As of 20:03 EDT

Weather in Greenlawn, NY

81°Current weather

Greenlawn, Saturday, 8 August, 20:03

Overcast. Feels like 85°. High 87°, low 71°.

Pressure29.91 inHg
Wind3 mph SW
Humidity68%
Visibility6.2 mi
Dew point68°

Monthly outlook for Greenlawn, NY: average high 81.2°, average low 70°. That is 1.9° above the climate normal for August. Precipitation is expected on 6 days (about 2.9 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 9 August (91.5°), the coolest 23 August (62.3°).

81.2°/70°
Average high / low
+1.9°
Above normal
6 / 5
Wet days / normal
2.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August83.6°78.3°+2.9°
18 August – 27 August77.1°76.9°+0.1°
28 August – 6 Septemberat normal75.8°

August records over 66 years

92.3°27 August 2020All-time high
52.7°29 August 1982All-time low

Climate normals and records are computed from the nearest reference point — Farmingdale (10 mi).

Sun, 0992° / 73°0Light rain
92 °Light rain

Greenlawn, Sunday, 9 August

Light rain. High 92°, low 73°.

Pressure29.94 inHg
Wind5.3 mph W
Humidity43%
Visibility6.2 mi
Dew point64°
Mon, 1090° / 72°0Light rain
90 °Light rain

Greenlawn, Monday, 10 August

Light rain. High 90°, low 72°.

Pressure29.97 inHg
Wind4.9 mph S
Humidity46%
Visibility6.2 mi
Dew point62°
Tue, 1191° / 77°0.04Light rain
91 °Light rain

Greenlawn, Tuesday, 11 August

Light rain. High 91°, low 77°.

Pressure29.85 inHg
Wind8.1 mph NW
Humidity40%
Visibility6.2 mi
Dew point58°
Wed, 1279° / 72°0.44Rain
79 °Rain

Greenlawn, Wednesday, 12 August

Rain. High 79°, low 72°.

Pressure29.74 inHg
Wind7.5 mph N
Humidity69%
Visibility6.2 mi
Dew point65°
Thu, 1387° / 70°0.09Light rain
87 °Light rain

Greenlawn, Thursday, 13 August

Light rain. High 87°, low 70°.

Pressure29.74 inHg
Wind16.8 mph NW
Humidity60%
Visibility
Dew point66°
Fri, 1479° / 68°0Overcast
79 °Overcast

Greenlawn, Friday, 14 August

Overcast. High 79°, low 68°.

Pressure29.94 inHg
Wind14.4 mph NW
Humidity42%
Visibility
Dew point47°
Sat, 1577° / 64°0Clear
77 °Clear

Greenlawn, Saturday, 15 August

Clear. High 77°, low 64°.

Pressure30.15 inHg
Wind11.7 mph N
Humidity39%
Visibility
Dew point44°
Sun, 1677° / 67°0Partly cloudy
77 °Partly cloudy

Greenlawn, Sunday, 16 August

Partly cloudy. High 77°, low 67°.

Pressure30.30 inHg
Wind9.6 mph SW
Humidity37%
Visibility
Dew point44°
Mon, 1778° / 70°0Overcast
78 °Overcast

Greenlawn, Monday, 17 August

Overcast. High 78°, low 70°.

Pressure30.21 inHg
Wind13.4 mph S
Humidity44%
Visibility
Dew point52°
Tue, 1880° / 73°0.2Light rain
80 °Light rain

Greenlawn, Tuesday, 18 August

Light rain. High 80°, low 73°.

Pressure30.00 inHg
Wind13.8 mph SW
Humidity69%
Visibility
Dew point66°
Wed, 1981° / 71°0.1Light rain
81 °Light rain

Greenlawn, Wednesday, 19 August

Light rain. High 81°, low 71°.

Pressure29.85 inHg
Wind8.3 mph N
Humidity62%
Visibility
Dew point63°
Thu, 2077° / 70°0.02Light rain
77 °Light rain

Greenlawn, Thursday, 20 August

Light rain. High 77°, low 70°.

Pressure29.97 inHg
Wind8.9 mph N
Humidity64%
Visibility
Dew point60°
Fri, 2176° / 69°1.33Heavy rain
76 °Heavy rain

Greenlawn, Friday, 21 August

Heavy rain. High 76°, low 69°.

Pressure29.97 inHg
Wind13.6 mph S
Humidity59%
Visibility
Dew point58°
Sat, 2277° / 70°0.69Heavy rain
77 °Heavy rain

Greenlawn, Saturday, 22 August

Heavy rain. High 77°, low 70°.

Pressure29.77 inHg
Wind13.2 mph SW
Humidity89%
Visibility
Dew point67°
Sun, 2371° / 62°0Clear
71 °Clear

Greenlawn, Sunday, 23 August

Clear. High 71°, low 62°.

Pressure29.94 inHg
Wind19.5 mph NW
Humidity45%
Visibility
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2476° / 67°0.08Climate normal
76 °Climate normal

Greenlawn, Monday, 24 August

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.08 in
Chance of precipitation23%
Record high89° (2021)
Record low56° (1971)
Tue, 2577° / 67°0.09Climate normal
77 °Climate normal

Greenlawn, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.09 in
Chance of precipitation23%
Record high91° (2020)
Record low58° (1963)
Wed, 2677° / 68°0.07Climate normal
77 °Climate normal

Greenlawn, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high77°
Average low68°
Average precipitation0.07 in
Chance of precipitation23%
Record high89° (2021)
Record low61° (1960)
Thu, 2778° / 68°0.13Climate normal
78 °Climate normal

Greenlawn, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.13 in
Chance of precipitation33%
Record high92° (2020)
Record low59° (2019)
Fri, 2877° / 68°0.19Climate normal
77 °Climate normal

Greenlawn, Friday, 28 August

Climate normal for this date — 60-year average.

Average high77°
Average low68°
Average precipitation0.19 in
Chance of precipitation42%
Record high91° (2024)
Record low57° (2025)
Sat, 2976° / 68°0.14Climate normal
76 °Climate normal

Greenlawn, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high76°
Average low68°
Average precipitation0.14 in
Chance of precipitation32%
Record high89° (2018)
Record low53° (1982)
Sun, 3077° / 67°0.08Climate normal
77 °Climate normal

Greenlawn, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.08 in
Chance of precipitation28%
Record high88° (2018)
Record low55° (1965)
Mon, 3176° / 67°0.05Climate normal
76 °Climate normal

Greenlawn, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.05 in
Chance of precipitation20%
Record high88° (2010)
Record low56° (1976)
Tue, 0175° / 67°0.07Climate normal
75 °Climate normal

Greenlawn, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high75°
Average low67°
Average precipitation0.07 in
Chance of precipitation28%
Record high86° (1973)
Record low54° (2017)
Wed, 0275° / 66°0.15Climate normal
75 °Climate normal

Greenlawn, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.15 in
Chance of precipitation30%
Record high86° (1966)
Record low54° (2017)
Thu, 0376° / 66°0.11Climate normal
76 °Climate normal

Greenlawn, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high76°
Average low66°
Average precipitation0.11 in
Chance of precipitation30%
Record high87° (2023)
Record low56° (2024)
Fri, 0476° / 67°0.12Climate normal
76 °Climate normal

Greenlawn, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.12 in
Chance of precipitation25%
Record high90° (2018)
Record low55° (2024)
Sat, 0575° / 66°0.05Climate normal
75 °Climate normal

Greenlawn, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.05 in
Chance of precipitation17%
Record high93° (2023)
Record low56° (2024)
Sun, 0675° / 66°0.17Climate normal
75 °Climate normal

Greenlawn, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.17 in
Chance of precipitation38%
Record high92° (2023)
Record low56° (1962)

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 Greenlawn, 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 Greenlawn, 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.