Monthly outlook for Gibson Mill, VA: average high 84.2°, average low 66.9°. That is 1.1° above the climate normal for August. Precipitation is expected on 10 days (about 3.6 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 23 August (92.6°), the coolest 21 August (55.7°).
84.2°/66.9°
Average high / low
+1.1°
Above normal
10 / 7
Wet days / normal
3.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84.1°
82.3°
+1°
18 August – 27 August
84.4°
82.3°
+1.2°
28 August – 6 September
at normal
81.1°
—
August records over 66 years
97°16 August 2007All-time high
49.6°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Ewing (8 mi).
Sun, 0984° / 70°0.14
84 °
Gibson Mill, Sunday, 9 August
Rain. High 84°, low 70°.
Pressure30.12 inHg
Wind3.2 mph S
Humidity75%
Visibility6.2 mi
Dew point71°
Mon, 1087° / 70°0.09
87 °
Gibson Mill, Monday, 10 August
Rain. High 87°, low 70°.
Pressure30.12 inHg
Wind3.5 mph SW
Humidity62%
Visibility6.2 mi
Dew point69°
Tue, 1190° / 68°0.22
90 °
Gibson Mill, Tuesday, 11 August
Rain. High 90°, low 68°.
Pressure30.09 inHg
Wind3.8 mph SW
Humidity79%
Visibility6.2 mi
Dew point73°
Wed, 1286° / 68°0.59
86 °
Gibson Mill, Wednesday, 12 August
Rain. High 86°, low 68°.
Pressure29.94 inHg
Wind9.5 mph W
Humidity60%
Visibility6.2 mi
Dew point69°
Thu, 1383° / 68°0.08
83 °
Gibson Mill, Thursday, 13 August
Light rain. High 83°, low 68°.
Pressure30.00 inHg
Wind4 mph SW
Humidity59%
Visibility—
Dew point65°
Fri, 1476° / 69°0.62
76 °
Gibson Mill, Friday, 14 August
Rain. High 76°, low 69°.
Pressure30.06 inHg
Wind7.6 mph SW
Humidity91%
Visibility—
Dew point72°
Sat, 1583° / 68°0.02
83 °
Gibson Mill, Saturday, 15 August
Light rain. High 83°, low 68°.
Pressure30.18 inHg
Wind5.4 mph NW
Humidity68%
Visibility—
Dew point66°
Sun, 1681° / 66°0.22
81 °
Gibson Mill, Sunday, 16 August
Rain. High 81°, low 66°.
Pressure30.15 inHg
Wind3.7 mph S
Humidity93%
Visibility—
Dew point69°
Mon, 1786° / 69°1.41
86 °
Gibson Mill, Monday, 17 August
Rain. High 86°, low 69°.
Pressure30.03 inHg
Wind4.7 mph W
Humidity66%
Visibility—
Dew point71°
Tue, 1883° / 69°0.02
83 °
Gibson Mill, Tuesday, 18 August
Light rain. High 83°, low 69°.
Pressure30.03 inHg
Wind3.4 mph SW
Humidity73%
Visibility—
Dew point70°
Wed, 1989° / 68°0.08
89 °
Gibson Mill, Wednesday, 19 August
Light rain. High 89°, low 68°.
Pressure29.91 inHg
Wind6.8 mph NW
Humidity57%
Visibility—
Dew point67°
Thu, 2079° / 62°0.01
79 °
Gibson Mill, Thursday, 20 August
Light rain. High 79°, low 62°.
Pressure29.91 inHg
Wind9.4 mph NW
Humidity57%
Visibility—
Dew point62°
Fri, 2180° / 56°0
80 °
Gibson Mill, Friday, 21 August
Partly cloudy. High 80°, low 56°.
Pressure30.00 inHg
Wind6.2 mph NW
Humidity46%
Visibility—
Dew point55°
Sat, 2283° / 63°0.02
83 °
Gibson Mill, Saturday, 22 August
Light rain. High 83°, low 63°.
Pressure30.03 inHg
Wind7.1 mph S
Humidity65%
Visibility—
Dew point64°
Sun, 2393° / 69°0
93 °
Gibson Mill, Sunday, 23 August
Mostly clear. High 93°, low 69°.
Pressure30.03 inHg
Wind8.4 mph W
Humidity45%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 66°0.13
82 °
Gibson Mill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.13 in
Chance of precipitation35%
Record high94° (2007)
Record low55° (1997)
Tue, 2582° / 65°0.08
82 °
Gibson Mill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation27%
Record high96° (2023)
Record low56° (2015)
Wed, 2682° / 66°0.12
82 °
Gibson Mill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.12 in
Chance of precipitation30%
Record high92° (1987)
Record low54° (2025)
Thu, 2782° / 66°0.15
82 °
Gibson Mill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation42%
Record high93° (2016)
Record low53° (2025)
Fri, 2882° / 66°0.1
82 °
Gibson Mill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.1 in
Chance of precipitation35%
Record high91° (2021)
Record low55° (1968)
Sat, 2982° / 66°0.07
82 °
Gibson Mill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.07 in
Chance of precipitation30%
Record high92° (2024)
Record low50° (1986)
Sun, 3082° / 65°0.13
82 °
Gibson Mill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.13 in
Chance of precipitation42%
Record high93° (2024)
Record low53° (1986)
Mon, 3181° / 65°0.19
81 °
Gibson Mill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.19 in
Chance of precipitation42%
Record high90° (2024)
Record low55° (1976)
Tue, 0181° / 65°0.17
81 °
Gibson Mill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.17 in
Chance of precipitation42%
Record high90° (1973)
Record low54° (1967)
Wed, 0281° / 65°0.11
81 °
Gibson Mill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.11 in
Chance of precipitation38%
Record high92° (2011)
Record low51° (1967)
Thu, 0381° / 65°0.12
81 °
Gibson Mill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation42%
Record high94° (2011)
Record low53° (2017)
Fri, 0480° / 64°0.11
80 °
Gibson Mill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation42%
Record high93° (2019)
Record low53° (1997)
Sat, 0580° / 64°0.19
80 °
Gibson Mill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.19 in
Chance of precipitation43%
Record high92° (1975)
Record low51° (1997)
Sun, 0680° / 64°0.11
80 °
Gibson Mill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation42%
Record high91° (1998)
Record low53° (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 Gibson 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 Gibson 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.