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Shaded-relief atlas plate of Fort Gratiot, Michigan: rivers, roads, the city limits and where the water drains.
MICHIGAN · ST. CLAIR COUNTY

Fort Gratiot

11,693 people, 600 ft above sea level in St. Clair County.

600 ftElevation, city center
11,693People, 2024 estimate
16 sq miLand area
Sunny 72°
Sunny now Dew point 54° · NE 7 mph · high 73°
City of Fort Gratiot River Interstate 2 miles
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The Fort Gratiot 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 Fort Gratiot

NWS forecast and National Blend of Models · updated 4:00 PM EDT
RIGHT NOW St Clair County International Airport (CYZR) · 4:00 PM
Sunny
72° Sunny Feels like 72° · high of 73° near 4 PM
WindNE 7 mphno gusts
Humidity53%rising to 87% by morning
Pressure30.02 in →steady
Visibility9 mihazy
CloudsClear
UV index—no forecast
Dew point 54° · Dry62° by Thursday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Mostly cloudy
Tomorrow, about 9 PMin about 28 hours · 62% chance · rain
LIKELY AMOUNT0.07–0.4 inmost likely 0.3; 1 in 10 over 0.5
LAST RAINSept. 200.1 in · 9 dry days
ALERTS & OUTLOOKS
No watches or warnings for St. Clair County
NWS Detroit/Pontiac and the Storm Prediction Center · checked 4:50 PM
SUN & MOON
↑ 7:24 AM7:15 PM ↓
11 h 50 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
55
MODERATEAir quality index · fine particles
Tomorrow: None, moderate. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
TUESDAY, SEPT. 29
WEDNESDAY, SEPT. 30
THURSDAY, OCT. 1
FRIDAY, OCT. 2
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
mostly sunny
clear night
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
rain
rain
rain
rain
mostly cloudy day
mostly cloudy day
rain
rain
rain
rain
rain
rain
rain
showers day
TEMPERATURE °F
73°
58°
70°
63°
71°
55°
CHANCE OF RAIN
88% · 0.97 in Thursday night 50%
WIND, MPH
5
3
2
0
3
5
7
7
7
7
6
5
5
5
7
7
5
0
0
0
6
6
7
8
HOW IT FEELS · DEW POINT
Dry: dew points 47 to 62°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
TUE Sept. 29 Mostly sunny Mostly sunny
73° 56°
0% rain — S 5 A
WED Sept. 30 Chance of showers Chance of showers
71° 60°
50% rain 0.07–0.4″ SSW 7 B
THU Oct. 1 Showers likely Showers likely
73° 55°
90% rain 0.7–1.6″ SW 6 C
FRI Oct. 2 Chance of showers; cooler Chance of showers; cooler
65° 44°
40% rain — N 1 B
SAT Oct. 3 Mostly sunny Mostly sunny
63° 42°
0% rain — ENE 5 B
SUN Oct. 4 Partly cloudy Partly cloudy
65° 42°
0% rain — NW 5 B
MON Oct. 5 Mostly sunny Mostly sunny
59° 38°
0% rain — NNW 5 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 Fort Gratiot about 5,000 feet above the ground was over the central Plains three days ago, and over the Great Lakes a day ago, about 1,080 miles back along its path. Most of the nine paths traced from around the city agree. Near the ground the air came from Quebec; at 10,000 feet, from the California coast. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

MILE7
ON THE NETWORK

Around Fort Gratiot on the Forecast Network

Neighboring plates

Macomb MI · 34 MI 34 miles southwest Clinton MI · 38 MI 38 miles southwest Detroit MI · 56 MI 56 miles southwest Toledo OH · 111 MI 111 miles southwest Cleveland OH · 116 MI 116 miles south Buffalo NY · 184 MI 184 miles east
FORECASTCITY
Atlas plate of Fort Gratiot, Michigan. Explore the plate
MICHIGAN · ST. CLAIR

Fort Gratiot

11,693 people, 600 ft above sea level in St. Clair County.

600 ftElevation
11,693People
16 sq miLand
Sunny 72°
SunnyDew point 54°
1

Today in Fort Gratiot

NEXT 15 HOURS
Now mostly sunny 73° 0%
7p mostly clear night 68° 0%
10p partly cloudy night 61° 0%
1a partly cloudy night 59° 0%
4a partly cloudy night 58° 0%
7a mostly cloudy day 58° 1%
Mostly cloudy
NEXT RAINTomorrow about 9 PM · 62%
→
Tue0%
Mostly sunny Mostly sunny
56
73
A
Wed50%
Chance of showers Chance of showers
60
71
B
Thu90%
Showers likely Showers likely
55
73
C
Fri40%
Chance of showers; cooler Chance of showers; cooler
44
65
B
Sat0%
Mostly sunny Mostly sunny
42
63
B
Sun0%
Partly cloudy Partly cloudy
42
65
B
Mon0%
Mostly sunny Mostly sunny
38
59
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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