Monthly outlook for Lake Delta, NY: average high 76.8°, average low 57.2°. That is 0.1° below the climate normal for August. Precipitation is expected on 9 days (about 2.5 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 9 August (86.5°), the coolest 22 August (45.2°).
76.8°/57.2°
Average high / low
−0.1°
Below normal
9 / 7
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
78.3°
77.6°
+0.4°
18 August – 27 August
74.2°
75.7°
-0.8°
28 August – 6 September
at normal
74.6°
—
August records over 66 years
95°9 August 2001All-time high
45°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Sylvan Beach (14 mi).
Sun, 0986° / 67°0
86 °
Lake Delta, Sunday, 9 August
Mostly clear. High 86°, low 67°.
Pressure30.00 inHg
Wind11.6 mph W
Humidity47%
Visibility6.2 mi
Dew point56°
Mon, 1084° / 64°0.12
84 °
Lake Delta, Monday, 10 August
Light rain. High 84°, low 64°.
Pressure29.94 inHg
Wind6 mph SW
Humidity68%
Visibility6.2 mi
Dew point63°
Tue, 1182° / 66°0.01
82 °
Lake Delta, Tuesday, 11 August
Light rain. High 82°, low 66°.
Pressure29.88 inHg
Wind9.4 mph W
Humidity53%
Visibility6.2 mi
Dew point60°
Wed, 1279° / 62°0.25
79 °
Lake Delta, Wednesday, 12 August
Light rain. High 79°, low 62°.
Pressure29.74 inHg
Wind4.6 mph S
Humidity63%
Visibility6.2 mi
Dew point61°
Thu, 1372° / 57°0.09
72 °
Lake Delta, Thursday, 13 August
Light rain. High 72°, low 57°.
Pressure29.77 inHg
Wind14.7 mph W
Humidity45%
Visibility—
Dew point49°
Fri, 1471° / 51°0.04
71 °
Lake Delta, Friday, 14 August
Light rain. High 71°, low 51°.
Pressure30.00 inHg
Wind11.8 mph W
Humidity53%
Visibility—
Dew point50°
Sat, 1573° / 50°0
73 °
Lake Delta, Saturday, 15 August
Clear. High 73°, low 50°.
Pressure30.15 inHg
Wind14.9 mph NW
Humidity39%
Visibility—
Dew point45°
Sun, 1675° / 49°0
75 °
Lake Delta, Sunday, 16 August
Clear. High 75°, low 49°.
Pressure30.18 inHg
Wind8 mph SW
Humidity39%
Visibility—
Dew point46°
Mon, 1777° / 53°0.09
77 °
Lake Delta, Monday, 17 August
Light rain. High 77°, low 53°.
Pressure30.06 inHg
Wind7.9 mph S
Humidity57%
Visibility—
Dew point57°
Tue, 1880° / 61°0.02
80 °
Lake Delta, Tuesday, 18 August
Light rain. High 80°, low 61°.
Pressure30.00 inHg
Wind8.8 mph S
Humidity52%
Visibility—
Dew point59°
Wed, 1978° / 58°0.7
78 °
Lake Delta, Wednesday, 19 August
Rain. High 78°, low 58°.
Pressure29.83 inHg
Wind11.9 mph S
Humidity71%
Visibility—
Dew point65°
Thu, 2066° / 57°0.72
66 °
Lake Delta, Thursday, 20 August
Rain. High 66°, low 57°.
Pressure29.59 inHg
Wind15.6 mph W
Humidity89%
Visibility—
Dew point62°
Fri, 2171° / 53°0
71 °
Lake Delta, Friday, 21 August
Mostly clear. High 71°, low 53°.
Pressure29.85 inHg
Wind15.3 mph NW
Humidity43%
Visibility—
Dew point46°
Sat, 2272° / 45°0
72 °
Lake Delta, Saturday, 22 August
Clear. High 72°, low 45°.
Pressure30.06 inHg
Wind9.5 mph W
Humidity33%
Visibility—
Dew point38°
Sun, 2378° / 53°0.36
78 °
Lake Delta, Sunday, 23 August
Rain. High 78°, low 53°.
Pressure29.88 inHg
Wind9.9 mph SE
Humidity61%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2475° / 60°0.19
75 °
Lake Delta, Monday, 24 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.19 in
Chance of precipitation40%
Record high88° (2020)
Record low46° (1971)
Tue, 2576° / 61°0.12
76 °
Lake Delta, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.12 in
Chance of precipitation35%
Record high92° (2007)
Record low46° (1971)
Wed, 2677° / 61°0.09
77 °
Lake Delta, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation35%
Record high85° (2021)
Record low49° (1977)
Thu, 2776° / 62°0.18
76 °
Lake Delta, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.18 in
Chance of precipitation50%
Record high88° (1993)
Record low47° (1969)
Fri, 2876° / 62°0.26
76 °
Lake Delta, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.26 in
Chance of precipitation52%
Record high90° (2018)
Record low49° (1968)
Sat, 2975° / 61°0.18
75 °
Lake Delta, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.18 in
Chance of precipitation52%
Record high90° (2018)
Record low46° (1982)
Sun, 3075° / 60°0.15
75 °
Lake Delta, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation38%
Record high90° (1991)
Record low45° (1965)
Mon, 3175° / 59°0.15
75 °
Lake Delta, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.15 in
Chance of precipitation48%
Record high90° (1973)
Record low46° (1965)
Tue, 0174° / 59°0.07
74 °
Lake Delta, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.07 in
Chance of precipitation30%
Record high88° (2010)
Record low47° (1967)
Wed, 0275° / 59°0.16
75 °
Lake Delta, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.16 in
Chance of precipitation42%
Record high88° (2010)
Record low45° (2017)
Thu, 0374° / 59°0.15
74 °
Lake Delta, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.15 in
Chance of precipitation37%
Record high90° (2010)
Record low46° (1976)
Fri, 0474° / 60°0.13
74 °
Lake Delta, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.13 in
Chance of precipitation35%
Record high91° (1999)
Record low46° (1987)
Sat, 0574° / 59°0.12
74 °
Lake Delta, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.12 in
Chance of precipitation28%
Record high91° (1973)
Record low46° (2000)
Sun, 0674° / 59°0.18
74 °
Lake Delta, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.18 in
Chance of precipitation38%
Record high89° (2007)
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 Lake Delta, 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 Lake Delta, 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.