Monthly outlook for East Plymouth, CT: average high 79.8°, average low 59.4°. That is 0.8° above the climate normal for August. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 6 days and 2.5 inches. The warmest day looks like 20 August (86.4°), the coolest 16 August (52.6°).
79.8°/59.4°
Average high / low
+0.8°
Above normal
4 / 6
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.5°
79.3°
-0.4°
19 August – 28 August
82°
77.3°
+2.6°
29 August – 7 September
at normal
75.8°
—
August records over 66 years
97.2°2 August 1975All-time high
44.2°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Plymouth (2 mi).
Mon, 1084° / 65°0.02
84 °
East Plymouth, Monday, 10 August
Light rain. High 84°, low 65°.
Pressure29.97 inHg
Wind7.2 mph SW
Humidity41%
Visibility6.2 mi
Dew point59°
Tue, 1185° / 65°0.01
85 °
East Plymouth, Tuesday, 11 August
Light rain. High 85°, low 65°.
Pressure29.83 inHg
Wind9.7 mph NW
Humidity47%
Visibility6.2 mi
Dew point60°
Wed, 1284° / 60°0
84 °
East Plymouth, Wednesday, 12 August
Overcast. High 84°, low 60°.
Pressure29.83 inHg
Wind2.7 mph SW
Humidity39%
Visibility6.2 mi
Dew point55°
Thu, 1381° / 62°0.05
81 °
East Plymouth, Thursday, 13 August
Light rain. High 81°, low 62°.
Pressure29.71 inHg
Wind13.8 mph NW
Humidity59%
Visibility6.2 mi
Dew point64°
Fri, 1474° / 54°0
74 °
East Plymouth, Friday, 14 August
Clear. High 74°, low 54°.
Pressure29.97 inHg
Wind10.4 mph NW
Humidity46%
Visibility—
Dew point45°
Sat, 1574° / 53°0
74 °
East Plymouth, Saturday, 15 August
Clear. High 74°, low 53°.
Pressure30.12 inHg
Wind12.4 mph NW
Humidity42%
Visibility—
Dew point42°
Sun, 1675° / 53°0
75 °
East Plymouth, Sunday, 16 August
Partly cloudy. High 75°, low 53°.
Pressure30.15 inHg
Wind7.1 mph W
Humidity36%
Visibility—
Dew point43°
Mon, 1763° / 60°0.33
63 °
East Plymouth, Monday, 17 August
Rain. High 63°, low 60°.
Pressure30.00 inHg
Wind8.2 mph N
Humidity88%
Visibility—
Dew point59°
Tue, 1880° / 58°0
80 °
East Plymouth, Tuesday, 18 August
Clear. High 80°, low 58°.
Pressure29.94 inHg
Wind6.8 mph N
Humidity52%
Visibility—
Dew point53°
Wed, 1979° / 61°0
79 °
East Plymouth, Wednesday, 19 August
Overcast. High 79°, low 61°.
Pressure29.94 inHg
Wind11.7 mph S
Humidity52%
Visibility—
Dew point56°
Thu, 2086° / 62°0.05
86 °
East Plymouth, Thursday, 20 August
Light rain. High 86°, low 62°.
Pressure29.68 inHg
Wind8.9 mph NW
Humidity74%
Visibility—
Dew point67°
Fri, 2182° / 55°0
82 °
East Plymouth, Friday, 21 August
Mostly clear. High 82°, low 55°.
Pressure29.85 inHg
Wind7.8 mph W
Humidity58%
Visibility—
Dew point57°
Sat, 2284° / 58°0
84 °
East Plymouth, Saturday, 22 August
Clear. High 84°, low 58°.
Pressure29.97 inHg
Wind9.6 mph SW
Humidity38%
Visibility—
Dew point49°
Sun, 2386° / 63°0.46
86 °
East Plymouth, Sunday, 23 August
Rain. High 86°, low 63°.
Pressure29.77 inHg
Wind15.1 mph W
Humidity75%
Visibility—
Dew point68°
Mon, 2475° / 54°0
75 °
East Plymouth, Monday, 24 August
Clear. High 75°, low 54°.
Pressure30.18 inHg
Wind8.2 mph NW
Humidity49%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 60°0.12
78 °
East Plymouth, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.12 in
Chance of precipitation28%
Record high90° (2020)
Record low48° (1971)
Wed, 2678° / 60°0.09
78 °
East Plymouth, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.09 in
Chance of precipitation28%
Record high90° (2021)
Record low49° (1963)
Thu, 2778° / 62°0.18
78 °
East Plymouth, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.18 in
Chance of precipitation38%
Record high91° (1993)
Record low50° (1989)
Fri, 2878° / 62°0.21
78 °
East Plymouth, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.21 in
Chance of precipitation37%
Record high91° (2018)
Record low51° (1968)
Sat, 2977° / 61°0.17
77 °
East Plymouth, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.17 in
Chance of precipitation37%
Record high91° (2018)
Record low45° (1982)
Sun, 3077° / 60°0.09
77 °
East Plymouth, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.09 in
Chance of precipitation23%
Record high91° (1973)
Record low44° (1986)
Mon, 3177° / 60°0.07
77 °
East Plymouth, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1973)
Record low46° (1965)
Tue, 0176° / 60°0.13
76 °
East Plymouth, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.13 in
Chance of precipitation27%
Record high92° (2010)
Record low48° (1975)
Wed, 0276° / 59°0.16
76 °
East Plymouth, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.16 in
Chance of precipitation30%
Record high93° (2010)
Record low47° (1991)
Thu, 0375° / 59°0.12
75 °
East Plymouth, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.12 in
Chance of precipitation38%
Record high90° (2018)
Record low46° (1967)
Fri, 0476° / 60°0.11
76 °
East Plymouth, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation25%
Record high91° (1973)
Record low48° (1987)
Sat, 0575° / 59°0.07
75 °
East Plymouth, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.07 in
Chance of precipitation27%
Record high91° (2018)
Record low47° (1989)
Sun, 0675° / 59°0.22
75 °
East Plymouth, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.22 in
Chance of precipitation32%
Record high93° (2018)
Record low46° (1989)
Mon, 0775° / 58°0.13
75 °
East Plymouth, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low58°
Average precipitation0.13 in
Chance of precipitation32%
Record high93° (2023)
Record low44° (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 East Plymouth, CT 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 East Plymouth, CT 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.