Monthly outlook for Grasmere, NY: average high 82°, average low 71°. That is 0.5° above the climate normal for August. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 9 August (91.7°), the coolest 23 August (62.8°).
82°/71°
Average high / low
+0.5°
Above normal
4 / 6
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84°
81.9°
+1.2°
18 August – 27 August
78.7°
80.2°
-0.8°
28 August – 6 September
at normal
79.1°
—
August records over 66 years
99.3°2 August 2006All-time high
50.4°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Brooklyn (8 mi).
Sun, 0992° / 74°0.01
92 °
Grasmere, Sunday, 9 August
Light rain. High 92°, low 74°.
Pressure29.94 inHg
Wind7.5 mph W
Humidity50%
Visibility6.2 mi
Dew point66°
Mon, 1088° / 74°0.02
88 °
Grasmere, Monday, 10 August
Light rain. High 88°, low 74°.
Pressure29.97 inHg
Wind4.2 mph SW
Humidity54%
Visibility6.2 mi
Dew point65°
Tue, 1189° / 77°0.03
89 °
Grasmere, Tuesday, 11 August
Light rain. High 89°, low 77°.
Pressure29.88 inHg
Wind6.4 mph NW
Humidity45%
Visibility6.2 mi
Dew point61°
Wed, 1282° / 74°0.2
82 °
Grasmere, Wednesday, 12 August
Rain. High 82°, low 74°.
Pressure29.74 inHg
Wind6.5 mph W
Humidity59%
Visibility6.2 mi
Dew point66°
Thu, 1386° / 72°0
86 °
Grasmere, Thursday, 13 August
Overcast. High 86°, low 72°.
Pressure29.71 inHg
Wind19 mph W
Humidity48%
Visibility—
Dew point63°
Fri, 1480° / 69°0
80 °
Grasmere, Friday, 14 August
Partly cloudy. High 80°, low 69°.
Pressure29.91 inHg
Wind22.1 mph N
Humidity31%
Visibility—
Dew point43°
Sat, 1579° / 66°0
79 °
Grasmere, Saturday, 15 August
Clear. High 79°, low 66°.
Pressure30.15 inHg
Wind18.1 mph NW
Humidity33%
Visibility—
Dew point44°
Sun, 1678° / 68°0
78 °
Grasmere, Sunday, 16 August
Partly cloudy. High 78°, low 68°.
Pressure30.27 inHg
Wind12.1 mph S
Humidity35%
Visibility—
Dew point46°
Mon, 1779° / 69°0
79 °
Grasmere, Monday, 17 August
Partly cloudy. High 79°, low 69°.
Pressure30.15 inHg
Wind20 mph SE
Humidity49%
Visibility—
Dew point56°
Tue, 1882° / 73°0.12
82 °
Grasmere, Tuesday, 18 August
Light rain. High 82°, low 73°.
Pressure29.91 inHg
Wind13.6 mph SW
Humidity59%
Visibility—
Dew point65°
Wed, 1984° / 73°0.01
84 °
Grasmere, Wednesday, 19 August
Light rain. High 84°, low 73°.
Pressure29.83 inHg
Wind15 mph NW
Humidity48%
Visibility—
Dew point60°
Thu, 2079° / 71°0
79 °
Grasmere, Thursday, 20 August
Overcast. High 79°, low 71°.
Pressure29.97 inHg
Wind11.9 mph N
Humidity49%
Visibility—
Dew point54°
Fri, 2176° / 71°1.57
76 °
Grasmere, Friday, 21 August
Heavy rain. High 76°, low 71°.
Pressure29.97 inHg
Wind15.2 mph S
Humidity47%
Visibility—
Dew point54°
Sat, 2279° / 70°0.28
79 °
Grasmere, Saturday, 22 August
Rain. High 79°, low 70°.
Pressure29.77 inHg
Wind11.1 mph N
Humidity90%
Visibility—
Dew point67°
Sun, 2372° / 63°0
72 °
Grasmere, Sunday, 23 August
Mostly clear. High 72°, low 63°.
Pressure29.97 inHg
Wind22.5 mph NW
Humidity45%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 65°0.07
80 °
Grasmere, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high92° (1998)
Record low54° (1971)
Tue, 2581° / 65°0.07
81 °
Grasmere, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (1968)
Record low55° (1971)
Wed, 2681° / 66°0.07
81 °
Grasmere, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.07 in
Chance of precipitation23%
Record high91° (2016)
Record low56° (1963)
Thu, 2781° / 67°0.15
81 °
Grasmere, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0.15 in
Chance of precipitation32%
Record high94° (2020)
Record low57° (1969)
Fri, 2881° / 67°0.2
81 °
Grasmere, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0.2 in
Chance of precipitation38%
Record high94° (2024)
Record low57° (1986)
Sat, 2980° / 67°0.14
80 °
Grasmere, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.14 in
Chance of precipitation33%
Record high92° (2018)
Record low50° (1982)
Sun, 3080° / 66°0.06
80 °
Grasmere, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.06 in
Chance of precipitation27%
Record high93° (1973)
Record low53° (1965)
Mon, 3180° / 65°0.05
80 °
Grasmere, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.05 in
Chance of precipitation17%
Record high94° (2010)
Record low51° (1976)
Tue, 0179° / 65°0.11
79 °
Grasmere, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.11 in
Chance of precipitation32%
Record high93° (2010)
Record low55° (2017)
Wed, 0278° / 64°0.16
78 °
Grasmere, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.16 in
Chance of precipitation33%
Record high93° (1980)
Record low54° (2017)
Thu, 0379° / 65°0.12
79 °
Grasmere, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.12 in
Chance of precipitation30%
Record high91° (1993)
Record low51° (1967)
Fri, 0479° / 65°0.11
79 °
Grasmere, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.11 in
Chance of precipitation30%
Record high94° (2023)
Record low54° (1997)
Sat, 0578° / 64°0.05
78 °
Grasmere, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.05 in
Chance of precipitation22%
Record high94° (2023)
Record low54° (1997)
Sun, 0678° / 64°0.19
78 °
Grasmere, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.19 in
Chance of precipitation30%
Record high94° (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 Grasmere, 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 Grasmere, 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.