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Shaded-relief atlas plate of Sumner, Michigan: rivers, roads, the city limits and where the water drains.
MICHIGAN · GRATIOT COUNTY

Sumner

1,854 people, 770 ft above sea level in Gratiot County.

770 ftElevation, city center
1,854People, 2024 estimate
36 sq miLand area
Sunny 77°
Sunny now Dew point 54° · S 9 mph · high 76°
City of Sumner River Interstate 2 miles
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The Sumner 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 Sumner

NWS forecast and National Blend of Models · updated 1:00 PM EDT
RIGHT NOW Gratiot Community Airport (KAMN) · 2:35 PM
Sunny
77° Sunny Feels like 77° · high of 76° near 4 PM
WindS 9 mphno gusts
Humidity44%falling to 43% this afternoon
Pressure30.01 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 54° · Dry65° by Thursday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Mostly cloudy
Tomorrow, about 11 AMin about 20 hours · 63% chance · rain
LIKELY AMOUNT0.2–0.4 inmost likely 0.3; 1 in 10 over 0.8
LAST RAINSept. 200.31 in · 9 dry days
ALERTS & OUTLOOKS
No watches or warnings for Gratiot County
NWS Grand Rapids and the Storm Prediction Center · checked 2:48 PM
SUN & MOON
↑ 7:34 AM7:24 PM ↓
11 h 50 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
36
GOODAir 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
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
2p
5p
8p
11p
2a
5a
8a
11a
mostly sunny
mostly sunny
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
rain
rain
rain
rain
rain
rain
rain
rain
rain
rain
rain
rain
rain
rain
rain
mostly cloudy day
partly cloudy day
TEMPERATURE °F
74°
60°
66°
63°
69°
51°
CHANCE OF RAIN
73% · 1.41 in Thursday night 50%
WIND, MPH
7
7
3
5
6
7
8
9
11
11
10
8
7
7
6
7
8
6
3
4
5
6
6
7
HOW IT FEELS · DEW POINT
Comfortable: dew points 52 to 65° ↑ The front passes Drier: 50° by Friday

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
76° 57°
0% rain — SW 7 A
WED Sept. 30 Showers likely Showers likely
69° 59°
60% rain 0.2–0.4″ SSW 10 C
THU Oct. 1 Showers likely Showers likely
71° 51°
70% rain 0.3–1.9″ SW 7 C
FRI Oct. 2 Mostly sunny Mostly sunny
67° 37°
20% rain — N 6 B
SAT Oct. 3 Partly cloudy Partly cloudy
65° 38°
0% rain — E 2 B
SUN Oct. 4 Mostly sunny Mostly sunny
66° 37°
10% rain — NW 7 B
MON Oct. 5 Mostly sunny Mostly sunny
61° 33°
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 Sumner about 5,000 feet above the ground was over British Columbia three days ago, and over the Great Lakes a day ago, about 2,080 miles back along its path. It came down from about 15,500 feet up, warming and drying as it sank. Near the ground the air came from the Great Lakes; at 10,000 feet, from the Pacific Northwest. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

MILE7
ON THE NETWORK

Around Sumner on the Forecast Network

Neighboring plates

Mount Pleasant MI · 18 MI 18 miles north Midland MI · 34 MI 34 miles northeast Grand Rapids MI · 51 MI 51 miles southwest Detroit MI · 108 MI 108 miles southeast Toledo OH · 131 MI 131 miles southeast Milwaukee WI · 161 MI 161 miles west
FORECASTCITY
Atlas plate of Sumner, Michigan. Explore the plate
MICHIGAN · GRATIOT

Sumner

1,854 people, 770 ft above sea level in Gratiot County.

770 ftElevation
1,854People
36 sq miLand
Sunny 77°
SunnyDew point 54°
1

Today in Sumner

NEXT 15 HOURS
Now clear day 74° 0%
5p mostly sunny 76° 0%
8p partly cloudy night 66° 0%
11p partly cloudy night 61° 0%
2a mostly cloudy night 61° 4%
5a mostly cloudy night 61° 3%
Mostly cloudy
NEXT RAINTomorrow about 11 AM · 63%
→
Tue0%
Mostly sunny Mostly sunny
57
76
A
Wed60%
Showers likely Showers likely
59
69
C
Thu70%
Showers likely Showers likely
51
71
C
Fri20%
Mostly sunny Mostly sunny
37
67
B
Sat0%
Partly cloudy Partly cloudy
38
65
B
Sun10%
Mostly sunny Mostly sunny
37
66
B
Mon0%
Mostly sunny Mostly sunny
33
61
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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