Monthly outlook for Shannon Hill, VA: average high 88.3°, average low 66.1°. That is 1.8° above the climate normal for August. Precipitation is expected on 4 days (about 2.4 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 13 August (94.3°), the coolest 16 August (57.2°).
88.3°/66.1°
Average high / low
+1.8°
Above normal
4 / 5
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
87.5°
85.6°
+1.1°
19 August – 28 August
89.7°
84.5°
+2.9°
29 August – 7 September
at normal
83.1°
—
August records over 66 years
101.3°8 August 2007All-time high
50.2°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Mineral (11 mi).
Mon, 1093° / 72°0
93 °
Shannon Hill, Monday, 10 August
Clear. High 93°, low 72°.
Pressure30.00 inHg
Wind4.1 mph SW
Humidity36%
Visibility6.2 mi
Dew point64°
Tue, 1193° / 70°0.16
93 °
Shannon Hill, Tuesday, 11 August
Rain. High 93°, low 70°.
Pressure29.94 inHg
Wind9.4 mph W
Humidity42%
Visibility6.2 mi
Dew point64°
Wed, 1288° / 70°0.44
88 °
Shannon Hill, Wednesday, 12 August
Rain. High 88°, low 70°.
Pressure29.88 inHg
Wind5.5 mph W
Humidity65%
Visibility6.2 mi
Dew point65°
Thu, 1394° / 66°0.01
94 °
Shannon Hill, Thursday, 13 August
Light rain. High 94°, low 66°.
Pressure29.88 inHg
Wind7.3 mph NE
Humidity38%
Visibility—
Dew point58°
Fri, 1472° / 60°0.01
72 °
Shannon Hill, Friday, 14 August
Light rain. High 72°, low 60°.
Pressure30.09 inHg
Wind6.9 mph NE
Humidity83%
Visibility—
Dew point59°
Sat, 1582° / 58°0
82 °
Shannon Hill, Saturday, 15 August
Overcast. High 82°, low 58°.
Pressure30.21 inHg
Wind7.7 mph NE
Humidity30%
Visibility—
Dew point44°
Sun, 1685° / 57°0
85 °
Shannon Hill, Sunday, 16 August
Partly cloudy. High 85°, low 57°.
Pressure30.12 inHg
Wind9.4 mph S
Humidity41%
Visibility—
Dew point56°
Mon, 1787° / 69°0.22
87 °
Shannon Hill, Monday, 17 August
Rain. High 87°, low 69°.
Pressure29.88 inHg
Wind9.6 mph S
Humidity60%
Visibility—
Dew point68°
Tue, 1888° / 63°0
88 °
Shannon Hill, Tuesday, 18 August
Mostly clear. High 88°, low 63°.
Pressure29.94 inHg
Wind5.4 mph SE
Humidity36%
Visibility—
Dew point55°
Wed, 1991° / 66°1.53
91 °
Shannon Hill, Wednesday, 19 August
Heavy rain. High 91°, low 66°.
Pressure29.83 inHg
Wind8.4 mph S
Humidity86%
Visibility—
Dew point75°
Thu, 2091° / 68°0.03
91 °
Shannon Hill, Thursday, 20 August
Light rain. High 91°, low 68°.
Pressure29.77 inHg
Wind10.2 mph NE
Humidity33%
Visibility—
Dew point55°
Fri, 2185° / 64°0
85 °
Shannon Hill, Friday, 21 August
Overcast. High 85°, low 64°.
Pressure29.88 inHg
Wind8.3 mph N
Humidity43%
Visibility—
Dew point57°
Sat, 2294° / 63°0
94 °
Shannon Hill, Saturday, 22 August
Clear. High 94°, low 63°.
Pressure29.91 inHg
Wind10.3 mph SW
Humidity34%
Visibility—
Dew point56°
Sun, 2394° / 72°0
94 °
Shannon Hill, Sunday, 23 August
Light rain. High 94°, low 72°.
Pressure29.91 inHg
Wind9.7 mph NE
Humidity31%
Visibility—
Dew point56°
Mon, 2484° / 65°0
84 °
Shannon Hill, Monday, 24 August
Clear. High 84°, low 65°.
Pressure30.15 inHg
Wind10 mph N
Humidity31%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2585° / 67°0.07
85 °
Shannon Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.07 in
Chance of precipitation22%
Record high99° (2007)
Record low58° (1971)
Wed, 2685° / 67°0.04
85 °
Shannon Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.04 in
Chance of precipitation18%
Record high96° (2006)
Record low57° (1977)
Thu, 2785° / 68°0.12
85 °
Shannon Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.12 in
Chance of precipitation33%
Record high96° (1987)
Record low59° (2025)
Fri, 2886° / 68°0.15
86 °
Shannon Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.15 in
Chance of precipitation33%
Record high97° (2024)
Record low56° (2025)
Sat, 2985° / 67°0.12
85 °
Shannon Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.12 in
Chance of precipitation33%
Record high96° (2006)
Record low51° (1986)
Sun, 3085° / 67°0.07
85 °
Shannon Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.07 in
Chance of precipitation23%
Record high95° (2022)
Record low50° (1986)
Mon, 3184° / 67°0.07
84 °
Shannon Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.07 in
Chance of precipitation25%
Record high95° (1991)
Record low52° (1986)
Tue, 0182° / 66°0.15
82 °
Shannon Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation35%
Record high95° (1980)
Record low54° (1967)
Wed, 0283° / 66°0.05
83 °
Shannon Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.05 in
Chance of precipitation28%
Record high95° (1980)
Record low54° (2017)
Thu, 0383° / 66°0.08
83 °
Shannon Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.08 in
Chance of precipitation23%
Record high94° (2010)
Record low53° (1967)
Fri, 0482° / 66°0.13
82 °
Shannon Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.13 in
Chance of precipitation32%
Record high97° (2023)
Record low55° (1997)
Sat, 0582° / 65°0.13
82 °
Shannon Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.13 in
Chance of precipitation30%
Record high97° (2023)
Record low53° (1997)
Sun, 0682° / 65°0.28
82 °
Shannon Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.28 in
Chance of precipitation25%
Record high97° (2023)
Record low55° (1972)
Mon, 0782° / 64°0.08
82 °
Shannon Hill, Monday, 7 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.08 in
Chance of precipitation30%
Record high98° (2023)
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 Shannon 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 Shannon 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.