Monthly outlook for Lewis Park, VA: average high 89.7°, average low 68°. That is 3° above the climate normal for August. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 24 August (102.1°), the coolest 16 August (57.8°).
89.7°/68°
Average high / low
+3°
Above normal
5 / 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
85.6°
85°
+0.4°
19 August – 28 August
96.5°
83.7°
+7.1°
29 August – 7 September
at normal
82.4°
—
August records over 66 years
101.3°17 August 1988All-time high
50.4°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Fair Oaks (3 mi).
Mon, 1093° / 72°0
93 °
Lewis Park, Monday, 10 August
Mostly clear. High 93°, low 72°.
Pressure30.00 inHg
Wind3.3 mph W
Humidity37%
Visibility6.2 mi
Dew point62°
Tue, 1193° / 70°0.06
93 °
Lewis Park, Tuesday, 11 August
Rain. High 93°, low 70°.
Pressure29.94 inHg
Wind8.6 mph NW
Humidity50%
Visibility6.2 mi
Dew point66°
Wed, 1290° / 68°0.56
90 °
Lewis Park, Wednesday, 12 August
Heavy rain. High 90°, low 68°.
Pressure29.83 inHg
Wind6.5 mph W
Humidity58%
Visibility6.2 mi
Dew point65°
Thu, 1386° / 69°0.01
86 °
Lewis Park, Thursday, 13 August
Light rain. High 86°, low 69°.
Pressure29.85 inHg
Wind12.6 mph NW
Humidity39%
Visibility—
Dew point56°
Fri, 1479° / 63°0
79 °
Lewis Park, Friday, 14 August
Overcast. High 79°, low 63°.
Pressure30.06 inHg
Wind7.3 mph NW
Humidity36%
Visibility—
Dew point48°
Sat, 1580° / 59°0
80 °
Lewis Park, Saturday, 15 August
Overcast. High 80°, low 59°.
Pressure30.15 inHg
Wind9.3 mph NW
Humidity34%
Visibility—
Dew point46°
Sun, 1677° / 58°0
77 °
Lewis Park, Sunday, 16 August
Overcast. High 77°, low 58°.
Pressure30.15 inHg
Wind5.6 mph N
Humidity36%
Visibility—
Dew point46°
Mon, 1782° / 67°0.06
82 °
Lewis Park, Monday, 17 August
Light rain. High 82°, low 67°.
Pressure29.97 inHg
Wind4.6 mph SE
Humidity54%
Visibility—
Dew point62°
Tue, 1886° / 65°0
86 °
Lewis Park, Tuesday, 18 August
Mostly clear. High 86°, low 65°.
Pressure30.00 inHg
Wind5.4 mph NW
Humidity38%
Visibility—
Dew point55°
Wed, 1989° / 66°0
89 °
Lewis Park, Wednesday, 19 August
Clear. High 89°, low 66°.
Pressure30.06 inHg
Wind6.5 mph SE
Humidity35%
Visibility—
Dew point55°
Thu, 2092° / 67°0
92 °
Lewis Park, Thursday, 20 August
Partly cloudy. High 92°, low 67°.
Pressure30.00 inHg
Wind8.5 mph SE
Humidity36%
Visibility—
Dew point57°
Fri, 21100° / 70°0.5
100 °
Lewis Park, Friday, 21 August
Rain. High 100°, low 70°.
Pressure29.83 inHg
Wind7.7 mph SW
Humidity35%
Visibility—
Dew point63°
Sat, 2297° / 75°0.02
97 °
Lewis Park, Saturday, 22 August
Light rain. High 97°, low 75°.
Pressure29.88 inHg
Wind8.8 mph N
Humidity43%
Visibility—
Dew point67°
Sun, 2399° / 74°0.03
99 °
Lewis Park, Sunday, 23 August
Light rain. High 99°, low 74°.
Pressure29.91 inHg
Wind7.3 mph SE
Humidity38%
Visibility—
Dew point65°
Mon, 24102° / 73°0.17
102 °
Lewis Park, Monday, 24 August
Rain. High 102°, low 73°.
Pressure29.94 inHg
Wind9.1 mph NE
Humidity36%
Visibility—
Dew point66°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 67°0.08
84 °
Lewis Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.08 in
Chance of precipitation23%
Record high96° (1968)
Record low57° (1971)
Wed, 2684° / 67°0.05
84 °
Lewis Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.05 in
Chance of precipitation15%
Record high95° (1975)
Record low56° (1963)
Thu, 2785° / 68°0.14
85 °
Lewis Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.14 in
Chance of precipitation35%
Record high96° (1987)
Record low58° (1969)
Fri, 2885° / 68°0.17
85 °
Lewis Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.17 in
Chance of precipitation42%
Record high97° (2024)
Record low57° (1986)
Sat, 2984° / 67°0.12
84 °
Lewis Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.12 in
Chance of precipitation33%
Record high96° (1973)
Record low51° (1986)
Sun, 3084° / 66°0.06
84 °
Lewis Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.06 in
Chance of precipitation25%
Record high95° (2022)
Record low50° (1986)
Mon, 3183° / 67°0.08
83 °
Lewis Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.08 in
Chance of precipitation28%
Record high95° (1973)
Record low53° (1986)
Tue, 0182° / 65°0.13
82 °
Lewis Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.13 in
Chance of precipitation32%
Record high96° (1973)
Record low55° (1967)
Wed, 0282° / 65°0.09
82 °
Lewis Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation37%
Record high96° (1980)
Record low54° (1967)
Thu, 0383° / 65°0.11
83 °
Lewis Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.11 in
Chance of precipitation35%
Record high97° (2023)
Record low51° (1967)
Fri, 0482° / 66°0.11
82 °
Lewis Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation37%
Record high97° (2023)
Record low54° (2024)
Sat, 0582° / 65°0.15
82 °
Lewis Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.15 in
Chance of precipitation30%
Record high98° (2023)
Record low53° (1997)
Sun, 0681° / 65°0.24
81 °
Lewis Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.24 in
Chance of precipitation32%
Record high97° (2023)
Record low53° (2000)
Mon, 0781° / 64°0.12
81 °
Lewis Park, Monday, 7 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.12 in
Chance of precipitation30%
Record high93° (2016)
Record low53° (1976)
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 Lewis Park, 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 Lewis Park, 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.