Monthly outlook for Old Common, MA: average high 78.5°, average low 60.9°. That is 0.5° below the climate normal for August. Precipitation is expected on 8 days (about 4.3 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 9 August (91.6°), the coolest 15 August (52.4°).
78.5°/60.9°
Average high / low
−0.5°
Below normal
8 / 5
Wet days / normal
4.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
81°
80.1°
+0.5°
18 August – 27 August
74.3°
78.1°
-2.1°
28 August – 6 September
at normal
76.6°
—
August records over 66 years
100.4°2 August 1975All-time high
44.8°31 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Worcester (6 mi).
Sun, 0992° / 71°0
92 °
Old Common, Sunday, 9 August
Clear. High 92°, low 71°.
Pressure29.91 inHg
Wind8.5 mph W
Humidity43%
Visibility6.2 mi
Dew point62°
Mon, 1088° / 68°0.01
88 °
Old Common, Monday, 10 August
Light rain. High 88°, low 68°.
Pressure29.97 inHg
Wind6.8 mph SW
Humidity39%
Visibility6.2 mi
Dew point58°
Tue, 1187° / 69°0
87 °
Old Common, Tuesday, 11 August
Partly cloudy. High 87°, low 69°.
Pressure29.83 inHg
Wind13.6 mph NW
Humidity40%
Visibility6.2 mi
Dew point56°
Wed, 1269° / 60°0.18
69 °
Old Common, Wednesday, 12 August
Rain. High 69°, low 60°.
Pressure29.77 inHg
Wind5.7 mph NE
Humidity97%
Visibility6.2 mi
Dew point63°
Thu, 1380° / 58°0.15
80 °
Old Common, Thursday, 13 August
Light rain. High 80°, low 58°.
Pressure29.74 inHg
Wind10.9 mph NW
Humidity89%
Visibility—
Dew point67°
Fri, 1476° / 53°0
76 °
Old Common, Friday, 14 August
Partly cloudy. High 76°, low 53°.
Pressure29.91 inHg
Wind9.4 mph W
Humidity41%
Visibility—
Dew point43°
Sat, 1575° / 52°0
75 °
Old Common, Saturday, 15 August
Clear. High 75°, low 52°.
Pressure30.09 inHg
Wind8.3 mph NW
Humidity41%
Visibility—
Dew point43°
Sun, 1678° / 53°0
78 °
Old Common, Sunday, 16 August
Partly cloudy. High 78°, low 53°.
Pressure30.27 inHg
Wind5.1 mph N
Humidity35%
Visibility—
Dew point41°
Mon, 1780° / 56°0
80 °
Old Common, Monday, 17 August
Overcast. High 80°, low 56°.
Pressure30.21 inHg
Wind8.9 mph SW
Humidity42%
Visibility—
Dew point48°
Tue, 1872° / 64°0.93
72 °
Old Common, Tuesday, 18 August
Rain. High 72°, low 64°.
Pressure30.03 inHg
Wind8.4 mph SW
Humidity98%
Visibility—
Dew point66°
Wed, 1979° / 62°0.04
79 °
Old Common, Wednesday, 19 August
Light rain. High 79°, low 62°.
Pressure29.85 inHg
Wind4.9 mph NE
Humidity60%
Visibility—
Dew point60°
Thu, 2077° / 61°0.13
77 °
Old Common, Thursday, 20 August
Light rain. High 77°, low 61°.
Pressure30.00 inHg
Wind5.5 mph E
Humidity78%
Visibility—
Dew point61°
Fri, 2173° / 59°1.48
73 °
Old Common, Friday, 21 August
Heavy rain. High 73°, low 59°.
Pressure30.00 inHg
Wind8.3 mph S
Humidity75%
Visibility—
Dew point62°
Sat, 2275° / 62°0.57
75 °
Old Common, Saturday, 22 August
Rain. High 75°, low 62°.
Pressure29.77 inHg
Wind8.6 mph W
Humidity99%
Visibility—
Dew point67°
Sun, 2369° / 55°0
69 °
Old Common, Sunday, 23 August
Mostly clear. High 69°, low 55°.
Pressure29.83 inHg
Wind14.8 mph NW
Humidity45%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2477° / 61°0.08
77 °
Old Common, Monday, 24 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.08 in
Chance of precipitation28%
Record high91° (1998)
Record low50° (1971)
Tue, 2578° / 61°0.09
78 °
Old Common, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation27%
Record high95° (2007)
Record low52° (1971)
Wed, 2679° / 62°0.07
79 °
Old Common, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation18%
Record high93° (1993)
Record low51° (2019)
Thu, 2779° / 63°0.1
79 °
Old Common, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.1 in
Chance of precipitation35%
Record high95° (1993)
Record low52° (1989)
Fri, 2878° / 63°0.15
78 °
Old Common, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.15 in
Chance of precipitation32%
Record high93° (1993)
Record low52° (1986)
Sat, 2977° / 62°0.17
77 °
Old Common, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.17 in
Chance of precipitation35%
Record high92° (2018)
Record low47° (1982)
Sun, 3078° / 61°0.1
78 °
Old Common, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.1 in
Chance of precipitation25%
Record high92° (1973)
Record low46° (1965)
Mon, 3177° / 61°0.07
77 °
Old Common, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.07 in
Chance of precipitation32%
Record high94° (1973)
Record low45° (1965)
Tue, 0176° / 60°0.07
76 °
Old Common, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.07 in
Chance of precipitation28%
Record high92° (2010)
Record low50° (1975)
Wed, 0276° / 59°0.14
76 °
Old Common, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.14 in
Chance of precipitation25%
Record high93° (2010)
Record low48° (2017)
Thu, 0376° / 60°0.12
76 °
Old Common, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.12 in
Chance of precipitation30%
Record high91° (1973)
Record low49° (1967)
Fri, 0476° / 60°0.11
76 °
Old Common, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation22%
Record high92° (1973)
Record low50° (1987)
Sat, 0576° / 60°0.07
76 °
Old Common, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.07 in
Chance of precipitation18%
Record high91° (2018)
Record low49° (2000)
Sun, 0675° / 59°0.15
75 °
Old Common, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.15 in
Chance of precipitation30%
Record high92° (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 Old Common, 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 Old Common, 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.