Monthly outlook for Knob Hill, VA: average high 87.4°, average low 71.8°. That is 2.3° above the climate normal for August. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 10 August (97.9°), the coolest 15 August (66.5°).
87.4°/71.8°
Average high / low
+2.3°
Above normal
3 / 7
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
88.8°
83.7°
+2.8°
18 August – 27 August
85.2°
82.5°
+1.5°
28 August – 6 September
at normal
81.8°
—
August records over 66 years
97.7°1 August 1999All-time high
57°22 August 2024All-time low
Climate normals and records are computed from the nearest reference point — Virginia Beach (11 mi).
Sun, 0995° / 77°0.03
95 °
Knob Hill, Sunday, 9 August
Light rain. High 95°, low 77°.
Pressure30.06 inHg
Wind7.8 mph W
Humidity48%
Visibility6.2 mi
Dew point68°
Mon, 1098° / 77°0.07
98 °
Knob Hill, Monday, 10 August
Rain. High 98°, low 77°.
Pressure30.03 inHg
Wind9.5 mph SW
Humidity45%
Visibility6.2 mi
Dew point69°
Tue, 1195° / 76°0.32
95 °
Knob Hill, Tuesday, 11 August
Heavy rain. High 95°, low 76°.
Pressure29.94 inHg
Wind5.2 mph N
Humidity45%
Visibility6.2 mi
Dew point66°
Wed, 1294° / 76°0.02
94 °
Knob Hill, Wednesday, 12 August
Light rain. High 94°, low 76°.
Pressure29.83 inHg
Wind11.2 mph NW
Humidity50%
Visibility6.2 mi
Dew point68°
Thu, 1390° / 78°0
90 °
Knob Hill, Thursday, 13 August
Overcast. High 90°, low 78°.
Pressure29.83 inHg
Wind11.3 mph N
Humidity47%
Visibility—
Dew point66°
Fri, 1478° / 67°0.23
78 °
Knob Hill, Friday, 14 August
Rain. High 78°, low 67°.
Pressure30.09 inHg
Wind10.2 mph N
Humidity85%
Visibility—
Dew point65°
Sat, 1579° / 66°0
79 °
Knob Hill, Saturday, 15 August
Overcast. High 79°, low 66°.
Pressure30.18 inHg
Wind13.1 mph N
Humidity43%
Visibility—
Dew point53°
Sun, 1683° / 67°0
83 °
Knob Hill, Sunday, 16 August
Partly cloudy. High 83°, low 67°.
Pressure30.18 inHg
Wind10.1 mph E
Humidity39%
Visibility—
Dew point54°
Mon, 1783° / 67°0
83 °
Knob Hill, Monday, 17 August
Partly cloudy. High 83°, low 67°.
Pressure30.12 inHg
Wind11.6 mph SE
Humidity47%
Visibility—
Dew point59°
Tue, 1878° / 72°0.04
78 °
Knob Hill, Tuesday, 18 August
Light rain. High 78°, low 72°.
Pressure30.03 inHg
Wind8.4 mph SE
Humidity66%
Visibility—
Dew point65°
Wed, 1982° / 71°0.04
82 °
Knob Hill, Wednesday, 19 August
Light rain. High 82°, low 71°.
Pressure29.91 inHg
Wind9.2 mph S
Humidity59%
Visibility—
Dew point65°
Thu, 2094° / 72°0
94 °
Knob Hill, Thursday, 20 August
Overcast. High 94°, low 72°.
Pressure29.68 inHg
Wind12.4 mph W
Humidity40%
Visibility—
Dew point64°
Fri, 2181° / 69°0
81 °
Knob Hill, Friday, 21 August
Overcast. High 81°, low 69°.
Pressure29.91 inHg
Wind11.5 mph N
Humidity33%
Visibility—
Dew point48°
Sat, 2284° / 67°0
84 °
Knob Hill, Saturday, 22 August
Clear. High 84°, low 67°.
Pressure30.06 inHg
Wind11.5 mph E
Humidity33%
Visibility—
Dew point50°
Sun, 2392° / 70°0.01
92 °
Knob Hill, Sunday, 23 August
Light rain. High 92°, low 70°.
Pressure30.06 inHg
Wind16.2 mph S
Humidity44%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 71°0.07
82 °
Knob Hill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.07 in
Chance of precipitation28%
Record high96° (2002)
Record low61° (2024)
Tue, 2582° / 71°0.04
82 °
Knob Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.04 in
Chance of precipitation23%
Record high94° (1968)
Record low63° (2024)
Wed, 2682° / 71°0.04
82 °
Knob Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.04 in
Chance of precipitation27%
Record high94° (1975)
Record low61° (2013)
Thu, 2783° / 72°0.22
83 °
Knob Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.22 in
Chance of precipitation28%
Record high95° (2020)
Record low63° (1982)
Fri, 2884° / 72°0.15
84 °
Knob Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low72°
Average precipitation0.15 in
Chance of precipitation40%
Record high93° (2024)
Record low60° (2025)
Sat, 2983° / 72°0.07
83 °
Knob Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.07 in
Chance of precipitation25%
Record high94° (2006)
Record low61° (2025)
Sun, 3083° / 71°0.12
83 °
Knob Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low71°
Average precipitation0.12 in
Chance of precipitation30%
Record high92° (2018)
Record low60° (1965)
Mon, 3182° / 72°0.13
82 °
Knob Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low72°
Average precipitation0.13 in
Chance of precipitation32%
Record high91° (1991)
Record low62° (1965)
Tue, 0181° / 71°0.15
81 °
Knob Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low71°
Average precipitation0.15 in
Chance of precipitation47%
Record high92° (1993)
Record low64° (2017)
Wed, 0281° / 71°0.12
81 °
Knob Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low71°
Average precipitation0.12 in
Chance of precipitation33%
Record high92° (2014)
Record low62° (2023)
Thu, 0382° / 71°0.18
82 °
Knob Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.18 in
Chance of precipitation35%
Record high92° (2020)
Record low60° (1967)
Fri, 0482° / 71°0.11
82 °
Knob Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.11 in
Chance of precipitation33%
Record high92° (1985)
Record low60° (1967)
Sat, 0581° / 70°0.14
81 °
Knob Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low70°
Average precipitation0.14 in
Chance of precipitation37%
Record high92° (1983)
Record low62° (1997)
Sun, 0681° / 70°0.17
81 °
Knob Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low70°
Average precipitation0.17 in
Chance of precipitation37%
Record high94° (1983)
Record low61° (1997)
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 Knob Hill, 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 Knob Hill, 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.