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Shaded-relief map of Mars Hill, Maine: rivers, roads, the city limits and where the water drains.
MAINE · AROOSTOOK COUNTY

Mars Hill

1,317 people, 430 ft above sea level in Aroostook County.

430 ftElevation, city center
1,317People, 2024 estimate
35 sq miLand area
Sunny 36°
Sunny now Dew point 32° · NNW 6 mph · high 37°
City of Mars Hill River Interstate 2 miles
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The Mars Hill 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 Mars Hill

NWS forecast and National Blend of Models · updated 1:00 PM EST
RIGHT NOW Caribou Municipal Airport (KCAR) · 1:54 PM
Sunny
36° Sunny Feels like 31° · high of 37° near 2 PM
WindNNW 6 mphno gusts
Humidity85%falling to 76% this afternoon
Pressure29.60 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 32° · 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. 100.02 in · 4 dry days
ALERTS & OUTLOOKS
No watches or warnings for Aroostook County
NWS Caribou and the Storm Prediction Center · checked 2:16 PM
SUN & MOON
↑ 6:31 AM3:59 PM ↓
9 h 28 m of daylight, 3 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
34
GOODAir quality index · fine particles
Tomorrow: None, 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
2p
5p
8p
11p
2a
5a
8a
11a
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5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
mostly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
mostly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly clear night
partly cloudy day
mostly sunny
TEMPERATURE °F
37°
32°
37°
28°
39°
28°
CHANCE OF RAIN
50%
WIND, MPH
3
3
5
6
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HOW IT FEELS · DEW POINT
Dry: dew points 25 to 32° ↑ Humid air returns More humid: 33° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 40° / 26°
SAT Nov. 14 Mostly cloudy Mostly cloudy
37° 31°
10% rain — N 4 A
SUN Nov. 15 Mostly cloudy Mostly cloudy
37° 27°
20% rain — NW 9 B
MON Nov. 16 Partly cloudy Partly cloudy
39° 25°
0% rain — NW 8 B
TUE Nov. 17 Partly cloudy Partly cloudy
46° 33°
0% rain — W 6 A
WED Nov. 18 Partly cloudy Partly cloudy
48° 38°
0% rain — W 6 B
THU Nov. 19 Partly cloudy Partly cloudy
50° 38°
0% rain — SW 6 B
FRI Nov. 20 Partly cloudy Partly cloudy
49° 30°
10% rain — WNW 7 C
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 Mars Hill about 5,000 feet above the ground was over Canada three days ago, and over Ontario a day ago, about 2,060 miles back along its path. It came down from about 9,800 feet up, warming and drying as it sank. Near the ground the air came from the Canadian Prairies; at 10,000 feet, from Canada. It has stayed over land, which is why it feels dry. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

MILE2
THE GROUND

What Mars Hill stands on

Mars Hill’s center stands about 430 ft above sea level. Within three miles the land runs from 400 ft to 1,450 ft, a difference of 1,050 ft: steep hill country. The highest named summit within 15 miles is Mars Hill, about 1,730 ft, 3 miles east.

Under the town center the state geologic map shows Silurian - Ordovician Carys Mills Formation (siltstone, limestone), from the Late Ordovician to Silurian, 434 to 459 million years old.

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

Mars Hill, cut in half from west to east

A section west to east, 24 miles through the town center
500 ft1,000 ft MARS HILL430 ftSaint John Riverabout 240 ft ← WE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 15×. 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

Silurian unnamed sandstone

Sandstone. Age: Silurian, 422 to 445 million years old. About 7 mi of the line.

Silurian - Ordovician Carys Mills Formation

Siltstone, limestone. Age: Late Ordovician to Silurian, 434 to 459 million years old. About 7 mi of the line.

Silurian - Ordovician Mars Hill Conglomerate

Conglomerate. Age: Ordovician to Silurian, 422 to 487 million years old. About 1 mi of the line.

Ordovician Chandler Ridge Formation

Graywacke, slate. Age: Ordovician, 445 to 487 million years old. About 0.8 mi of the line.

Silurian - Ordovician unnamed pelite

Mudstone. Age: Ordovician to Silurian, 422 to 487 million years old. About 0.4 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 Mars Hill’s rain goes

A raindrop that lands in Mars Hill reaches the Bay of Fundy and the Atlantic Ocean by way of Rocky Brook, the Prestile Stream and the Saint John: about 180 river miles.

THE WAY DOWN, TO SCALE
Mars Hill≈ 180 mi · the Bay of Fundy and the Atlantic Ocean
FROM THE CENTER OF MARS HILL ≈ 180 mi to the Bay of Fundy and the Atlantic Ocean Rocky Brook → Prestile Stream → Saint John

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

MILE7
ON THE NETWORK

Around Mars Hill on the Forecast Network

Neighboring plates

FORECASTCITY
Map of Mars Hill, Maine. Explore the plate
MAINE · AROOSTOOK

Mars Hill

1,317 people, 430 ft above sea level in Aroostook County.

430 ftElevation
1,317People
35 sq miLand
Sunny 36°
SunnyDew point 32°
1

Today in Mars Hill

NEXT 15 HOURS
Now mostly cloudy day 37° 7%
5p mostly cloudy night 34° 5%
8p mostly cloudy night 33° 11%
11p mostly cloudy night 33° 10%
2a mostly cloudy night 33° 10%
5a mostly cloudy night 32° 15%
Clear
NEXT RAINNone this week
→
Sat10%
Mostly cloudy Mostly cloudy
31
37
A
Sun20%
Mostly cloudy Mostly cloudy
27
37
B
Mon0%
Partly cloudy Partly cloudy
25
39
B
Tue0%
Partly cloudy Partly cloudy
33
46
A
Wed0%
Partly cloudy Partly cloudy
38
48
B
Thu0%
Partly cloudy Partly cloudy
38
50
B
Fri10%
Partly cloudy Partly cloudy
30
49
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
2

What Mars Hill stands on

Mars Hill’s center stands about 430 ft above sea level. Within three miles the land runs from 400 ft to 1,450 ft, a difference of 1,050 ft: steep hill country. The highest named summit within 15 miles is Mars Hill, about 1,730 ft, 3 miles east.

Mars Hill, west to east Mars Hill430 ft ← WE → 24 miles through the town center; vertical exaggeration about 29×. Colors: rock at the surface.
Elevation, center430 ft
Within 3 miles400 to 1,450 ft
Lie of the landSteep hill country (1,050 ft of relief)
High point nearbyMars Hill, 1,730 ft, 3 mi east
Rock at the surfaceSilurian - Ordovician Carys Mills Formation
Its ageLate Ordovician to Silurian, 434 to 459 million years old
3

Where the rain goes

≈ 180 mito the AtlanticRocky Brook → Prestile Stream → Saint John

A raindrop that lands in Mars Hill reaches the Bay of Fundy and the Atlantic Ocean by way of Rocky Brook, the Prestile Stream and the Saint John: about 180 river miles.