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As of 16:05 EDT

Weather in Sumner, MI

84°Current weather

Sumner, Saturday, 8 August, 16:05

Clear. Feels like 85°. High 84°, low 68°.

Pressure29.91 inHg
Wind12.8 mph W
Humidity50%
Visibility6.2 mi
Dew point62°
Sun, 0982° / 65°0Light rain
82 °Light rain

Sumner, Sunday, 9 August

Light rain. High 82°, low 65°.

Pressure29.97 inHg
Wind12.9 mph S
Humidity38%
Visibility6.2 mi
Dew point53°
Mon, 1090° / 70°0.61Heavy rain
90 °Heavy rain

Sumner, Monday, 10 August

Heavy rain. High 90°, low 70°.

Pressure29.91 inHg
Wind8 mph SW
Humidity75%
Visibility6.2 mi
Dew point69°
Tue, 1177° / 64°0.33Rain
77 °Rain

Sumner, Tuesday, 11 August

Rain. High 77°, low 64°.

Pressure29.91 inHg
Wind7.1 mph S
Humidity76%
Visibility6.2 mi
Dew point67°
Wed, 1286° / 61°0Clear
86 °Clear

Sumner, Wednesday, 12 August

Clear. High 86°, low 61°.

Pressure29.83 inHg
Wind5.9 mph W
Humidity56%
Visibility6.2 mi
Dew point61°
Thu, 1376° / 57°0.28Rain
76 °Rain

Sumner, Thursday, 13 August

Rain. High 76°, low 57°.

Pressure29.91 inHg
Wind11.9 mph N
Humidity39%
Visibility—
Dew point45°
Fri, 1474° / 50°0Clear
74 °Clear

Sumner, Friday, 14 August

Clear. High 74°, low 50°.

Pressure30.12 inHg
Wind13.5 mph N
Humidity41%
Visibility—
Dew point44°
Sat, 1576° / 52°0Overcast
76 °Overcast

Sumner, Saturday, 15 August

Overcast. High 76°, low 52°.

Pressure30.30 inHg
Wind10.2 mph SW
Humidity45%
Visibility—
Dew point48°
Sun, 1678° / 55°0Partly cloudy
78 °Partly cloudy

Sumner, Sunday, 16 August

Partly cloudy. High 78°, low 55°.

Pressure30.21 inHg
Wind12.6 mph SW
Humidity43%
Visibility—
Dew point52°
Mon, 1779° / 60°0.02Light rain
79 °Light rain

Sumner, Monday, 17 August

Light rain. High 79°, low 60°.

Pressure30.00 inHg
Wind10.5 mph SW
Humidity56%
Visibility—
Dew point60°
Tue, 1885° / 61°0.02Light rain
85 °Light rain

Sumner, Tuesday, 18 August

Light rain. High 85°, low 61°.

Pressure30.00 inHg
Wind10.8 mph N
Humidity32%
Visibility—
Dew point47°
Wed, 1970° / 59°0.34Rain
70 °Rain

Sumner, Wednesday, 19 August

Rain. High 70°, low 59°.

Pressure30.00 inHg
Wind8.7 mph SE
Humidity60%
Visibility—
Dew point54°
Thu, 2071° / 62°0.07Light rain
71 °Light rain

Sumner, Thursday, 20 August

Light rain. High 71°, low 62°.

Pressure29.91 inHg
Wind8.9 mph NE
Humidity84%
Visibility—
Dew point63°
Fri, 2181° / 57°0Overcast
81 °Overcast

Sumner, Friday, 21 August

Overcast. High 81°, low 57°.

Pressure29.91 inHg
Wind10.8 mph NW
Humidity54%
Visibility—
Dew point56°
Sat, 2266° / 50°0.55Rain
66 °Rain

Sumner, Saturday, 22 August

Rain. High 66°, low 50°.

Pressure29.94 inHg
Wind13.2 mph N
Humidity75%
Visibility—
Dew point53°
Sun, 2369° / 43°0Partly cloudy
69 °Partly cloudy

Sumner, Sunday, 23 August

Partly cloudy. High 69°, low 43°.

Pressure30.24 inHg
Wind7.5 mph N
Humidity46%
Visibility—
Dew point42°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Sumner, MI are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Sumner, MI since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.