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As of 10:00 EDT

Weather in Sullivan, MI

56°Current weather

Sullivan, Friday, 9 October, 10:00

Overcast. Feels like 55°. High 68°, low 46°.

Pressure30.18 inHg
Wind2.3 mph SE
Humidity91%
Visibility6.2 mi
Dew point53°
Sat, 1072° / 50°0.01Light rain
72 °Light rain

Sullivan, Saturday, 10 October

Light rain. High 72°, low 50°.

Pressure30.15 inHg
Wind8.3 mph S
Humidity59%
Visibility6.2 mi
Dew point54°
Sun, 1173° / 52°0Partly cloudy
73 °Partly cloudy

Sullivan, Sunday, 11 October

Partly cloudy. High 73°, low 52°.

Pressure29.94 inHg
Wind4 mph SE
Humidity77%
Visibility6.2 mi
Dew point57°
Mon, 1272° / 58°0.06Light rain
72 °Light rain

Sullivan, Monday, 12 October

Light rain. High 72°, low 58°.

Pressure29.80 inHg
Wind10.7 mph SW
Humidity72%
Visibility6.2 mi
Dew point61°
Tue, 1369° / 59°0.15Light rain
69 °Light rain

Sullivan, Tuesday, 13 October

Light rain. High 69°, low 59°.

Pressure29.80 inHg
Wind7.6 mph SW
Humidity77%
Visibility—
Dew point61°
Wed, 1465° / 53°0Overcast
65 °Overcast

Sullivan, Wednesday, 14 October

Overcast. High 65°, low 53°.

Pressure30.09 inHg
Wind7.3 mph E
Humidity59%
Visibility—
Dew point47°
Thu, 1562° / 44°0.1Light rain
62 °Light rain

Sullivan, Thursday, 15 October

Light rain. High 62°, low 44°.

Pressure30.09 inHg
Wind12.4 mph SE
Humidity47%
Visibility—
Dew point38°
Fri, 1657° / 45°0.22Rain
57 °Rain

Sullivan, Friday, 16 October

Rain. High 57°, low 45°.

Pressure29.65 inHg
Wind24.9 mph W
Humidity55%
Visibility—
Dew point36°
Sat, 1745° / 35°0.12Snow
45 °Snow

Sullivan, Saturday, 17 October

Snow. High 45°, low 35°.

Pressure30.15 inHg
Wind23.5 mph W
Humidity66%
Visibility—
Dew point33°
Sun, 1848° / 32°0Overcast
48 °Overcast

Sullivan, Sunday, 18 October

Overcast. High 48°, low 32°.

Pressure30.33 inHg
Wind11 mph SW
Humidity53%
Visibility—
Dew point29°
Mon, 1955° / 38°0Overcast
55 °Overcast

Sullivan, Monday, 19 October

Overcast. High 55°, low 38°.

Pressure30.21 inHg
Wind14.9 mph SW
Humidity50%
Visibility—
Dew point35°
Tue, 2061° / 43°0Clear
61 °Clear

Sullivan, Tuesday, 20 October

Clear. High 61°, low 43°.

Pressure30.36 inHg
Wind6.6 mph SE
Humidity43%
Visibility—
Dew point36°
Wed, 2161° / 47°0Overcast
61 °Overcast

Sullivan, Wednesday, 21 October

Overcast. High 61°, low 47°.

Pressure30.24 inHg
Wind14.2 mph SW
Humidity50%
Visibility—
Dew point40°
Thu, 2256° / 52°0.45Light rain
56 °Light rain

Sullivan, Thursday, 22 October

Light rain. High 56°, low 52°.

Pressure30.00 inHg
Wind18 mph S
Humidity85%
Visibility—
Dew point48°
Fri, 2356° / 42°0.16Light rain
56 °Light rain

Sullivan, Friday, 23 October

Light rain. High 56°, low 42°.

Pressure29.83 inHg
Wind19.5 mph W
Humidity84%
Visibility—
Dew point41°
Sat, 2444° / 39°0.05Light rain
44 °Light rain

Sullivan, Saturday, 24 October

Light rain. High 44°, low 39°.

Pressure30.06 inHg
Wind17.2 mph N
Humidity62%
Visibility—
Dew point31°

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 Sullivan, 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 Sullivan, 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.