Monthly outlook for Foster Fork, VA: average high 82.6°, average low 64.2°. That is 1.3° below the climate normal for August. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 10 August (92.3°), the coolest 15 August (55.1°).
82.6°/64.2°
Average high / low
−1.3°
Below normal
6 / 6
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
85°
85.6°
-0.3°
18 August – 27 August
78.6°
84°
-3°
28 August – 6 September
at normal
83.3°
—
August records over 66 years
100.9°20 August 1962All-time high
50.5°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Bull Run (13 mi).
Sun, 0989° / 70°0
89 °
Foster Fork, Sunday, 9 August
Partly cloudy. High 89°, low 70°.
Pressure30.03 inHg
Wind6.1 mph NW
Humidity46%
Visibility6.2 mi
Dew point66°
Mon, 1092° / 68°0.26
92 °
Foster Fork, Monday, 10 August
Rain. High 92°, low 68°.
Pressure30.03 inHg
Wind6.3 mph NW
Humidity41%
Visibility6.2 mi
Dew point65°
Tue, 1191° / 66°0.04
91 °
Foster Fork, Tuesday, 11 August
Light rain. High 91°, low 66°.
Pressure29.97 inHg
Wind5.7 mph NW
Humidity51%
Visibility6.2 mi
Dew point64°
Wed, 1288° / 68°0.02
88 °
Foster Fork, Wednesday, 12 August
Light rain. High 88°, low 68°.
Pressure29.83 inHg
Wind1.1 mph S
Humidity62%
Visibility6.2 mi
Dew point67°
Thu, 1389° / 69°0.07
89 °
Foster Fork, Thursday, 13 August
Light rain. High 89°, low 69°.
Pressure29.83 inHg
Wind9 mph N
Humidity39%
Visibility—
Dew point59°
Fri, 1468° / 60°1.08
68 °
Foster Fork, Friday, 14 August
Heavy rain. High 68°, low 60°.
Pressure30.03 inHg
Wind8.2 mph NE
Humidity87%
Visibility—
Dew point60°
Sat, 1577° / 55°0
77 °
Foster Fork, Saturday, 15 August
Clear. High 77°, low 55°.
Pressure30.21 inHg
Wind6.8 mph N
Humidity40%
Visibility—
Dew point47°
Sun, 1680° / 55°0
80 °
Foster Fork, Sunday, 16 August
Clear. High 80°, low 55°.
Pressure30.27 inHg
Wind4.3 mph NW
Humidity38%
Visibility—
Dew point49°
Mon, 1786° / 59°0
86 °
Foster Fork, Monday, 17 August
Partly cloudy. High 86°, low 59°.
Pressure30.12 inHg
Wind6.3 mph SE
Humidity47%
Visibility—
Dew point59°
Tue, 1872° / 67°0.44
72 °
Foster Fork, Tuesday, 18 August
Rain. High 72°, low 67°.
Pressure29.97 inHg
Wind5.4 mph S
Humidity98%
Visibility—
Dew point68°
Wed, 1984° / 67°0
84 °
Foster Fork, Wednesday, 19 August
Light rain. High 84°, low 67°.
Pressure29.88 inHg
Wind8.4 mph N
Humidity43%
Visibility—
Dew point58°
Thu, 2083° / 62°0
83 °
Foster Fork, Thursday, 20 August
Overcast. High 83°, low 62°.
Pressure29.97 inHg
Wind5.1 mph E
Humidity46%
Visibility—
Dew point58°
Fri, 2171° / 65°0.34
71 °
Foster Fork, Friday, 21 August
Light rain. High 71°, low 65°.
Pressure29.85 inHg
Wind7.8 mph SE
Humidity97%
Visibility—
Dew point70°
Sat, 2286° / 66°0
86 °
Foster Fork, Saturday, 22 August
Clear. High 86°, low 66°.
Pressure29.80 inHg
Wind8.5 mph NW
Humidity41%
Visibility—
Dew point56°
Sun, 2375° / 58°0
75 °
Foster Fork, Sunday, 23 August
Overcast. High 75°, low 58°.
Pressure30.06 inHg
Wind13 mph NW
Humidity30%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 66°0.09
84 °
Foster Fork, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.09 in
Chance of precipitation23%
Record high97° (1995)
Record low57° (1994)
Tue, 2585° / 67°0.07
85 °
Foster Fork, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.07 in
Chance of precipitation27%
Record high97° (2007)
Record low56° (1971)
Wed, 2685° / 67°0.04
85 °
Foster Fork, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.04 in
Chance of precipitation17%
Record high95° (1975)
Record low57° (1963)
Thu, 2785° / 68°0.13
85 °
Foster Fork, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.13 in
Chance of precipitation32%
Record high97° (1987)
Record low59° (2025)
Fri, 2885° / 68°0.16
85 °
Foster Fork, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.16 in
Chance of precipitation43%
Record high98° (2024)
Record low57° (2025)
Sat, 2984° / 68°0.12
84 °
Foster Fork, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.12 in
Chance of precipitation30%
Record high95° (1973)
Record low52° (1986)
Sun, 3085° / 67°0.06
85 °
Foster Fork, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.06 in
Chance of precipitation27%
Record high96° (2022)
Record low51° (1986)
Mon, 3184° / 67°0.09
84 °
Foster Fork, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high95° (1973)
Record low53° (1986)
Tue, 0182° / 66°0.13
82 °
Foster Fork, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.13 in
Chance of precipitation32%
Record high96° (2010)
Record low55° (1967)
Wed, 0283° / 65°0.08
83 °
Foster Fork, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.08 in
Chance of precipitation32%
Record high96° (1980)
Record low55° (1967)
Thu, 0383° / 66°0.1
83 °
Foster Fork, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.1 in
Chance of precipitation27%
Record high98° (2023)
Record low52° (1967)
Fri, 0483° / 66°0.1
83 °
Foster Fork, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.1 in
Chance of precipitation35%
Record high98° (2023)
Record low52° (2024)
Sat, 0582° / 65°0.15
82 °
Foster Fork, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.15 in
Chance of precipitation32%
Record high99° (2023)
Record low54° (1997)
Sun, 0682° / 65°0.26
82 °
Foster Fork, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.26 in
Chance of precipitation30%
Record high98° (2023)
Record low54° (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 Foster Fork, 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 Foster Fork, 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.