Monthly outlook for South End, MA: average high 80.9°, average low 60.1°. That is 0.3° above the climate normal for August. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 9 August (89.9°), the coolest 22 August (50.3°).
80.9°/60.1°
Average high / low
+0.3°
Above normal
4 / 5
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
83°
81.2°
+1°
18 August – 27 August
77.5°
79.2°
-0.9°
28 August – 6 September
at normal
77.7°
—
August records over 66 years
100.9°2 August 1975All-time high
45.9°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Springfield (3 mi).
Sun, 0990° / 71°0
90 °
South End, Sunday, 9 August
Clear. High 90°, low 71°.
Pressure29.94 inHg
Wind9.2 mph NW
Humidity41%
Visibility6.2 mi
Dew point62°
Mon, 1087° / 68°0
87 °
South End, Monday, 10 August
Mostly clear. High 87°, low 68°.
Pressure29.94 inHg
Wind7.3 mph SW
Humidity39%
Visibility6.2 mi
Dew point59°
Tue, 1187° / 67°0.01
87 °
South End, Tuesday, 11 August
Light rain. High 87°, low 67°.
Pressure29.83 inHg
Wind10.2 mph NW
Humidity40%
Visibility6.2 mi
Dew point57°
Wed, 1275° / 63°0.15
75 °
South End, Wednesday, 12 August
Light rain. High 75°, low 63°.
Pressure29.74 inHg
Wind4.1 mph NE
Humidity94%
Visibility6.2 mi
Dew point62°
Thu, 1382° / 62°0.03
82 °
South End, Thursday, 13 August
Light rain. High 82°, low 62°.
Pressure29.71 inHg
Wind11.6 mph NW
Humidity45%
Visibility—
Dew point54°
Fri, 1476° / 54°0
76 °
South End, Friday, 14 August
Clear. High 76°, low 54°.
Pressure29.97 inHg
Wind11.6 mph W
Humidity39%
Visibility—
Dew point43°
Sat, 1579° / 56°0
79 °
South End, Saturday, 15 August
Clear. High 79°, low 56°.
Pressure30.03 inHg
Wind11.7 mph NW
Humidity43%
Visibility—
Dew point48°
Sun, 1681° / 52°0
81 °
South End, Sunday, 16 August
Clear. High 81°, low 52°.
Pressure30.18 inHg
Wind4.8 mph NW
Humidity38%
Visibility—
Dew point45°
Mon, 1785° / 54°0.01
85 °
South End, Monday, 17 August
Light rain. High 85°, low 54°.
Pressure30.15 inHg
Wind10.7 mph S
Humidity47%
Visibility—
Dew point52°
Tue, 1877° / 63°0.38
77 °
South End, Tuesday, 18 August
Rain. High 77°, low 63°.
Pressure30.15 inHg
Wind7.4 mph SW
Humidity96%
Visibility—
Dew point65°
Wed, 1979° / 59°0.02
79 °
South End, Wednesday, 19 August
Light rain. High 79°, low 59°.
Pressure30.00 inHg
Wind7.1 mph S
Humidity69%
Visibility—
Dew point60°
Thu, 2076° / 63°0.68
76 °
South End, Thursday, 20 August
Rain. High 76°, low 63°.
Pressure29.62 inHg
Wind10.7 mph W
Humidity96%
Visibility—
Dew point67°
Fri, 2176° / 56°0
76 °
South End, Friday, 21 August
Overcast. High 76°, low 56°.
Pressure29.74 inHg
Wind12.8 mph NW
Humidity64%
Visibility—
Dew point53°
Sat, 2277° / 50°0
77 °
South End, Saturday, 22 August
Clear. High 77°, low 50°.
Pressure30.03 inHg
Wind8.9 mph NW
Humidity31%
Visibility—
Dew point37°
Sun, 2380° / 53°0.01
80 °
South End, Sunday, 23 August
Light rain. High 80°, low 53°.
Pressure30.06 inHg
Wind11.2 mph S
Humidity48%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 61°0.09
78 °
South End, Monday, 24 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation22%
Record high92° (1998)
Record low49° (1971)
Tue, 2579° / 61°0.08
79 °
South End, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.08 in
Chance of precipitation23%
Record high94° (2007)
Record low51° (1971)
Wed, 2680° / 61°0.07
80 °
South End, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.07 in
Chance of precipitation18%
Record high93° (1993)
Record low50° (1963)
Thu, 2780° / 63°0.12
80 °
South End, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation30%
Record high95° (1993)
Record low51° (1989)
Fri, 2880° / 63°0.15
80 °
South End, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.15 in
Chance of precipitation30%
Record high94° (1993)
Record low52° (1968)
Sat, 2978° / 62°0.13
78 °
South End, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation30%
Record high93° (2018)
Record low47° (1982)
Sun, 3079° / 61°0.08
79 °
South End, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.08 in
Chance of precipitation20%
Record high92° (2022)
Record low46° (1986)
Mon, 3178° / 61°0.06
78 °
South End, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high92° (1973)
Record low46° (1965)
Tue, 0177° / 60°0.08
77 °
South End, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.08 in
Chance of precipitation20%
Record high92° (2010)
Record low49° (1975)
Wed, 0277° / 60°0.14
77 °
South End, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.14 in
Chance of precipitation25%
Record high94° (2010)
Record low46° (2017)
Thu, 0377° / 60°0.1
77 °
South End, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.1 in
Chance of precipitation25%
Record high92° (2018)
Record low48° (1967)
Fri, 0478° / 60°0.1
78 °
South End, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.1 in
Chance of precipitation25%
Record high92° (1973)
Record low48° (1987)
Sat, 0577° / 60°0.07
77 °
South End, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.07 in
Chance of precipitation23%
Record high93° (2018)
Record low49° (2000)
Sun, 0676° / 59°0.17
76 °
South End, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.17 in
Chance of precipitation27%
Record high93° (2018)
Record low47° (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 South End, 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 South End, 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.