As of 14:58 EDT

Weather in Boston, MA

90°Current weather

Boston, Saturday, 8 August, 14:58

Overcast. Feels like 98°. High 91°, low 72°.

Pressure29.85 inHg
Wind3 mph E
Humidity58%
Visibility6.2 mi
Dew point72°

Monthly outlook for Boston, MA: average high 79.5°, average low 64.6°. That is 0.1° above the climate normal for August. Precipitation is expected on 7 days (about 5.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (95.1°), the coolest 14 August (59.2°).

79.5°/64.6°
Average high / low
+0.1°
Above normal
7 / 5
Wet days / normal
5.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August83.3°80.1°+1.8°
18 August – 27 August73.3°78.1°-2.7°
28 August – 6 Septemberat normal76.4°

August records over 66 years

99.9°4 August 2022All-time high
48.4°31 August 1965All-time low
Sun, 0995° / 73°0Clear
95 °Clear

Boston, Sunday, 9 August

Clear. High 95°, low 73°.

Pressure29.88 inHg
Wind10.5 mph W
Humidity39%
Visibility6.2 mi
Dew point61°
Mon, 1091° / 71°0.06Light rain
91 °Light rain

Boston, Monday, 10 August

Light rain. High 91°, low 71°.

Pressure29.94 inHg
Wind4.5 mph S
Humidity34%
Visibility6.2 mi
Dew point57°
Tue, 1189° / 70°0Mostly clear
89 °Mostly clear

Boston, Tuesday, 11 August

Mostly clear. High 89°, low 70°.

Pressure29.77 inHg
Wind12.1 mph NW
Humidity34%
Visibility6.2 mi
Dew point56°
Wed, 1274° / 63°0.59Rain
74 °Rain

Boston, Wednesday, 12 August

Rain. High 74°, low 63°.

Pressure29.77 inHg
Wind6.9 mph E
Humidity93%
Visibility6.2 mi
Dew point63°
Thu, 1378° / 62°0.33Light rain
78 °Light rain

Boston, Thursday, 13 August

Light rain. High 78°, low 62°.

Pressure29.71 inHg
Wind11.7 mph W
Humidity70%
Visibility
Dew point65°
Fri, 1479° / 59°0Overcast
79 °Overcast

Boston, Friday, 14 August

Overcast. High 79°, low 59°.

Pressure29.88 inHg
Wind8.8 mph W
Humidity42%
Visibility
Dew point45°
Sat, 1576° / 60°0Clear
76 °Clear

Boston, Saturday, 15 August

Clear. High 76°, low 60°.

Pressure30.09 inHg
Wind7.9 mph NW
Humidity40%
Visibility
Dew point45°
Sun, 1678° / 59°0Clear
78 °Clear

Boston, Sunday, 16 August

Clear. High 78°, low 59°.

Pressure30.27 inHg
Wind10.8 mph S
Humidity34%
Visibility
Dew point42°
Mon, 1783° / 61°0Overcast
83 °Overcast

Boston, Monday, 17 August

Overcast. High 83°, low 61°.

Pressure30.21 inHg
Wind10.9 mph SW
Humidity35%
Visibility
Dew point46°
Tue, 1871° / 66°1.67Heavy rain
71 °Heavy rain

Boston, Tuesday, 18 August

Heavy rain. High 71°, low 66°.

Pressure30.03 inHg
Wind11 mph S
Humidity97%
Visibility
Dew point66°
Wed, 1974° / 65°0Partly cloudy
74 °Partly cloudy

Boston, Wednesday, 19 August

Partly cloudy. High 74°, low 65°.

Pressure29.85 inHg
Wind6.9 mph E
Humidity70%
Visibility
Dew point62°
Thu, 2074° / 64°0Overcast
74 °Overcast

Boston, Thursday, 20 August

Overcast. High 74°, low 64°.

Pressure30.00 inHg
Wind8.2 mph E
Humidity65%
Visibility
Dew point58°
Fri, 2174° / 62°0.95Heavy rain
74 °Heavy rain

Boston, Friday, 21 August

Heavy rain. High 74°, low 62°.

Pressure30.00 inHg
Wind11 mph S
Humidity61%
Visibility
Dew point58°
Sat, 2274° / 66°1.34Heavy rain
74 °Heavy rain

Boston, Saturday, 22 August

Heavy rain. High 74°, low 66°.

Pressure29.77 inHg
Wind10.7 mph S
Humidity96%
Visibility
Dew point69°
Sun, 2372° / 59°0Clear
72 °Clear

Boston, Sunday, 23 August

Clear. High 72°, low 59°.

Pressure29.77 inHg
Wind13.8 mph W
Humidity51%
Visibility
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2477° / 62°0.08Climate normal
77 °Climate normal

Boston, Monday, 24 August

Climate normal for this date — 60-year average.

Average high77°
Average low62°
Average precipitation0.08 in
Chance of precipitation30%
Record high91° (1998)
Record low53° (1971)
Tue, 2578° / 62°0.1Climate normal
78 °Climate normal

Boston, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.1 in
Chance of precipitation27%
Record high93° (1969)
Record low54° (1971)
Wed, 2679° / 63°0.06Climate normal
79 °Climate normal

Boston, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.06 in
Chance of precipitation17%
Record high93° (2021)
Record low51° (1981)
Thu, 2779° / 64°0.07Climate normal
79 °Climate normal

Boston, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high79°
Average low64°
Average precipitation0.07 in
Chance of precipitation30%
Record high95° (1993)
Record low52° (2019)
Fri, 2878° / 64°0.11Climate normal
78 °Climate normal

Boston, Friday, 28 August

Climate normal for this date — 60-year average.

Average high78°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high94° (2018)
Record low54° (1986)
Sat, 2977° / 63°0.18Climate normal
77 °Climate normal

Boston, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.18 in
Chance of precipitation25%
Record high96° (2018)
Record low49° (1986)
Sun, 3078° / 63°0.15Climate normal
78 °Climate normal

Boston, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high78°
Average low63°
Average precipitation0.15 in
Chance of precipitation20%
Record high91° (1973)
Record low49° (1965)
Mon, 3178° / 62°0.07Climate normal
78 °Climate normal

Boston, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation23%
Record high91° (2010)
Record low48° (1965)
Tue, 0176° / 61°0.06Climate normal
76 °Climate normal

Boston, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.06 in
Chance of precipitation22%
Record high92° (2010)
Record low51° (1975)
Wed, 0275° / 61°0.17Climate normal
75 °Climate normal

Boston, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.17 in
Chance of precipitation25%
Record high93° (2010)
Record low49° (2017)
Thu, 0376° / 61°0.14Climate normal
76 °Climate normal

Boston, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.14 in
Chance of precipitation33%
Record high94° (2018)
Record low51° (1967)
Fri, 0476° / 61°0.12Climate normal
76 °Climate normal

Boston, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.12 in
Chance of precipitation22%
Record high89° (1973)
Record low52° (1987)
Sat, 0576° / 61°0.07Climate normal
76 °Climate normal

Boston, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high76°
Average low61°
Average precipitation0.07 in
Chance of precipitation17%
Record high91° (2018)
Record low51° (1994)
Sun, 0675° / 60°0.15Climate normal
75 °Climate normal

Boston, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation33%
Record high96° (2018)
Record low50° (1965)

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 Boston, MA 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 Boston, MA 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.