As of 16:08 EDT

Weather in Chappaqua, NY

86°Current weather

Chappaqua, Saturday, 8 August, 16:08

Overcast. Feels like 95°. High 86°, low 70°.

Pressure29.94 inHg
Wind11.3 mph W
Humidity67%
Visibility6.2 mi
Dew point73°

Monthly outlook for Chappaqua, NY: average high 80.7°, average low 63.7°. That is 0° below the climate normal for August. Precipitation is expected on 7 days (about 3.1 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 10 August (91.3°), the coolest 15 August (54°).

80.7°/63.7°
Average high / low
−0°
Below normal
7 / 6
Wet days / normal
3.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August83°81.6°+0.8°
18 August – 27 August77°79.8°-1.5°
28 August – 6 Septemberat normal78.5°

August records over 66 years

99.7°9 August 2001All-time high
50.7°29 August 1982All-time low

Climate normals and records are computed from the nearest reference point — Byram (12 mi).

Sun, 0989° / 72°0Clear
89 °Clear

Chappaqua, Sunday, 9 August

Clear. High 89°, low 72°.

Pressure29.94 inHg
Wind7.6 mph NW
Humidity45%
Visibility6.2 mi
Dew point64°
Mon, 1091° / 70°0Overcast
91 °Overcast

Chappaqua, Monday, 10 August

Overcast. High 91°, low 70°.

Pressure29.97 inHg
Wind6 mph SW
Humidity47%
Visibility6.2 mi
Dew point63°
Tue, 1190° / 71°0.04Light rain
90 °Light rain

Chappaqua, Tuesday, 11 August

Light rain. High 90°, low 71°.

Pressure29.85 inHg
Wind8.5 mph NW
Humidity37%
Visibility6.2 mi
Dew point57°
Wed, 1279° / 68°0.35Rain
79 °Rain

Chappaqua, Wednesday, 12 August

Rain. High 79°, low 68°.

Pressure29.77 inHg
Wind4.3 mph N
Humidity76%
Visibility6.2 mi
Dew point66°
Thu, 1386° / 63°0.07Light rain
86 °Light rain

Chappaqua, Thursday, 13 August

Light rain. High 86°, low 63°.

Pressure29.71 inHg
Wind13 mph NW
Humidity41%
Visibility
Dew point57°
Fri, 1476° / 59°0Partly cloudy
76 °Partly cloudy

Chappaqua, Friday, 14 August

Partly cloudy. High 76°, low 59°.

Pressure29.94 inHg
Wind9.8 mph NW
Humidity42%
Visibility
Dew point45°
Sat, 1574° / 54°0Clear
74 °Clear

Chappaqua, Saturday, 15 August

Clear. High 74°, low 54°.

Pressure30.15 inHg
Wind9.1 mph N
Humidity39%
Visibility
Dew point42°
Sun, 1677° / 56°0Overcast
77 °Overcast

Chappaqua, Sunday, 16 August

Overcast. High 77°, low 56°.

Pressure30.30 inHg
Wind6.2 mph NW
Humidity42%
Visibility
Dew point46°
Mon, 1782° / 60°0Overcast
82 °Overcast

Chappaqua, Monday, 17 August

Overcast. High 82°, low 60°.

Pressure30.21 inHg
Wind9.9 mph S
Humidity42%
Visibility
Dew point49°
Tue, 1878° / 67°0.22Light rain
78 °Light rain

Chappaqua, Tuesday, 18 August

Light rain. High 78°, low 67°.

Pressure30.00 inHg
Wind7.4 mph W
Humidity89%
Visibility
Dew point67°
Wed, 1982° / 66°0Mostly clear
82 °Mostly clear

Chappaqua, Wednesday, 19 August

Mostly clear. High 82°, low 66°.

Pressure29.88 inHg
Wind7.8 mph N
Humidity64%
Visibility
Dew point62°
Thu, 2081° / 61°0.01Light rain
81 °Light rain

Chappaqua, Thursday, 20 August

Light rain. High 81°, low 61°.

Pressure30.00 inHg
Wind7.8 mph N
Humidity54%
Visibility
Dew point53°
Fri, 2173° / 65°1.56Heavy rain
73 °Heavy rain

Chappaqua, Friday, 21 August

Heavy rain. High 73°, low 65°.

Pressure29.97 inHg
Wind8.1 mph SE
Humidity92%
Visibility
Dew point64°
Sat, 2279° / 64°0.79Heavy rain
79 °Heavy rain

Chappaqua, Saturday, 22 August

Heavy rain. High 79°, low 64°.

Pressure29.80 inHg
Wind6.9 mph NW
Humidity96%
Visibility
Dew point67°
Sun, 2370° / 55°0Clear
70 °Clear

Chappaqua, Sunday, 23 August

Clear. High 70°, low 55°.

Pressure29.94 inHg
Wind16.4 mph NW
Humidity46%
Visibility
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2479° / 65°0.07Climate normal
79 °Climate normal

Chappaqua, Monday, 24 August

Climate normal for this date — 60-year average.

Average high79°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high92° (1998)
Record low54° (1971)
Tue, 2580° / 65°0.08Climate normal
80 °Climate normal

Chappaqua, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°
Average low65°
Average precipitation0.08 in
Chance of precipitation23%
Record high93° (1968)
Record low56° (1971)
Wed, 2680° / 66°0.06Climate normal
80 °Climate normal

Chappaqua, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high80°
Average low66°
Average precipitation0.06 in
Chance of precipitation25%
Record high90° (1993)
Record low56° (2019)
Thu, 2781° / 67°0.16Climate normal
81 °Climate normal

Chappaqua, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low67°
Average precipitation0.16 in
Chance of precipitation35%
Record high93° (1980)
Record low56° (1969)
Fri, 2880° / 67°0.21Climate normal
80 °Climate normal

Chappaqua, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°
Average low67°
Average precipitation0.21 in
Chance of precipitation38%
Record high93° (2024)
Record low57° (1986)
Sat, 2979° / 66°0.14Climate normal
79 °Climate normal

Chappaqua, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high79°
Average low66°
Average precipitation0.14 in
Chance of precipitation30%
Record high92° (2018)
Record low51° (1982)
Sun, 3080° / 66°0.08Climate normal
80 °Climate normal

Chappaqua, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°
Average low66°
Average precipitation0.08 in
Chance of precipitation30%
Record high92° (1973)
Record low53° (1965)
Mon, 3179° / 65°0.05Climate normal
79 °Climate normal

Chappaqua, Monday, 31 August

Climate normal for this date — 60-year average.

Average high79°
Average low65°
Average precipitation0.05 in
Chance of precipitation18%
Record high94° (2010)
Record low54° (1976)
Tue, 0178° / 65°0.09Climate normal
78 °Climate normal

Chappaqua, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°
Average low65°
Average precipitation0.09 in
Chance of precipitation27%
Record high94° (2010)
Record low53° (2017)
Wed, 0278° / 64°0.18Climate normal
78 °Climate normal

Chappaqua, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.18 in
Chance of precipitation32%
Record high92° (2010)
Record low51° (2017)
Thu, 0378° / 64°0.11Climate normal
78 °Climate normal

Chappaqua, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.11 in
Chance of precipitation32%
Record high91° (2015)
Record low53° (1967)
Fri, 0478° / 65°0.12Climate normal
78 °Climate normal

Chappaqua, Friday, 4 September

Climate normal for this date — 60-year average.

Average high78°
Average low65°
Average precipitation0.12 in
Chance of precipitation27%
Record high90° (2023)
Record low54° (1997)
Sat, 0578° / 64°0.06Climate normal
78 °Climate normal

Chappaqua, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.06 in
Chance of precipitation25%
Record high92° (2023)
Record low55° (2000)
Sun, 0677° / 64°0.2Climate normal
77 °Climate normal

Chappaqua, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high77°
Average low64°
Average precipitation0.2 in
Chance of precipitation35%
Record high93° (2023)
Record low53° (1984)

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 Chappaqua, 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 Chappaqua, 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.