Monthly outlook for South Vassalboro, ME: average high 77.8°, average low 57.7°. That is 0.3° above the climate normal for August. Precipitation is expected on 8 days (about 2.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 9 August (87°), the coolest 15 August (49.3°).
77.8°/57.7°
Average high / low
+0.3°
Above normal
8 / 5
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77.9°
78.1°
-0.1°
19 August – 28 August
77.6°
76.1°
+0.8°
29 August – 7 September
at normal
73.7°
—
August records over 66 years
100.4°2 August 1975All-time high
45°31 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Augusta (7 mi).
Mon, 1086° / 65°0.07
86 °
South Vassalboro, Monday, 10 August
Rain. High 86°, low 65°.
Pressure29.91 inHg
Wind7 mph SW
Humidity38%
Visibility6.2 mi
Dew point56°
Tue, 1183° / 63°0
83 °
South Vassalboro, Tuesday, 11 August
Light rain. High 83°, low 63°.
Pressure29.71 inHg
Wind8.9 mph NW
Humidity49%
Visibility6.2 mi
Dew point59°
Wed, 1281° / 59°0.07
81 °
South Vassalboro, Wednesday, 12 August
Light rain. High 81°, low 59°.
Pressure29.74 inHg
Wind5.7 mph SW
Humidity43%
Visibility6.2 mi
Dew point55°
Thu, 1376° / 58°0.25
76 °
South Vassalboro, Thursday, 13 August
Light rain. High 76°, low 58°.
Pressure29.71 inHg
Wind8.3 mph W
Humidity81%
Visibility5.4 mi
Dew point65°
Fri, 1469° / 53°0
69 °
South Vassalboro, Friday, 14 August
Overcast. High 69°, low 53°.
Pressure29.94 inHg
Wind13.8 mph NW
Humidity46%
Visibility—
Dew point44°
Sat, 1577° / 49°0
77 °
South Vassalboro, Saturday, 15 August
Clear. High 77°, low 49°.
Pressure30.15 inHg
Wind5 mph NW
Humidity38%
Visibility—
Dew point42°
Sun, 1673° / 53°1.8
73 °
South Vassalboro, Sunday, 16 August
Heavy rain. High 73°, low 53°.
Pressure30.00 inHg
Wind18.8 mph E
Humidity48%
Visibility—
Dew point49°
Mon, 1769° / 55°0.13
69 °
South Vassalboro, Monday, 17 August
Light rain. High 69°, low 55°.
Pressure29.77 inHg
Wind14.4 mph N
Humidity86%
Visibility—
Dew point54°
Tue, 1878° / 55°0
78 °
South Vassalboro, Tuesday, 18 August
Overcast. High 78°, low 55°.
Pressure30.06 inHg
Wind5.1 mph NW
Humidity49%
Visibility—
Dew point52°
Wed, 1976° / 59°0.17
76 °
South Vassalboro, Wednesday, 19 August
Light rain. High 76°, low 59°.
Pressure29.80 inHg
Wind10.8 mph S
Humidity98%
Visibility—
Dew point66°
Thu, 2081° / 59°0
81 °
South Vassalboro, Thursday, 20 August
Clear. High 81°, low 59°.
Pressure29.88 inHg
Wind9 mph NW
Humidity46%
Visibility—
Dew point51°
Fri, 2173° / 58°0.09
73 °
South Vassalboro, Friday, 21 August
Light rain. High 73°, low 58°.
Pressure29.71 inHg
Wind10 mph S
Humidity65%
Visibility—
Dew point59°
Sat, 2278° / 57°0
78 °
South Vassalboro, Saturday, 22 August
Overcast. High 78°, low 57°.
Pressure29.94 inHg
Wind5.7 mph SW
Humidity54%
Visibility—
Dew point51°
Sun, 2378° / 54°0
78 °
South Vassalboro, Sunday, 23 August
Partly cloudy. High 78°, low 54°.
Pressure30.06 inHg
Wind11.2 mph S
Humidity55%
Visibility—
Dew point55°
Mon, 2479° / 58°0.14
79 °
South Vassalboro, Monday, 24 August
Light rain. High 79°, low 58°.
Pressure29.91 inHg
Wind11.2 mph SW
Humidity56%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 60°0.09
76 °
South Vassalboro, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation35%
Record high88° (1969)
Record low50° (1989)
Wed, 2677° / 60°0.04
77 °
South Vassalboro, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.04 in
Chance of precipitation17%
Record high93° (1993)
Record low51° (1963)
Thu, 2777° / 61°0.04
77 °
South Vassalboro, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.04 in
Chance of precipitation20%
Record high92° (1993)
Record low51° (1989)
Fri, 2876° / 60°0.1
76 °
South Vassalboro, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.1 in
Chance of precipitation28%
Record high92° (2018)
Record low51° (1963)
Sat, 2974° / 60°0.14
74 °
South Vassalboro, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.14 in
Chance of precipitation32%
Record high92° (1977)
Record low46° (1986)
Sun, 3076° / 59°0.12
76 °
South Vassalboro, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.12 in
Chance of precipitation30%
Record high87° (1991)
Record low46° (1965)
Mon, 3175° / 59°0.11
75 °
South Vassalboro, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.11 in
Chance of precipitation28%
Record high91° (2010)
Record low45° (1965)
Tue, 0174° / 59°0.04
74 °
South Vassalboro, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low59°
Average precipitation0.04 in
Chance of precipitation18%
Record high92° (2000)
Record low49° (2002)
Wed, 0273° / 58°0.13
73 °
South Vassalboro, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.13 in
Chance of precipitation25%
Record high91° (1999)
Record low48° (1967)
Thu, 0373° / 58°0.09
73 °
South Vassalboro, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.09 in
Chance of precipitation33%
Record high95° (1999)
Record low49° (1967)
Fri, 0473° / 58°0.16
73 °
South Vassalboro, Friday, 4 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.16 in
Chance of precipitation38%
Record high87° (1999)
Record low48° (1987)
Sat, 0573° / 58°0.08
73 °
South Vassalboro, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high73°
Average low58°
Average precipitation0.08 in
Chance of precipitation23%
Record high87° (1983)
Record low46° (1963)
Sun, 0672° / 57°0.1
72 °
South Vassalboro, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.1 in
Chance of precipitation30%
Record high88° (1983)
Record low47° (2000)
Mon, 0773° / 57°0.16
73 °
South Vassalboro, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0.16 in
Chance of precipitation27%
Record high90° (2015)
Record low48° (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 South Vassalboro, ME 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 Vassalboro, ME 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.