As of 22:11 EDT

Weather in Grafton, NY

66°Current weather

Grafton, Saturday, 8 August, 22:11

Clear. Feels like 66°. High 82°, low 66°.

Pressure29.91 inHg
Wind2.9 mph S
Humidity86%
Visibility6.2 mi
Dew point62°

Monthly outlook for Grafton, NY: average high 72.6°, average low 54.5°. That is 3.4° below the climate normal for August. Precipitation is expected on 8 days (about 2.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 8 August (82°), the coolest 22 August (44.1°).

72.6°/54.5°
Average high / low
−3.4°
Below normal
8 / 5
Wet days / normal
2.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August74.4°79.6°-2.9°
18 August – 27 August69.6°77.5°-4.4°
28 August – 6 Septemberat normal76.2°

August records over 66 years

98.6°4 August 2022All-time high
44.1°30 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Mechanicville (15 mi).

Sun, 0980° / 63°0.01Light rain
80 °Light rain

Grafton, Sunday, 9 August

Light rain. High 80°, low 63°.

Pressure29.97 inHg
Wind11.4 mph W
Humidity56%
Visibility6.2 mi
Dew point62°
Mon, 1077° / 60°0.1Light rain
77 °Light rain

Grafton, Monday, 10 August

Light rain. High 77°, low 60°.

Pressure29.97 inHg
Wind6.6 mph SW
Humidity60%
Visibility6.2 mi
Dew point61°
Tue, 1179° / 63°0.04Light rain
79 °Light rain

Grafton, Tuesday, 11 August

Light rain. High 79°, low 63°.

Pressure29.85 inHg
Wind9.9 mph NW
Humidity47%
Visibility6.2 mi
Dew point56°
Wed, 1272° / 59°0.41Rain
72 °Rain

Grafton, Wednesday, 12 August

Rain. High 72°, low 59°.

Pressure29.74 inHg
Wind3.2 mph N
Humidity76%
Visibility6.2 mi
Dew point61°
Thu, 1371° / 52°0.13Light rain
71 °Light rain

Grafton, Thursday, 13 August

Light rain. High 71°, low 52°.

Pressure29.77 inHg
Wind13.2 mph W
Humidity78%
Visibility
Dew point58°
Fri, 1468° / 48°0.01Light rain
68 °Light rain

Grafton, Friday, 14 August

Light rain. High 68°, low 48°.

Pressure30.00 inHg
Wind13.1 mph W
Humidity50%
Visibility
Dew point42°
Sat, 1570° / 48°0Clear
70 °Clear

Grafton, Saturday, 15 August

Clear. High 70°, low 48°.

Pressure30.09 inHg
Wind10.3 mph NW
Humidity61%
Visibility
Dew point48°
Sun, 1671° / 47°0Clear
71 °Clear

Grafton, Sunday, 16 August

Clear. High 71°, low 47°.

Pressure30.21 inHg
Wind4.9 mph N
Humidity53%
Visibility
Dew point45°
Mon, 1775° / 52°0.02Light rain
75 °Light rain

Grafton, Monday, 17 August

Light rain. High 75°, low 52°.

Pressure30.15 inHg
Wind10.8 mph S
Humidity52%
Visibility
Dew point49°
Tue, 1869° / 59°0.2Light rain
69 °Light rain

Grafton, Tuesday, 18 August

Light rain. High 69°, low 59°.

Pressure30.12 inHg
Wind9.7 mph S
Humidity96%
Visibility
Dew point62°
Wed, 1972° / 57°0.02Light rain
72 °Light rain

Grafton, Wednesday, 19 August

Light rain. High 72°, low 57°.

Pressure29.94 inHg
Wind13 mph S
Humidity73%
Visibility
Dew point59°
Thu, 2068° / 54°0.83Rain
68 °Rain

Grafton, Thursday, 20 August

Rain. High 68°, low 54°.

Pressure29.62 inHg
Wind12 mph W
Humidity77%
Visibility
Dew point59°
Fri, 2167° / 50°0Overcast
67 °Overcast

Grafton, Friday, 21 August

Overcast. High 67°, low 50°.

Pressure29.77 inHg
Wind13.6 mph NW
Humidity79%
Visibility
Dew point50°
Sat, 2269° / 44°0Clear
69 °Clear

Grafton, Saturday, 22 August

Clear. High 69°, low 44°.

Pressure30.06 inHg
Wind9.1 mph NW
Humidity46%
Visibility
Dew point38°
Sun, 2372° / 49°0.06Light rain
72 °Light rain

Grafton, Sunday, 23 August

Light rain. High 72°, low 49°.

Pressure30.03 inHg
Wind12.8 mph S
Humidity61%
Visibility
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2476° / 60°0.12Climate normal
76 °Climate normal

Grafton, Monday, 24 August

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.12 in
Chance of precipitation32%
Record high90° (2020)
Record low47° (1971)
Tue, 2578° / 60°0.09Climate normal
78 °Climate normal

Grafton, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high78°
Average low60°
Average precipitation0.09 in
Chance of precipitation33%
Record high95° (2007)
Record low48° (1971)
Wed, 2678° / 61°0.06Climate normal
78 °Climate normal

Grafton, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation18%
Record high89° (2021)
Record low52° (1977)
Thu, 2778° / 62°0.15Climate normal
78 °Climate normal

Grafton, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.15 in
Chance of precipitation42%
Record high90° (1993)
Record low51° (1969)
Fri, 2878° / 61°0.21Climate normal
78 °Climate normal

Grafton, Friday, 28 August

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.21 in
Chance of precipitation42%
Record high93° (2018)
Record low51° (1968)
Sat, 2977° / 61°0.19Climate normal
77 °Climate normal

Grafton, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.19 in
Chance of precipitation42%
Record high92° (2018)
Record low45° (1982)
Sun, 3077° / 60°0.1Climate normal
77 °Climate normal

Grafton, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high77°
Average low60°
Average precipitation0.1 in
Chance of precipitation32%
Record high90° (1973)
Record low44° (1965)
Mon, 3176° / 60°0.1Climate normal
76 °Climate normal

Grafton, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.1 in
Chance of precipitation38%
Record high91° (1973)
Record low44° (1965)
Tue, 0176° / 59°0.07Climate normal
76 °Climate normal

Grafton, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°
Average low59°
Average precipitation0.07 in
Chance of precipitation27%
Record high90° (2010)
Record low47° (1967)
Wed, 0276° / 59°0.11Climate normal
76 °Climate normal

Grafton, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high76°
Average low59°
Average precipitation0.11 in
Chance of precipitation38%
Record high90° (2010)
Record low46° (2017)
Thu, 0376° / 59°0.14Climate normal
76 °Climate normal

Grafton, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high76°
Average low59°
Average precipitation0.14 in
Chance of precipitation37%
Record high90° (1973)
Record low47° (1976)
Fri, 0476° / 60°0.11Climate normal
76 °Climate normal

Grafton, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation30%
Record high91° (1999)
Record low48° (1987)
Sat, 0575° / 59°0.06Climate normal
75 °Climate normal

Grafton, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high75°
Average low59°
Average precipitation0.06 in
Chance of precipitation18%
Record high91° (1973)
Record low46° (1963)
Sun, 0675° / 59°0.16Climate normal
75 °Climate normal

Grafton, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°
Average low59°
Average precipitation0.16 in
Chance of precipitation33%
Record high88° (2023)
Record low46° (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 Grafton, 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 Grafton, 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.