Monthly outlook for Mustoe, VA: average high 85.5°, average low 65.9°. That is 0.2° above the climate normal for August. Precipitation is expected on 7 days (about 3.0 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 10 August (99.1°), the coolest 15 August (54.6°).
85.5°/65.9°
Average high / low
+0.2°
Above normal
7 / 6
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
88°
85.9°
+1.2°
18 August – 27 August
81.3°
84.3°
-1.7°
28 August – 6 September
at normal
83.5°
—
August records over 66 years
102.9°20 August 1983All-time high
54.1°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Quantico (15 mi).
Sun, 0991° / 72°0.01
91 °
Mustoe, Sunday, 9 August
Light rain. High 91°, low 72°.
Pressure30.03 inHg
Wind3.8 mph NW
Humidity42%
Visibility6.2 mi
Dew point67°
Mon, 1099° / 73°0.06
99 °
Mustoe, Monday, 10 August
Light rain. High 99°, low 73°.
Pressure30.03 inHg
Wind4 mph N
Humidity35%
Visibility6.2 mi
Dew point65°
Tue, 1194° / 68°0.1
94 °
Mustoe, Tuesday, 11 August
Light rain. High 94°, low 68°.
Pressure29.97 inHg
Wind3.9 mph W
Humidity46%
Visibility6.2 mi
Dew point65°
Wed, 1291° / 70°0.01
91 °
Mustoe, Wednesday, 12 August
Light rain. High 91°, low 70°.
Pressure29.83 inHg
Wind2.4 mph NW
Humidity76%
Visibility6.2 mi
Dew point70°
Thu, 1394° / 72°0.04
94 °
Mustoe, Thursday, 13 August
Light rain. High 94°, low 72°.
Pressure29.80 inHg
Wind8.3 mph NW
Humidity35%
Visibility—
Dew point60°
Fri, 1471° / 59°0.7
71 °
Mustoe, Friday, 14 August
Rain. High 71°, low 59°.
Pressure30.03 inHg
Wind6.9 mph NE
Humidity96%
Visibility—
Dew point62°
Sat, 1578° / 55°0
78 °
Mustoe, Saturday, 15 August
Clear. High 78°, low 55°.
Pressure30.21 inHg
Wind7.3 mph N
Humidity37%
Visibility—
Dew point48°
Sun, 1683° / 56°0
83 °
Mustoe, Sunday, 16 August
Clear. High 83°, low 56°.
Pressure30.27 inHg
Wind4.7 mph NE
Humidity34%
Visibility—
Dew point49°
Mon, 1789° / 61°0
89 °
Mustoe, Monday, 17 August
Mostly clear. High 89°, low 61°.
Pressure30.12 inHg
Wind8.6 mph SW
Humidity39%
Visibility—
Dew point58°
Tue, 1873° / 69°0.83
73 °
Mustoe, Tuesday, 18 August
Heavy rain. High 73°, low 69°.
Pressure30.00 inHg
Wind9.2 mph S
Humidity99%
Visibility—
Dew point69°
Wed, 1988° / 69°0.07
88 °
Mustoe, Wednesday, 19 August
Light rain. High 88°, low 69°.
Pressure29.88 inHg
Wind8.3 mph N
Humidity49%
Visibility—
Dew point62°
Thu, 2090° / 65°0
90 °
Mustoe, Thursday, 20 August
Overcast. High 90°, low 65°.
Pressure29.94 inHg
Wind6 mph E
Humidity39%
Visibility—
Dew point59°
Fri, 2172° / 69°0.95
72 °
Mustoe, Friday, 21 August
Rain. High 72°, low 69°.
Pressure29.85 inHg
Wind9.4 mph SE
Humidity98%
Visibility—
Dew point70°
Sat, 2287° / 67°0
87 °
Mustoe, Saturday, 22 August
Mostly clear. High 87°, low 67°.
Pressure29.80 inHg
Wind8.5 mph NW
Humidity40%
Visibility—
Dew point58°
Sun, 2377° / 59°0
77 °
Mustoe, Sunday, 23 August
Overcast. High 77°, low 59°.
Pressure30.06 inHg
Wind11.8 mph N
Humidity29%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 69°0.07
84 °
Mustoe, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.07 in
Chance of precipitation17%
Record high99° (1995)
Record low59° (2024)
Tue, 2585° / 69°0.07
85 °
Mustoe, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.07 in
Chance of precipitation17%
Record high98° (1998)
Record low60° (2024)
Wed, 2685° / 69°0.04
85 °
Mustoe, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.04 in
Chance of precipitation13%
Record high95° (2006)
Record low59° (1977)
Thu, 2785° / 70°0.13
85 °
Mustoe, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low70°
Average precipitation0.13 in
Chance of precipitation32%
Record high98° (1987)
Record low59° (2025)
Fri, 2886° / 70°0.17
86 °
Mustoe, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.17 in
Chance of precipitation42%
Record high100° (2024)
Record low58° (2025)
Sat, 2984° / 70°0.13
84 °
Mustoe, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low70°
Average precipitation0.13 in
Chance of precipitation33%
Record high96° (2006)
Record low55° (1986)
Sun, 3085° / 69°0.06
85 °
Mustoe, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.06 in
Chance of precipitation23%
Record high96° (2010)
Record low54° (1986)
Mon, 3184° / 69°0.09
84 °
Mustoe, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.09 in
Chance of precipitation30%
Record high95° (1973)
Record low55° (2025)
Tue, 0182° / 68°0.15
82 °
Mustoe, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low68°
Average precipitation0.15 in
Chance of precipitation33%
Record high96° (1980)
Record low56° (1967)
Wed, 0283° / 68°0.08
83 °
Mustoe, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.08 in
Chance of precipitation35%
Record high97° (1980)
Record low56° (2023)
Thu, 0383° / 68°0.12
83 °
Mustoe, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.12 in
Chance of precipitation32%
Record high97° (2023)
Record low55° (2025)
Fri, 0483° / 68°0.11
83 °
Mustoe, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.11 in
Chance of precipitation38%
Record high99° (2023)
Record low55° (2024)
Sat, 0582° / 67°0.14
82 °
Mustoe, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.14 in
Chance of precipitation35%
Record high100° (2023)
Record low56° (1997)
Sun, 0682° / 67°0.22
82 °
Mustoe, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.22 in
Chance of precipitation37%
Record high99° (2023)
Record low58° (1962)
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 Mustoe, 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 Mustoe, 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.