, 0.45 in, fell in 1996.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high23°28°42°57°68°76°86°85°73°57°40°27°
Normal low6°10°21°33°43°53°58°57°47°34°21°10°
Rain and melt, in0.440.350.471.012.222.831.951.271.060.920.490.43
Snow, inches9.86.25.62.50.90.00.00.00.01.55.98.3
Record high62° (1919)74° (1932)81° (1928)93° (1952)102° (1988)110° (1933)113° (1900)108° (2024)106° (2022)96° (1943)79° (1999)69° (2021)
Record low−56° (1916)−59° (1936)−45° (1897)−19° (1899)15° (1929)24° (1919)34° (1904)28° (1928)14° (1928)−8° (1905)−41° (1896)−47° (1929)

Normals 1991–2020 and records since 1893 from the Glasgow Area threaded record (Glasgow International Airport, here, 170 ft higher). NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Glasgow on the Forecast Network

Neighboring plates

FORECASTCITY
Map of Glasgow, Montana. Explore the plate
MONTANA · VALLEY

Glasgow

3,169 people, 2,120 ft above sea level in Valley County.

2,120 ftElevation
3,169People
1 sq miLand
Sunny 47°
SunnyDew point 39°
1

Today in Glasgow

NEXT 15 HOURS
Now mostly sunny 48° 0%
3p partly cloudy day 52° 0%
6p mostly clear night 43° 0%
9p partly cloudy night 39° 0%
12a partly cloudy night 37° 0%
3a partly cloudy night 35° 1%
Rain
NEXT RAINTuesday · 30%
→
Sat0%
Partly cloudy Partly cloudy
32
52
A
Sun0%
Partly cloudy Partly cloudy
33
56
B
Mon0%
Partly cloudy Partly cloudy
35
54
B
Tue30%
Chance of showers Chance of showers
32
51
C
Wed60%
Chance of showers; cooler Chance of showers; cooler
28
41
C
Thu20%
Mostly cloudy Mostly cloudy
28
41
B
Fri20%
Mostly cloudy Mostly cloudy
25
39
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1999 · NOV. 12, 1999

79°, the hottest this week of the year has been since 1893.

2

What Glasgow stands on

Glasgow’s center stands about 2,120 ft above sea level. Within three miles the land runs from 2,080 ft to 2,310 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Tiger Butte, about 2,320 ft, 7 miles southeast.

Glasgow, southwest to northeast Glasgow2,120 ftMilk Riverabout 2,100 ft ← SWNE → 24 miles through the town center; vertical exaggeration about 66×. Colors: rock at the surface.
Elevation, center2,120 ft
Within 3 miles2,080 to 2,310 ft
Lie of the landRolling (230 ft of relief)
High point nearbyTiger Butte, 2,320 ft, 7 mi southeast
Rock at the surfaceBearpaw Formation
Its ageLate Cretaceous, 72 to 84 million years old
5

Glasgow’s year

Glasgow has a cold semi-arid climate. Summer afternoons average 86° in July; winter nights fall to about 6° in January. A normal year brings about 41 inches of snow; with the rain, that comes to about 13 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 13.4 in
July, average86° / 58° · high / low, the warmest month
January, average23° / 6° · high / low, the coldest month
Rain and melted snow13.4 in · wettest months: June and May
Snow a year40.7 in · snowiest: January
Hottest on record113°F · July 31, 1900
Coldest on record−59°F · February 15, 1936
Wettest day on record3.26 in · August 25, 1933
Snowiest day on record14.1 in · April 2, 1940
90° days a year26 · about 2 of them 100° or more
Nights at or below 32°181 · and 74 days that stay below freezing
Climate typeCold semi-arid · Köppen BSk
1Freeze season · from the first fall freeze, about Sept. 27, to the last in spring, about May 12 (median dates)
2Highs below freezing · Dec. 2 to Feb. 27; normal highs stay below 32°
3Lows below freezing · Oct. 19 to April 14; normal lows fall below 32°
4Wettest stretch · May through July: 7.0 of the year’s 13.4 inches
NOVEMBER 14 IN THE RECORD

On November 14 Glasgow normally reaches 41° and falls to 21°. The record high is 66°, in 1939; the record low −15°, in 2014. The most rain on this date, 0.45 in, fell in 1996.

Normals 1991–2020 and records since 1893 from the Glasgow Area threaded record (Glasgow International Airport, here, 170 ft higher). NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 2,990 mito the Gulf of AmericaCherry Creek → Milk River → Missouri → Mississippi

A raindrop that lands in Glasgow reaches the Gulf of America by way of Cherry Creek, the Milk River, the Missouri and the Mississippi: about 2,990 river miles.

Lakes on the way: Lake Oahe, Lake Sakakawea, Lake Sharpe and Lake Francis Case.

1,170 miles of the trip are on the Mississippi.