Monthly outlook for West Arlington, MD: average high 84.6°, average low 68.2°. That is 0.9° above the climate normal for August. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 22 August (91°), the coolest 15 August (61°).
84.6°/68.2°
Average high / low
+0.9°
Above normal
2 / 6
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.8°
83.7°
+0.1°
19 August – 28 August
85.8°
82.4°
+1.9°
29 August – 7 September
at normal
81.3°
—
August records over 66 years
98.6°15 August 1988All-time high
50.7°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Baltimore (5 mi).
Mon, 1089° / 73°0.02
89 °
West Arlington, Monday, 10 August
Light rain. High 89°, low 73°.
Pressure29.97 inHg
Wind6.1 mph SW
Humidity36%
Visibility6.2 mi
Dew point62°
Tue, 1191° / 71°0.04
91 °
West Arlington, Tuesday, 11 August
Light rain. High 91°, low 71°.
Pressure29.91 inHg
Wind6.7 mph NW
Humidity48%
Visibility6.2 mi
Dew point63°
Wed, 1287° / 72°0.04
87 °
West Arlington, Wednesday, 12 August
Light rain. High 87°, low 72°.
Pressure29.83 inHg
Wind6.1 mph NW
Humidity57%
Visibility6.2 mi
Dew point65°
Thu, 1388° / 74°0
88 °
West Arlington, Thursday, 13 August
Overcast. High 88°, low 74°.
Pressure29.85 inHg
Wind12 mph NW
Humidity47%
Visibility6.2 mi
Dew point62°
Fri, 1473° / 63°0.02
73 °
West Arlington, Friday, 14 August
Light rain. High 73°, low 63°.
Pressure30.09 inHg
Wind6.9 mph N
Humidity67%
Visibility—
Dew point55°
Sat, 1578° / 61°0
78 °
West Arlington, Saturday, 15 August
Overcast. High 78°, low 61°.
Pressure30.21 inHg
Wind10.4 mph N
Humidity32%
Visibility—
Dew point42°
Sun, 1675° / 62°0.01
75 °
West Arlington, Sunday, 16 August
Light rain. High 75°, low 62°.
Pressure30.18 inHg
Wind7.2 mph SE
Humidity45%
Visibility—
Dew point49°
Mon, 1782° / 68°0.01
82 °
West Arlington, Monday, 17 August
Light rain. High 82°, low 68°.
Pressure29.88 inHg
Wind9.8 mph S
Humidity48%
Visibility—
Dew point58°
Tue, 1885° / 66°0
85 °
West Arlington, Tuesday, 18 August
Mostly clear. High 85°, low 66°.
Pressure29.97 inHg
Wind6.6 mph SE
Humidity30%
Visibility—
Dew point48°
Wed, 1983° / 71°0.71
83 °
West Arlington, Wednesday, 19 August
Heavy rain. High 83°, low 71°.
Pressure29.83 inHg
Wind12.4 mph S
Humidity55%
Visibility—
Dew point64°
Thu, 2086° / 68°0
86 °
West Arlington, Thursday, 20 August
Partly cloudy. High 86°, low 68°.
Pressure29.74 inHg
Wind9.3 mph N
Humidity39%
Visibility—
Dew point56°
Fri, 2183° / 65°0
83 °
West Arlington, Friday, 21 August
Partly cloudy. High 83°, low 65°.
Pressure29.88 inHg
Wind7.1 mph N
Humidity34%
Visibility—
Dew point49°
Sat, 2291° / 68°0
91 °
West Arlington, Saturday, 22 August
Clear. High 91°, low 68°.
Pressure29.88 inHg
Wind11.3 mph S
Humidity35%
Visibility—
Dew point55°
Sun, 2388° / 73°0.01
88 °
West Arlington, Sunday, 23 August
Light rain. High 88°, low 73°.
Pressure29.91 inHg
Wind13.3 mph W
Humidity32%
Visibility—
Dew point53°
Mon, 2483° / 65°0
83 °
West Arlington, Monday, 24 August
Clear. High 83°, low 65°.
Pressure30.15 inHg
Wind7.3 mph N
Humidity25%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 67°0.06
83 °
West Arlington, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.06 in
Chance of precipitation22%
Record high95° (1968)
Record low57° (1987)
Wed, 2683° / 67°0.07
83 °
West Arlington, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.07 in
Chance of precipitation18%
Record high93° (1975)
Record low57° (1963)
Thu, 2783° / 68°0.17
83 °
West Arlington, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.17 in
Chance of precipitation38%
Record high93° (1987)
Record low59° (2025)
Fri, 2883° / 69°0.16
83 °
West Arlington, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low69°
Average precipitation0.16 in
Chance of precipitation48%
Record high96° (1973)
Record low58° (1986)
Sat, 2983° / 68°0.12
83 °
West Arlington, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.12 in
Chance of precipitation32%
Record high93° (1973)
Record low51° (1986)
Sun, 3083° / 67°0.07
83 °
West Arlington, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.07 in
Chance of precipitation25%
Record high93° (2022)
Record low51° (1986)
Mon, 3182° / 67°0.07
82 °
West Arlington, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.07 in
Chance of precipitation27%
Record high93° (1973)
Record low54° (1976)
Tue, 0181° / 66°0.16
81 °
West Arlington, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.16 in
Chance of precipitation28%
Record high94° (2010)
Record low56° (1967)
Wed, 0281° / 65°0.12
81 °
West Arlington, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation40%
Record high94° (1980)
Record low55° (2009)
Thu, 0382° / 66°0.11
82 °
West Arlington, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation25%
Record high97° (2023)
Record low52° (1967)
Fri, 0482° / 66°0.09
82 °
West Arlington, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.09 in
Chance of precipitation30%
Record high100° (2023)
Record low55° (2024)
Sat, 0580° / 66°0.13
80 °
West Arlington, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.13 in
Chance of precipitation28%
Record high99° (2023)
Record low54° (1997)
Sun, 0680° / 65°0.24
80 °
West Arlington, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.24 in
Chance of precipitation35%
Record high99° (2023)
Record low54° (2000)
Mon, 0780° / 64°0.08
80 °
West Arlington, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation27%
Record high92° (1998)
Record low51° (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 West Arlington, MD 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 West Arlington, MD 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.