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Shaded-relief map of Mount Pleasant, Pennsylvania: rivers, roads, the city limits and where the water drains.
PENNSYLVANIA · WESTMORELAND COUNTY

Mount Pleasant

4,150 people, 1,190 ft above sea level in Westmoreland County.

1,190 ftElevation, city center
4,150People, 2024 estimate
1 sq miLand area
Clear 38°
Clear now Dew point 30° · W 10 mph · high 40°
City of Mount Pleasant River Interstate 2 miles
Explore the plate Order a print

The Mount Pleasant 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 Mount Pleasant

NWS forecast and National Blend of Models · updated 7:00 PM EST
RIGHT NOW Pittsburgh - Allegheny County Airport (KAGC) · 7:53 PM
Clear
38° Clear Feels like 31° · high of 40° near 8 PM
WindW 10 mphgusts 18
Humidity73%rising to 96% by morning
Pressure30.10 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 30° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Clear
Not this weeknone in the forecast for a week
LIKELY AMOUNT—nothing expected
LAST RAINNov. 120.29 in · 2 dry days
ALERTS & OUTLOOKS
No watches or warnings for Westmoreland County
NWS Pittsburgh and the Storm Prediction Center · checked 8:47 PM
SUN & MOON
↑ 7:02 AM5:02 PM ↓
10 h 0 m of daylight, 2 minutes less than yesterday
Waxing crescent, 27% lit. Next full moon: Nov. 24.
AIR & POLLEN
21
GOODAir quality index · fine particles
Tomorrow: 30, good. 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
8p
11p
2a
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mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
partly cloudy night
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
partly cloudy night
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
mostly sunny
clear day
clear night
TEMPERATURE °F
40°
39°
45°
38°
47°
31°
51°
CHANCE OF RAIN
50%
WIND, MPH
12
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HOW IT FEELS · DEW POINT
Dry: dew points 30 to 38°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 52° / 36°
SAT Nov. 14 Mostly cloudy Mostly cloudy
40° 37°
0% rain — W 12 A
SUN Nov. 15 Mostly cloudy Mostly cloudy
46° 37°
30% rain — NW 9 B
MON Nov. 16 Mostly cloudy Mostly cloudy
49° 31°
0% rain — NW 5 A
TUE Nov. 17 Sunny Sunny
53° 30°
0% rain — SW 2 A
WED Nov. 18 Sunny Sunny
56° 32°
0% rain — S 3 B
THU Nov. 19 Mostly sunny Mostly sunny
59° 40°
0% rain — SSW 6 B
FRI Nov. 20 Mostly sunny Mostly sunny
60° 41°
0% rain — SW 3 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 Mount Pleasant about 5,000 feet above the ground was over British Columbia three days ago, and over the Great Lakes a day ago, about 2,600 miles back along its path. It came down from about 11,800 feet up, warming and drying as it sank. Near the ground the air came from British Columbia; at 10,000 feet, from the open Pacific. 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, SIX YEARS AGO Nov. 11, 2020

The hottest this week has been

79° on Nov. 11, 2020, the hottest reading for this week of the year since 1976. Next is 76° in 2005.

76°
79°
20052020
Source: NOAA RCC-ACIS, the Connellsville 2 SSW record since 1976.
MILE2
THE GROUND

What Mount Pleasant stands on

Mount Pleasant’s center stands about 1,190 ft above sea level. Within three miles the land runs from 1,040 ft to 1,360 ft, a difference of 320 ft: rolling country. The highest named summit within 15 miles is Painter Rock Hill, about 2,950 ft, 14 miles east-southeast.

Under the town center the state geologic map shows Monongahela Group (limestone, shale, sandstone), from the Carboniferous, 299 to 324 million years old.

The section below crosses 5 rock units mapped at the surface.

Mount Pleasant, cut in half from west to east

A section west to east, 24 miles through the town center
1,000 ft1,500 ft2,000 ft MOUNT PLEASANT1,190 ftPerryopolis970 ftLayton Hill1,440 ftEast Huntingdon1,160 ftMount Pleasant1,320 ftHigh point of the line2,210 ft ← W · PerryopolisE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 14×. 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

Glenshaw Formation

Shale. Age: Carboniferous, 299 to 324 million years old. About 7 mi of the line.

Casselman Formation

Shale, clastic. Age: Carboniferous, 299 to 324 million years old. About 6 mi of the line.

Monongahela Group

Limestone, shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.

Pottsville Formation

Sandstone, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.

Allegheny Formation

Sandstone. Age: Carboniferous, 299 to 324 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 Mount Pleasant’s rain goes

A raindrop that lands in Mount Pleasant reaches the Gulf of America by way of Shupe Run, Jacobs Creek, the Youghiogheny, the Monongahela, the Ohio and the Mississippi: about 2,010 river miles.

THE WAY DOWN, TO SCALE
Mount Pleasant≈ 2,010 mi · the Gulf of America
FROM THE CENTER OF MOUNT PLEASANT ≈ 2,010 mi to the Gulf of America Shupe Run → Jacobs Creek → Youghiogheny → Monongahela → Ohio → Mississippi

970 miles of the trip are on the Ohio.

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

MILE5
THE ALMANAC

Mount Pleasant’s year

1991–2020 normals · records since 1976 · Connellsville 2 SSW, 11 mi south-southwest

Mount Pleasant has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 21° in January. A normal year brings about 24 inches of snow; with the rain, that comes to about 47 inches of water.

38°21°42°21°51°28°64°38°73°49°80°58°84°62°83°61°77°54°66°43°53°32°43°26° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1 TODAY 46.9 in rain and snowmelt
Normal high to low, by month Rain by month Freezing
July, average84° / 62°high / low, the warmest month
January, average38° / 21°high / low, the coldest month
Rain and melted snow46.9 inwettest months: June and July
Snow a year24.4 insnowiest: January
Hottest on record99°FJune 22, 2024
Coldest on record−22°FJanuary 31, 2026
Wettest day on record4.80 inAugust 7, 2000
Climate typeHot-summer humid continentalKöppen Dfa

AROUND THE RING

1Lows below freezingNov. 13 to April 1; normal lows fall below 32°
MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high38°42°51°64°73°80°84°83°77°66°53°43°
Normal low21°21°28°38°49°58°62°61°54°43°32°26°
Rain and melt, in3.213.023.604.224.724.934.734.443.923.443.293.34
Snow, inches9.57.43.20.10.00.00.00.00.00.10.43.7

Normals 1991–2020 and records since 1976 at Connellsville 2 SSW, 11 miles south-southwest, 290 ft lower. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Mount Pleasant on the Forecast Network

Neighboring plates

Hempfield PA · 9 MI 9 miles north Pittsburgh PA · 30 MI 30 miles northwest Cleveland OH · 145 MI 145 miles northwest Washington DC · 160 MI 160 miles southeast Baltimore MD · 167 MI 167 miles east Columbus OH · 183 MI 183 miles west
FORECASTCITY
Map of Mount Pleasant, Pennsylvania. Explore the plate
PENNSYLVANIA · WESTMORELAND

Mount Pleasant

4,150 people, 1,190 ft above sea level in Westmoreland County.

1,190 ftElevation
4,150People
1 sq miLand
Clear 38°
ClearDew point 30°
1

Today in Mount Pleasant

NEXT 15 HOURS
Now mostly cloudy night 40° 3%
11p mostly cloudy night 39° 2%
2a mostly cloudy night 39° 18%
5a overcast 39° 18%
8a mostly cloudy day 39° 20%
11a mostly cloudy day 44° 5%
Clear
NEXT RAINNone this week
→
Sat0%
Mostly cloudy Mostly cloudy
37
40
A
Sun30%
Mostly cloudy Mostly cloudy
37
46
B
Mon0%
Mostly cloudy Mostly cloudy
31
49
A
Tue0%
Sunny Sunny
30
53
A
Wed0%
Sunny Sunny
32
56
B
Thu0%
Mostly sunny Mostly sunny
40
59
B
Fri0%
Mostly sunny Mostly sunny
41
60
B
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK, SIX YEARS AGO · NOV. 11, 2020

79°, the hottest this week of the year has been since 1976.

2

What Mount Pleasant stands on

Mount Pleasant’s center stands about 1,190 ft above sea level. Within three miles the land runs from 1,040 ft to 1,360 ft, a difference of 320 ft: rolling country. The highest named summit within 15 miles is Painter Rock Hill, about 2,950 ft, 14 miles east-southeast.

Mount Pleasant, west to east Mount Pleasant1,190 ftLayton Hill1,440 ft ← WE → 24 miles through the town center; vertical exaggeration about 26×. Colors: rock at the surface.
Elevation, center1,190 ft
Within 3 miles1,040 to 1,360 ft
Lie of the landRolling (320 ft of relief)
High point nearbyPainter Rock Hill, 2,950 ft, 14 mi east-southeast
Rock at the surfaceMonongahela Group
Its ageCarboniferous, 299 to 324 million years old
5

Mount Pleasant’s year

Mount Pleasant has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 21° in January. A normal year brings about 24 inches of snow; with the rain, that comes to about 47 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1 46.9 in
July, average84° / 62° · high / low, the warmest month
January, average38° / 21° · high / low, the coldest month
Rain and melted snow46.9 in · wettest months: June and July
Snow a year24.4 in · snowiest: January
Hottest on record99°F · June 22, 2024
Coldest on record−22°F · January 31, 2026
Wettest day on record4.80 in · August 7, 2000
Climate typeHot-summer humid continental · Köppen Dfa
1Lows below freezing · Nov. 13 to April 1; normal lows fall below 32°
Normals 1991–2020 and records since 1976 at Connellsville 2 SSW, 11 miles south-southwest, 290 ft lower. NOAA, through RCC-ACIS.
3

Where the rain goes

≈ 2,010 mito the Gulf of AmericaShupe Run → Jacobs Creek → Youghiogheny → Monongahela → Ohio → Mississippi

A raindrop that lands in Mount Pleasant reaches the Gulf of America by way of Shupe Run, Jacobs Creek, the Youghiogheny, the Monongahela, the Ohio and the Mississippi: about 2,010 river miles.

970 miles of the trip are on the Ohio.