As of 22:28 EDT

Weather in Marcellus, NY

73°Current weather

Marcellus, Saturday, 8 August, 22:28

Clear. Feels like 72°. High 83°, low 68°.

Pressure29.91 inHg
Wind5.8 mph SW
Humidity51%
Visibility6.2 mi
Dew point57°

Monthly outlook for Marcellus, NY: average high 75.5°, average low 59°. That is 0.2° below the climate normal for August. Precipitation is expected on 9 days (about 1.8 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 10 August (86.8°), the coolest 22 August (49°).

75.5°/59°
Average high / low
−0.2°
Below normal
9 / 7
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August77°76.7°+0.1°
18 August – 27 August73.2°74.8°-0.9°
28 August – 6 Septemberat normal73.7°

August records over 66 years

93.6°9 August 2001All-time high
44.4°29 August 1982All-time low
Sun, 0986° / 67°0Clear
86 °Clear

Marcellus, Sunday, 9 August

Clear. High 86°, low 67°.

Pressure30.03 inHg
Wind9.6 mph W
Humidity60%
Visibility6.2 mi
Dew point60°
Mon, 1087° / 65°0.13Light rain
87 °Light rain

Marcellus, Monday, 10 August

Light rain. High 87°, low 65°.

Pressure29.94 inHg
Wind7.8 mph S
Humidity72%
Visibility6.2 mi
Dew point65°
Tue, 1180° / 63°0.16Rain
80 °Rain

Marcellus, Tuesday, 11 August

Rain. High 80°, low 63°.

Pressure29.88 inHg
Wind8.2 mph W
Humidity64%
Visibility6.2 mi
Dew point62°
Wed, 1278° / 64°0.43Rain
78 °Rain

Marcellus, Wednesday, 12 August

Rain. High 78°, low 64°.

Pressure29.74 inHg
Wind1 mph N
Humidity68%
Visibility6.2 mi
Dew point64°
Thu, 1368° / 59°0.03Light rain
68 °Light rain

Marcellus, Thursday, 13 August

Light rain. High 68°, low 59°.

Pressure29.83 inHg
Wind15.4 mph W
Humidity57%
Visibility
Dew point52°
Fri, 1470° / 54°0.04Light rain
70 °Light rain

Marcellus, Friday, 14 August

Light rain. High 70°, low 54°.

Pressure30.03 inHg
Wind13.6 mph NW
Humidity50%
Visibility
Dew point49°
Sat, 1570° / 51°0Mostly clear
70 °Mostly clear

Marcellus, Saturday, 15 August

Mostly clear. High 70°, low 51°.

Pressure30.18 inHg
Wind13.6 mph NW
Humidity52%
Visibility
Dew point49°
Sun, 1673° / 53°0Overcast
73 °Overcast

Marcellus, Sunday, 16 August

Overcast. High 73°, low 53°.

Pressure30.18 inHg
Wind5.9 mph SE
Humidity53%
Visibility
Dew point53°
Mon, 1775° / 58°0.05Light rain
75 °Light rain

Marcellus, Monday, 17 August

Light rain. High 75°, low 58°.

Pressure30.06 inHg
Wind11 mph S
Humidity65%
Visibility
Dew point59°
Tue, 1878° / 61°0Overcast
78 °Overcast

Marcellus, Tuesday, 18 August

Overcast. High 78°, low 61°.

Pressure30.00 inHg
Wind11.7 mph S
Humidity57%
Visibility
Dew point60°
Wed, 1979° / 64°0.3Rain
79 °Rain

Marcellus, Wednesday, 19 August

Rain. High 79°, low 64°.

Pressure29.80 inHg
Wind16.9 mph SW
Humidity66%
Visibility
Dew point65°
Thu, 2067° / 59°0.32Light rain
67 °Light rain

Marcellus, Thursday, 20 August

Light rain. High 67°, low 59°.

Pressure29.62 inHg
Wind17 mph NW
Humidity88%
Visibility
Dew point62°
Fri, 2168° / 52°0Partly cloudy
68 °Partly cloudy

Marcellus, Friday, 21 August

Partly cloudy. High 68°, low 52°.

Pressure29.91 inHg
Wind14.7 mph NW
Humidity55%
Visibility
Dew point49°
Sat, 2269° / 49°0Clear
69 °Clear

Marcellus, Saturday, 22 August

Clear. High 69°, low 49°.

Pressure30.09 inHg
Wind6.4 mph W
Humidity46%
Visibility
Dew point46°
Sun, 2378° / 58°0.18Rain
78 °Rain

Marcellus, Sunday, 23 August

Rain. High 78°, low 58°.

Pressure29.88 inHg
Wind14.9 mph S
Humidity71%
Visibility
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2474° / 60°0.12Climate normal
74 °Climate normal

Marcellus, Monday, 24 August

Climate normal for this date — 60-year average.

Average high74°
Average low60°
Average precipitation0.12 in
Chance of precipitation40%
Record high89° (2020)
Record low46° (1971)
Tue, 2575° / 60°0.12Climate normal
75 °Climate normal

Marcellus, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.12 in
Chance of precipitation37%
Record high89° (2007)
Record low47° (1971)
Wed, 2676° / 60°0.08Climate normal
76 °Climate normal

Marcellus, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.08 in
Chance of precipitation28%
Record high85° (2021)
Record low49° (1977)
Thu, 2775° / 61°0.14Climate normal
75 °Climate normal

Marcellus, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.14 in
Chance of precipitation50%
Record high87° (1993)
Record low48° (1969)
Fri, 2875° / 61°0.22Climate normal
75 °Climate normal

Marcellus, Friday, 28 August

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.22 in
Chance of precipitation58%
Record high90° (2018)
Record low48° (1986)
Sat, 2974° / 61°0.15Climate normal
74 °Climate normal

Marcellus, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.15 in
Chance of precipitation48%
Record high89° (2022)
Record low44° (1982)
Sun, 3074° / 59°0.14Climate normal
74 °Climate normal

Marcellus, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high74°
Average low59°
Average precipitation0.14 in
Chance of precipitation38%
Record high89° (1991)
Record low45° (1965)
Mon, 3174° / 59°0.13Climate normal
74 °Climate normal

Marcellus, Monday, 31 August

Climate normal for this date — 60-year average.

Average high74°
Average low59°
Average precipitation0.13 in
Chance of precipitation38%
Record high90° (1993)
Record low47° (1965)
Tue, 0173° / 58°0.06Climate normal
73 °Climate normal

Marcellus, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high73°
Average low58°
Average precipitation0.06 in
Chance of precipitation30%
Record high88° (2010)
Record low47° (1971)
Wed, 0273° / 59°0.13Climate normal
73 °Climate normal

Marcellus, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high73°
Average low59°
Average precipitation0.13 in
Chance of precipitation35%
Record high87° (2010)
Record low47° (1967)
Thu, 0373° / 59°0.11Climate normal
73 °Climate normal

Marcellus, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high73°
Average low59°
Average precipitation0.11 in
Chance of precipitation40%
Record high89° (2010)
Record low45° (1976)
Fri, 0473° / 59°0.1Climate normal
73 °Climate normal

Marcellus, Friday, 4 September

Climate normal for this date — 60-year average.

Average high73°
Average low59°
Average precipitation0.1 in
Chance of precipitation30%
Record high89° (1999)
Record low45° (1987)
Sat, 0573° / 58°0.11Climate normal
73 °Climate normal

Marcellus, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high73°
Average low58°
Average precipitation0.11 in
Chance of precipitation30%
Record high89° (1973)
Record low45° (2000)
Sun, 0673° / 59°0.16Climate normal
73 °Climate normal

Marcellus, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high73°
Average low59°
Average precipitation0.16 in
Chance of precipitation35%
Record high88° (2023)
Record low47° (2000)

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, NY 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, NY 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.