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As of 18:17 EDT

Weather in Marcellus, MI

78°Current weather

Marcellus, Saturday, 8 August, 18:17

Clear. Feels like 79°. High 81°, low 69°.

Pressure29.94 inHg
Wind11.7 mph W
Humidity60%
Visibility6.2 mi
Dew point63°
Sun, 0981° / 63°0.61Heavy rain
81 °Heavy rain

Marcellus, Sunday, 9 August

Heavy rain. High 81°, low 63°.

Pressure30.00 inHg
Wind11.7 mph S
Humidity50%
Visibility6.2 mi
Dew point62°
Mon, 1082° / 69°0.65Rain
82 °Rain

Marcellus, Monday, 10 August

Rain. High 82°, low 69°.

Pressure29.91 inHg
Wind6.5 mph S
Humidity95%
Visibility6.2 mi
Dew point70°
Tue, 1181° / 69°0.72Heavy rain
81 °Heavy rain

Marcellus, Tuesday, 11 August

Heavy rain. High 81°, low 69°.

Pressure29.80 inHg
Wind13.1 mph SW
Humidity94%
Visibility2.1 mi
Dew point71°
Wed, 1282° / 65°0.04Light rain
82 °Light rain

Marcellus, Wednesday, 12 August

Light rain. High 82°, low 65°.

Pressure29.83 inHg
Wind3.6 mph N
Humidity61%
Visibility6.2 mi
Dew point64°
Thu, 1368° / 57°0.05Light rain
68 °Light rain

Marcellus, Thursday, 13 August

Light rain. High 68°, low 57°.

Pressure29.97 inHg
Wind13.7 mph NE
Humidity82%
Visibility—
Dew point57°
Fri, 1472° / 52°0Clear
72 °Clear

Marcellus, Friday, 14 August

Clear. High 72°, low 52°.

Pressure30.15 inHg
Wind12.4 mph N
Humidity43%
Visibility—
Dew point45°
Sat, 1576° / 54°0Overcast
76 °Overcast

Marcellus, Saturday, 15 August

Overcast. High 76°, low 54°.

Pressure30.30 inHg
Wind6 mph NW
Humidity42%
Visibility—
Dew point48°
Sun, 1677° / 56°0Mostly clear
77 °Mostly clear

Marcellus, Sunday, 16 August

Mostly clear. High 77°, low 56°.

Pressure30.24 inHg
Wind10.5 mph S
Humidity48%
Visibility—
Dew point53°
Mon, 1776° / 59°0.01Light rain
76 °Light rain

Marcellus, Monday, 17 August

Light rain. High 76°, low 59°.

Pressure30.03 inHg
Wind8.5 mph SW
Humidity70%
Visibility—
Dew point61°
Tue, 1884° / 65°0Light rain
84 °Light rain

Marcellus, Tuesday, 18 August

Light rain. High 84°, low 65°.

Pressure30.00 inHg
Wind10.5 mph N
Humidity48%
Visibility—
Dew point59°
Wed, 1981° / 62°1.4Heavy rain
81 °Heavy rain

Marcellus, Wednesday, 19 August

Heavy rain. High 81°, low 62°.

Pressure29.94 inHg
Wind13.4 mph SE
Humidity51%
Visibility—
Dew point59°
Thu, 2079° / 66°0.2Rain
79 °Rain

Marcellus, Thursday, 20 August

Rain. High 79°, low 66°.

Pressure29.85 inHg
Wind9.4 mph N
Humidity66%
Visibility—
Dew point65°
Fri, 2179° / 58°0Overcast
79 °Overcast

Marcellus, Friday, 21 August

Overcast. High 79°, low 58°.

Pressure29.94 inHg
Wind12.6 mph NW
Humidity55%
Visibility—
Dew point59°
Sat, 2268° / 56°0.1Light rain
68 °Light rain

Marcellus, Saturday, 22 August

Light rain. High 68°, low 56°.

Pressure29.88 inHg
Wind14 mph NW
Humidity96%
Visibility—
Dew point65°
Sun, 2368° / 43°0Clear
68 °Clear

Marcellus, Sunday, 23 August

Clear. High 68°, low 43°.

Pressure30.24 inHg
Wind10.9 mph NE
Humidity44%
Visibility—
Dew point40°

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 Marcellus, 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 Marcellus, 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.