Monthly outlook for Bohemia, NY: average high 82.1°, average low 69.9°. That is 2.2° above the climate normal for August. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 9 August (90.6°), the coolest 22 August (64.2°).
82.1°/69.9°
Average high / low
+2.2°
Above normal
4 / 5
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.4°
78.7°
+2.6°
19 August – 28 August
80°
77.2°
+1.5°
29 August – 7 September
at normal
76°
—
August records over 66 years
93°2 August 1975All-time high
52.5°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Islip (4 mi).
Mon, 1089° / 73°0.01
89 °
Bohemia, Monday, 10 August
Light rain. High 89°, low 73°.
Pressure29.97 inHg
Wind6.9 mph SW
Humidity46%
Visibility6.2 mi
Dew point61°
Tue, 1190° / 77°0
90 °
Bohemia, Tuesday, 11 August
Overcast. High 90°, low 77°.
Pressure29.85 inHg
Wind10.4 mph NW
Humidity38%
Visibility6.2 mi
Dew point58°
Wed, 1280° / 71°0.09
80 °
Bohemia, Wednesday, 12 August
Light rain. High 80°, low 71°.
Pressure29.71 inHg
Wind2 mph NW
Humidity76%
Visibility6.2 mi
Dew point67°
Thu, 1386° / 72°0.15
86 °
Bohemia, Thursday, 13 August
Light rain. High 86°, low 72°.
Pressure29.71 inHg
Wind15.4 mph NW
Humidity50%
Visibility—
Dew point60°
Fri, 1480° / 66°0
80 °
Bohemia, Friday, 14 August
Clear. High 80°, low 66°.
Pressure30.00 inHg
Wind10.3 mph NW
Humidity39%
Visibility—
Dew point46°
Sat, 1582° / 67°0
82 °
Bohemia, Saturday, 15 August
Clear. High 82°, low 67°.
Pressure30.09 inHg
Wind12.7 mph NW
Humidity39%
Visibility—
Dew point47°
Sun, 1680° / 66°0
80 °
Bohemia, Sunday, 16 August
Overcast. High 80°, low 66°.
Pressure30.18 inHg
Wind9.3 mph N
Humidity34%
Visibility—
Dew point44°
Mon, 1779° / 71°0
79 °
Bohemia, Monday, 17 August
Overcast. High 79°, low 71°.
Pressure30.18 inHg
Wind13 mph S
Humidity51%
Visibility—
Dew point57°
Tue, 1878° / 68°0.1
78 °
Bohemia, Tuesday, 18 August
Light rain. High 78°, low 68°.
Pressure30.15 inHg
Wind8.1 mph SW
Humidity71%
Visibility—
Dew point62°
Wed, 1979° / 70°0
79 °
Bohemia, Wednesday, 19 August
Overcast. High 79°, low 70°.
Pressure30.00 inHg
Wind12.7 mph S
Humidity64%
Visibility—
Dew point59°
Thu, 2081° / 67°1.2
81 °
Bohemia, Thursday, 20 August
Heavy rain. High 81°, low 67°.
Pressure29.65 inHg
Wind15.8 mph NW
Humidity84%
Visibility—
Dew point67°
Fri, 2178° / 67°0
78 °
Bohemia, Friday, 21 August
Overcast. High 78°, low 67°.
Pressure29.80 inHg
Wind14.9 mph NW
Humidity57%
Visibility—
Dew point54°
Sat, 2279° / 64°0
79 °
Bohemia, Saturday, 22 August
Clear. High 79°, low 64°.
Pressure30.03 inHg
Wind9.2 mph NW
Humidity34%
Visibility—
Dew point42°
Sun, 2378° / 71°0
78 °
Bohemia, Sunday, 23 August
Overcast. High 78°, low 71°.
Pressure30.06 inHg
Wind17.5 mph S
Humidity53%
Visibility—
Dew point58°
Mon, 2486° / 75°0
86 °
Bohemia, Monday, 24 August
Mostly clear. High 86°, low 75°.
Pressure29.85 inHg
Wind16.5 mph SW
Humidity52%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 67°0.09
78 °
Bohemia, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high88° (2020)
Record low58° (1963)
Wed, 2678° / 68°0.08
78 °
Bohemia, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.08 in
Chance of precipitation22%
Record high86° (2016)
Record low60° (1963)
Thu, 2778° / 69°0.12
78 °
Bohemia, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.12 in
Chance of precipitation33%
Record high89° (2020)
Record low59° (1969)
Fri, 2878° / 69°0.19
78 °
Bohemia, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.19 in
Chance of precipitation33%
Record high87° (1973)
Record low58° (1986)
Sat, 2977° / 68°0.14
77 °
Bohemia, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.14 in
Chance of precipitation28%
Record high87° (2010)
Record low53° (1982)
Sun, 3077° / 67°0.07
77 °
Bohemia, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.07 in
Chance of precipitation25%
Record high88° (1973)
Record low55° (1965)
Mon, 3177° / 67°0.05
77 °
Bohemia, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low67°
Average precipitation0.05 in
Chance of precipitation18%
Record high90° (2010)
Record low56° (1976)
Tue, 0176° / 67°0.06
76 °
Bohemia, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.06 in
Chance of precipitation25%
Record high88° (2010)
Record low55° (2017)
Wed, 0275° / 66°0.19
75 °
Bohemia, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.19 in
Chance of precipitation28%
Record high87° (1966)
Record low56° (2017)
Thu, 0376° / 66°0.11
76 °
Bohemia, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.11 in
Chance of precipitation28%
Record high85° (1973)
Record low56° (1967)
Fri, 0476° / 67°0.13
76 °
Bohemia, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low67°
Average precipitation0.13 in
Chance of precipitation23%
Record high85° (2018)
Record low56° (1997)
Sat, 0575° / 66°0.05
75 °
Bohemia, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.05 in
Chance of precipitation17%
Record high87° (2023)
Record low56° (2000)
Sun, 0675° / 66°0.13
75 °
Bohemia, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.13 in
Chance of precipitation32%
Record high89° (2023)
Record low56° (1962)
Mon, 0775° / 66°0.08
75 °
Bohemia, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.08 in
Chance of precipitation30%
Record high87° (2023)
Record low56° (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 Bohemia, 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 Bohemia, 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.