As of 17:20 EDT

Weather in Sullivan, NY

83°Current weather

Sullivan, Saturday, 8 August, 17:20

Partly cloudy. Feels like 89°. High 83°, low 70°.

Pressure29.88 inHg
Wind8.2 mph W
Humidity74%
Visibility6.2 mi
Dew point74°

Monthly outlook for Sullivan, NY: average high 75.4°, average low 59.2°. That is 1.2° below the climate normal for August. Precipitation is expected on 8 days (about 1.2 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 9 August (88.8°), the coolest 23 August (49.9°).

75.4°/59.2°
Average high / low
−1.2°
Below normal
8 / 7
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August77.6°78.4°-0.5°
18 August – 27 August71.8°76.5°-2.6°
28 August – 6 Septemberat normal75.5°

August records over 66 years

95.5°9 August 2001All-time high
46.6°29 August 1982All-time low

Climate normals and records are computed from the nearest reference point — Syracuse (14 mi).

Sun, 0989° / 68°0Clear
89 °Clear

Sullivan, Sunday, 9 August

Clear. High 89°, low 68°.

Pressure30.00 inHg
Wind11.5 mph W
Humidity53%
Visibility6.2 mi
Dew point59°
Mon, 1081° / 64°0.15Light rain
81 °Light rain

Sullivan, Monday, 10 August

Light rain. High 81°, low 64°.

Pressure29.94 inHg
Wind10.2 mph SW
Humidity64%
Visibility6.2 mi
Dew point66°
Tue, 1183° / 65°0.05Light rain
83 °Light rain

Sullivan, Tuesday, 11 August

Light rain. High 83°, low 65°.

Pressure29.91 inHg
Wind8 mph W
Humidity55%
Visibility6.2 mi
Dew point60°
Wed, 1281° / 65°0.16Light rain
81 °Light rain

Sullivan, Wednesday, 12 August

Light rain. High 81°, low 65°.

Pressure29.77 inHg
Wind2.8 mph N
Humidity64%
Visibility6.2 mi
Dew point65°
Thu, 1367° / 59°0.19Light rain
67 °Light rain

Sullivan, Thursday, 13 August

Light rain. High 67°, low 59°.

Pressure29.83 inHg
Wind15.2 mph NW
Humidity95%
Visibility
Dew point59°
Fri, 1470° / 52°0Light rain
70 °Light rain

Sullivan, Friday, 14 August

Light rain. High 70°, low 52°.

Pressure29.97 inHg
Wind12.2 mph NW
Humidity45%
Visibility
Dew point46°
Sat, 1571° / 52°0Partly cloudy
71 °Partly cloudy

Sullivan, Saturday, 15 August

Partly cloudy. High 71°, low 52°.

Pressure30.21 inHg
Wind11.5 mph NW
Humidity44%
Visibility
Dew point46°
Sun, 1675° / 53°0Partly cloudy
75 °Partly cloudy

Sullivan, Sunday, 16 August

Partly cloudy. High 75°, low 53°.

Pressure30.27 inHg
Wind6.2 mph W
Humidity47%
Visibility
Dew point51°
Mon, 1777° / 59°0Overcast
77 °Overcast

Sullivan, Monday, 17 August

Overcast. High 77°, low 59°.

Pressure30.09 inHg
Wind10.5 mph S
Humidity53%
Visibility
Dew point55°
Tue, 1873° / 62°0.32Light rain
73 °Light rain

Sullivan, Tuesday, 18 August

Light rain. High 73°, low 62°.

Pressure29.91 inHg
Wind3.8 mph SE
Humidity73%
Visibility
Dew point62°
Wed, 1974° / 58°0Overcast
74 °Overcast

Sullivan, Wednesday, 19 August

Overcast. High 74°, low 58°.

Pressure29.94 inHg
Wind10.2 mph NW
Humidity53%
Visibility
Dew point54°
Thu, 2076° / 55°0Partly cloudy
76 °Partly cloudy

Sullivan, Thursday, 20 August

Partly cloudy. High 76°, low 55°.

Pressure29.97 inHg
Wind4.8 mph SE
Humidity47%
Visibility
Dew point51°
Fri, 2170° / 59°0.01Light rain
70 °Light rain

Sullivan, Friday, 21 August

Light rain. High 70°, low 59°.

Pressure29.88 inHg
Wind7.1 mph S
Humidity82%
Visibility
Dew point61°
Sat, 2272° / 57°0.04Light rain
72 °Light rain

Sullivan, Saturday, 22 August

Light rain. High 72°, low 57°.

Pressure29.80 inHg
Wind15.2 mph NW
Humidity67%
Visibility
Dew point59°
Sun, 2366° / 50°0.1Light rain
66 °Light rain

Sullivan, Sunday, 23 August

Light rain. High 66°, low 50°.

Pressure30.03 inHg
Wind16.3 mph NW
Humidity43%
Visibility
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2476° / 62°0.12Climate normal
76 °Climate normal

Sullivan, Monday, 24 August

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.12 in
Chance of precipitation38%
Record high90° (2007)
Record low48° (1971)
Tue, 2577° / 62°0.11Climate normal
77 °Climate normal

Sullivan, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high77°
Average low62°
Average precipitation0.11 in
Chance of precipitation37%
Record high92° (2007)
Record low49° (1971)
Wed, 2678° / 62°0.09Climate normal
78 °Climate normal

Sullivan, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.09 in
Chance of precipitation27%
Record high87° (2021)
Record low51° (1977)
Thu, 2777° / 63°0.15Climate normal
77 °Climate normal

Sullivan, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.15 in
Chance of precipitation50%
Record high89° (1993)
Record low49° (1969)
Fri, 2877° / 63°0.22Climate normal
77 °Climate normal

Sullivan, Friday, 28 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.22 in
Chance of precipitation55%
Record high91° (2018)
Record low50° (1986)
Sat, 2976° / 62°0.15Climate normal
76 °Climate normal

Sullivan, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.15 in
Chance of precipitation48%
Record high90° (2007)
Record low47° (1982)
Sun, 3076° / 61°0.13Climate normal
76 °Climate normal

Sullivan, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.13 in
Chance of precipitation38%
Record high90° (1991)
Record low47° (1965)
Mon, 3176° / 61°0.12Climate normal
76 °Climate normal

Sullivan, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.12 in
Chance of precipitation40%
Record high91° (1993)
Record low48° (1965)
Tue, 0175° / 60°0.06Climate normal
75 °Climate normal

Sullivan, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.06 in
Chance of precipitation28%
Record high90° (2010)
Record low49° (1971)
Wed, 0275° / 60°0.13Climate normal
75 °Climate normal

Sullivan, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.13 in
Chance of precipitation37%
Record high89° (2010)
Record low46° (2017)
Thu, 0375° / 61°0.12Climate normal
75 °Climate normal

Sullivan, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.12 in
Chance of precipitation42%
Record high91° (2010)
Record low48° (1976)
Fri, 0475° / 61°0.1Climate normal
75 °Climate normal

Sullivan, Friday, 4 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.1 in
Chance of precipitation32%
Record high91° (1999)
Record low47° (1987)
Sat, 0575° / 60°0.11Climate normal
75 °Climate normal

Sullivan, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.11 in
Chance of precipitation32%
Record high91° (1973)
Record low47° (2000)
Sun, 0675° / 60°0.15Climate normal
75 °Climate normal

Sullivan, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation37%
Record high90° (2023)
Record low48° (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 Sullivan, 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 Sullivan, 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.