Monthly outlook for Formosa, VA: average high 92.1°, average low 68.8°. That is 3.4° above the climate normal for August. Precipitation is expected on 7 days (about 1.4 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 24 August (105.7°), the coolest 16 August (60°).
92.1°/68.8°
Average high / low
+3.4°
Above normal
7 / 6
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
87.9°
86.4°
+0.8°
19 August – 28 August
99°
85.5°
+7.5°
29 August – 7 September
at normal
84.2°
—
August records over 66 years
102.4°8 August 2007All-time high
50.5°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Drakes Branch (8 mi).
Mon, 1092° / 72°0
92 °
Formosa, Monday, 10 August
Overcast. High 92°, low 72°.
Pressure30.06 inHg
Wind4.5 mph W
Humidity84%
Visibility6.2 mi
Dew point70°
Tue, 1196° / 71°0.17
96 °
Formosa, Tuesday, 11 August
Rain. High 96°, low 71°.
Pressure29.94 inHg
Wind7.2 mph W
Humidity41%
Visibility6.2 mi
Dew point64°
Wed, 1294° / 70°0.49
94 °
Formosa, Wednesday, 12 August
Rain. High 94°, low 70°.
Pressure29.94 inHg
Wind6.3 mph N
Humidity86%
Visibility6.2 mi
Dew point70°
Thu, 1391° / 69°0.06
91 °
Formosa, Thursday, 13 August
Light rain. High 91°, low 69°.
Pressure29.85 inHg
Wind10.6 mph W
Humidity46%
Visibility—
Dew point64°
Fri, 1472° / 63°0.37
72 °
Formosa, Friday, 14 August
Rain. High 72°, low 63°.
Pressure30.12 inHg
Wind8.6 mph N
Humidity84%
Visibility—
Dew point59°
Sat, 1585° / 61°0
85 °
Formosa, Saturday, 15 August
Overcast. High 85°, low 61°.
Pressure30.18 inHg
Wind6.4 mph NE
Humidity40%
Visibility—
Dew point54°
Sun, 1683° / 60°0
83 °
Formosa, Sunday, 16 August
Partly cloudy. High 83°, low 60°.
Pressure30.12 inHg
Wind6 mph SW
Humidity43%
Visibility—
Dew point56°
Mon, 1782° / 68°0.13
82 °
Formosa, Monday, 17 August
Light rain. High 82°, low 68°.
Pressure29.94 inHg
Wind6.5 mph SE
Humidity75%
Visibility—
Dew point69°
Tue, 1890° / 68°0.01
90 °
Formosa, Tuesday, 18 August
Light rain. High 90°, low 68°.
Pressure30.00 inHg
Wind7.1 mph E
Humidity46%
Visibility—
Dew point60°
Wed, 1991° / 67°0
91 °
Formosa, Wednesday, 19 August
Clear. High 91°, low 67°.
Pressure30.03 inHg
Wind6.7 mph E
Humidity35%
Visibility—
Dew point57°
Thu, 2094° / 68°0
94 °
Formosa, Thursday, 20 August
Clear. High 94°, low 68°.
Pressure30.00 inHg
Wind7.8 mph S
Humidity37%
Visibility—
Dew point61°
Fri, 2199° / 72°0.07
99 °
Formosa, Friday, 21 August
Light rain. High 99°, low 72°.
Pressure29.88 inHg
Wind9.5 mph SW
Humidity34%
Visibility—
Dew point63°
Sat, 22101° / 73°0.02
101 °
Formosa, Saturday, 22 August
Light rain. High 101°, low 73°.
Pressure29.85 inHg
Wind8.4 mph NE
Humidity39%
Visibility—
Dew point68°
Sun, 23103° / 77°0
103 °
Formosa, Sunday, 23 August
Partly cloudy. High 103°, low 77°.
Pressure29.91 inHg
Wind4.1 mph SE
Humidity32%
Visibility—
Dew point65°
Mon, 24106° / 69°0.03
106 °
Formosa, Monday, 24 August
Light rain. High 106°, low 69°.
Pressure29.94 inHg
Wind10.4 mph N
Humidity29%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2585° / 68°0.09
85 °
Formosa, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.09 in
Chance of precipitation23%
Record high98° (2007)
Record low59° (2024)
Wed, 2685° / 68°0.05
85 °
Formosa, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.05 in
Chance of precipitation23%
Record high98° (2016)
Record low59° (1984)
Thu, 2785° / 69°0.14
85 °
Formosa, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.14 in
Chance of precipitation32%
Record high97° (2021)
Record low58° (2025)
Fri, 2886° / 69°0.09
86 °
Formosa, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.09 in
Chance of precipitation32%
Record high97° (2006)
Record low57° (2025)
Sat, 2986° / 69°0.07
86 °
Formosa, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.07 in
Chance of precipitation35%
Record high97° (1998)
Record low51° (1986)
Sun, 3086° / 68°0.09
86 °
Formosa, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.09 in
Chance of precipitation25%
Record high96° (2021)
Record low51° (1986)
Mon, 3185° / 68°0.1
85 °
Formosa, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.1 in
Chance of precipitation33%
Record high96° (1991)
Record low55° (1986)
Tue, 0184° / 67°0.16
84 °
Formosa, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.16 in
Chance of precipitation38%
Record high95° (1993)
Record low54° (1967)
Wed, 0284° / 66°0.07
84 °
Formosa, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.07 in
Chance of precipitation37%
Record high94° (2014)
Record low55° (1967)
Thu, 0385° / 67°0.1
85 °
Formosa, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.1 in
Chance of precipitation30%
Record high94° (2010)
Record low51° (1967)
Fri, 0484° / 67°0.15
84 °
Formosa, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation33%
Record high95° (2019)
Record low54° (1967)
Sat, 0583° / 67°0.22
83 °
Formosa, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.22 in
Chance of precipitation37%
Record high96° (2023)
Record low54° (1997)
Sun, 0683° / 66°0.3
83 °
Formosa, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.3 in
Chance of precipitation38%
Record high97° (2023)
Record low56° (1972)
Mon, 0783° / 65°0.11
83 °
Formosa, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.11 in
Chance of precipitation22%
Record high96° (1990)
Record low52° (2017)
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 Formosa, 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 Formosa, 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.