Monthly outlook for The Willows of Potomac, MD: average high 89.1°, average low 69.9°. That is 3.1° above the climate normal for August. Precipitation is expected on 8 days (about 1.3 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 16 August (102.7°), the coolest 15 August (64.1°).
89.1°/69.9°
Average high / low
+3.1°
Above normal
8 / 6
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
88.3°
84.2°
+2.3°
19 August – 28 August
90.4°
82.9°
+4.2°
29 August – 7 September
at normal
81.7°
—
August records over 66 years
99.7°17 August 1988All-time high
49.1°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Gaithersburg (3 mi).
Mon, 1093° / 73°0.02
93 °
The Willows of Potomac, Monday, 10 August
Light rain. High 93°, low 73°.
Pressure29.97 inHg
Wind5.1 mph W
Humidity39%
Visibility6.2 mi
Dew point63°
Tue, 1192° / 69°0.23
92 °
The Willows of Potomac, Tuesday, 11 August
Rain. High 92°, low 69°.
Pressure29.94 inHg
Wind10.4 mph NW
Humidity52%
Visibility6.2 mi
Dew point65°
Wed, 1288° / 71°0.07
88 °
The Willows of Potomac, Wednesday, 12 August
Light rain. High 88°, low 71°.
Pressure29.80 inHg
Wind6.6 mph NW
Humidity54%
Visibility6.2 mi
Dew point65°
Thu, 1390° / 69°0
90 °
The Willows of Potomac, Thursday, 13 August
Clear. High 90°, low 69°.
Pressure29.94 inHg
Wind9.4 mph NW
Humidity42%
Visibility6.2 mi
Dew point59°
Fri, 1471° / 67°0.02
71 °
The Willows of Potomac, Friday, 14 August
Light rain. High 71°, low 67°.
Pressure30.09 inHg
Wind4.6 mph NW
Humidity75%
Visibility—
Dew point62°
Sat, 1579° / 64°0
79 °
The Willows of Potomac, Saturday, 15 August
Overcast. High 79°, low 64°.
Pressure30.18 inHg
Wind4.6 mph S
Humidity61%
Visibility—
Dew point63°
Sun, 16103° / 70°0.13
103 °
The Willows of Potomac, Sunday, 16 August
Light rain. High 103°, low 70°.
Pressure29.85 inHg
Wind12.3 mph S
Humidity42%
Visibility—
Dew point66°
Mon, 1785° / 70°0
85 °
The Willows of Potomac, Monday, 17 August
Clear. High 85°, low 70°.
Pressure29.97 inHg
Wind10.9 mph N
Humidity36%
Visibility—
Dew point53°
Tue, 1891° / 68°0.02
91 °
The Willows of Potomac, Tuesday, 18 August
Light rain. High 91°, low 68°.
Pressure30.03 inHg
Wind12.6 mph S
Humidity37%
Visibility—
Dew point57°
Wed, 1996° / 71°0.11
96 °
The Willows of Potomac, Wednesday, 19 August
Light rain. High 96°, low 71°.
Pressure29.91 inHg
Wind11.7 mph NW
Humidity33%
Visibility—
Dew point59°
Thu, 2092° / 68°0
92 °
The Willows of Potomac, Thursday, 20 August
Mostly clear. High 92°, low 68°.
Pressure29.97 inHg
Wind6.2 mph N
Humidity34%
Visibility—
Dew point55°
Fri, 2192° / 72°0.11
92 °
The Willows of Potomac, Friday, 21 August
Light rain. High 92°, low 72°.
Pressure29.80 inHg
Wind9.6 mph SW
Humidity48%
Visibility—
Dew point66°
Sat, 2285° / 71°0.28
85 °
The Willows of Potomac, Saturday, 22 August
Rain. High 85°, low 71°.
Pressure29.88 inHg
Wind7.7 mph NE
Humidity57%
Visibility—
Dew point67°
Sun, 2384° / 72°0.27
84 °
The Willows of Potomac, Sunday, 23 August
Light rain. High 84°, low 72°.
Pressure30.00 inHg
Wind5.7 mph E
Humidity79%
Visibility—
Dew point72°
Mon, 2493° / 71°0.04
93 °
The Willows of Potomac, Monday, 24 August
Light rain. High 93°, low 71°.
Pressure29.97 inHg
Wind6.8 mph W
Humidity39%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 65°0.05
83 °
The Willows of Potomac, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.05 in
Chance of precipitation18%
Record high95° (1968)
Record low55° (1971)
Wed, 2684° / 66°0.06
84 °
The Willows of Potomac, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.06 in
Chance of precipitation28%
Record high94° (1975)
Record low56° (1963)
Thu, 2784° / 67°0.13
84 °
The Willows of Potomac, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.13 in
Chance of precipitation38%
Record high95° (1987)
Record low57° (1969)
Fri, 2884° / 67°0.16
84 °
The Willows of Potomac, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.16 in
Chance of precipitation45%
Record high96° (1973)
Record low56° (1969)
Sat, 2983° / 67°0.1
83 °
The Willows of Potomac, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.1 in
Chance of precipitation33%
Record high95° (1973)
Record low50° (1986)
Sun, 3083° / 65°0.06
83 °
The Willows of Potomac, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.06 in
Chance of precipitation25%
Record high94° (1973)
Record low49° (1986)
Mon, 3182° / 66°0.08
82 °
The Willows of Potomac, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.08 in
Chance of precipitation25%
Record high96° (1973)
Record low53° (1976)
Tue, 0181° / 65°0.11
81 °
The Willows of Potomac, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.11 in
Chance of precipitation28%
Record high96° (1973)
Record low55° (1967)
Wed, 0282° / 64°0.11
82 °
The Willows of Potomac, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation38%
Record high95° (1980)
Record low53° (1967)
Thu, 0382° / 65°0.11
82 °
The Willows of Potomac, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation25%
Record high96° (2023)
Record low50° (1967)
Fri, 0482° / 65°0.1
82 °
The Willows of Potomac, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.1 in
Chance of precipitation32%
Record high97° (2023)
Record low53° (1997)
Sat, 0581° / 64°0.13
81 °
The Willows of Potomac, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.13 in
Chance of precipitation28%
Record high98° (2023)
Record low52° (1997)
Sun, 0680° / 64°0.26
80 °
The Willows of Potomac, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.26 in
Chance of precipitation35%
Record high97° (2023)
Record low52° (2000)
Mon, 0781° / 63°0.09
81 °
The Willows of Potomac, Monday, 7 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.09 in
Chance of precipitation27%
Record high92° (2016)
Record low50° (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 The Willows of Potomac, 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 The Willows of Potomac, 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.