Monthly outlook for Gaines Mill, VA: average high 86.7°, average low 67.3°. That is 0.5° above the climate normal for August. Precipitation is expected on 7 days (about 0.8 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 10 August (100.5°), the coolest 15 August (58.4°).
86.7°/67.3°
Average high / low
+0.5°
Above normal
7 / 6
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.9°
86.4°
-0.2°
19 August – 28 August
88°
85.3°
+1.5°
29 August – 7 September
at normal
84.1°
—
August records over 66 years
103.6°8 August 2007All-time high
51.6°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Richmond (10 mi).
Mon, 10100° / 74°0
100 °
Gaines Mill, Monday, 10 August
Overcast. High 100°, low 74°.
Pressure30.00 inHg
Wind4.6 mph W
Humidity40%
Visibility6.2 mi
Dew point67°
Tue, 1197° / 72°0.02
97 °
Gaines Mill, Tuesday, 11 August
Light rain. High 97°, low 72°.
Pressure29.94 inHg
Wind4 mph NW
Humidity42%
Visibility6.2 mi
Dew point65°
Wed, 1292° / 72°0.11
92 °
Gaines Mill, Wednesday, 12 August
Light rain. High 92°, low 72°.
Pressure29.83 inHg
Wind10.1 mph W
Humidity56%
Visibility6.2 mi
Dew point67°
Thu, 1389° / 72°0.14
89 °
Gaines Mill, Thursday, 13 August
Light rain. High 89°, low 72°.
Pressure29.83 inHg
Wind6.1 mph N
Humidity43%
Visibility—
Dew point62°
Fri, 1469° / 60°0.07
69 °
Gaines Mill, Friday, 14 August
Light rain. High 69°, low 60°.
Pressure30.12 inHg
Wind5.8 mph N
Humidity93%
Visibility—
Dew point60°
Sat, 1583° / 58°0
83 °
Gaines Mill, Saturday, 15 August
Overcast. High 83°, low 58°.
Pressure30.18 inHg
Wind9.1 mph N
Humidity31%
Visibility—
Dew point47°
Sun, 1688° / 62°0
88 °
Gaines Mill, Sunday, 16 August
Overcast. High 88°, low 62°.
Pressure30.18 inHg
Wind9.7 mph S
Humidity32%
Visibility—
Dew point51°
Mon, 1779° / 65°0
79 °
Gaines Mill, Monday, 17 August
Overcast. High 79°, low 65°.
Pressure30.12 inHg
Wind9.6 mph SW
Humidity64%
Visibility—
Dew point61°
Tue, 1871° / 66°0.15
71 °
Gaines Mill, Tuesday, 18 August
Light rain. High 71°, low 66°.
Pressure30.03 inHg
Wind5.1 mph S
Humidity97%
Visibility—
Dew point67°
Wed, 1985° / 68°0.15
85 °
Gaines Mill, Wednesday, 19 August
Light rain. High 85°, low 68°.
Pressure29.91 inHg
Wind5.6 mph SE
Humidity64%
Visibility—
Dew point68°
Thu, 2089° / 70°0
89 °
Gaines Mill, Thursday, 20 August
Overcast. High 89°, low 70°.
Pressure29.71 inHg
Wind11.5 mph NW
Humidity44%
Visibility—
Dew point61°
Fri, 2183° / 65°0
83 °
Gaines Mill, Friday, 21 August
Clear. High 83°, low 65°.
Pressure29.91 inHg
Wind10.3 mph N
Humidity25%
Visibility—
Dew point41°
Sat, 2287° / 60°0
87 °
Gaines Mill, Saturday, 22 August
Mostly clear. High 87°, low 60°.
Pressure30.06 inHg
Wind6.4 mph SE
Humidity32%
Visibility—
Dew point51°
Sun, 2386° / 69°0.15
86 °
Gaines Mill, Sunday, 23 August
Light rain. High 86°, low 69°.
Pressure30.00 inHg
Wind10.2 mph SW
Humidity73%
Visibility—
Dew point70°
Mon, 2498° / 70°0
98 °
Gaines Mill, Monday, 24 August
Clear. High 98°, low 70°.
Pressure29.91 inHg
Wind8.6 mph SW
Humidity33%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2585° / 68°0.09
85 °
Gaines Mill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.09 in
Chance of precipitation20%
Record high99° (1968)
Record low59° (1986)
Wed, 2686° / 68°0.05
86 °
Gaines Mill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.05 in
Chance of precipitation22%
Record high97° (2016)
Record low58° (1977)
Thu, 2786° / 69°0.17
86 °
Gaines Mill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.17 in
Chance of precipitation30%
Record high96° (1987)
Record low61° (2025)
Fri, 2887° / 69°0.13
87 °
Gaines Mill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.13 in
Chance of precipitation35%
Record high96° (1987)
Record low58° (1986)
Sat, 2986° / 69°0.1
86 °
Gaines Mill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.1 in
Chance of precipitation35%
Record high98° (2006)
Record low52° (1986)
Sun, 3085° / 68°0.11
85 °
Gaines Mill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.11 in
Chance of precipitation25%
Record high97° (2010)
Record low52° (1986)
Mon, 3185° / 69°0.08
85 °
Gaines Mill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.08 in
Chance of precipitation27%
Record high95° (2010)
Record low54° (1986)
Tue, 0183° / 67°0.19
83 °
Gaines Mill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.19 in
Chance of precipitation40%
Record high97° (1993)
Record low56° (2017)
Wed, 0284° / 67°0.06
84 °
Gaines Mill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.06 in
Chance of precipitation25%
Record high97° (1980)
Record low56° (1967)
Thu, 0384° / 68°0.09
84 °
Gaines Mill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.09 in
Chance of precipitation32%
Record high95° (1993)
Record low52° (1967)
Fri, 0484° / 68°0.17
84 °
Gaines Mill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.17 in
Chance of precipitation33%
Record high96° (2019)
Record low56° (1967)
Sat, 0583° / 67°0.15
83 °
Gaines Mill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.15 in
Chance of precipitation37%
Record high95° (2023)
Record low54° (1997)
Sun, 0683° / 67°0.26
83 °
Gaines Mill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.26 in
Chance of precipitation32%
Record high98° (1983)
Record low57° (1982)
Mon, 0783° / 65°0.11
83 °
Gaines Mill, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.11 in
Chance of precipitation27%
Record high96° (1983)
Record low52° (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 Gaines Mill, VA 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 Gaines Mill, VA 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.