Monthly outlook for Hillandale, MD: average high 90.2°, average low 70.6°. That is 3.6° above the climate normal for August. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 24 August (102°), the coolest 16 August (61.6°).
90.2°/70.6°
Average high / low
+3.6°
Above normal
6 / 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
86°
84.5°
+0.8°
19 August – 28 August
97.3°
83.1°
+7.9°
29 August – 7 September
at normal
82°
—
August records over 66 years
100.2°17 August 1988All-time high
50°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Burnt Mills (1 mi).
Mon, 1092° / 73°0
92 °
Hillandale, Monday, 10 August
Partly cloudy. High 92°, low 73°.
Pressure30.00 inHg
Wind3.7 mph W
Humidity33%
Visibility6.2 mi
Dew point60°
Tue, 1193° / 72°0.06
93 °
Hillandale, Tuesday, 11 August
Light rain. High 93°, low 72°.
Pressure29.91 inHg
Wind8.9 mph NW
Humidity46%
Visibility6.2 mi
Dew point64°
Wed, 1291° / 73°0.09
91 °
Hillandale, Wednesday, 12 August
Light rain. High 91°, low 73°.
Pressure29.80 inHg
Wind9.2 mph W
Humidity51%
Visibility6.2 mi
Dew point63°
Thu, 1387° / 72°0.01
87 °
Hillandale, Thursday, 13 August
Light rain. High 87°, low 72°.
Pressure29.83 inHg
Wind13 mph NW
Humidity36%
Visibility—
Dew point54°
Fri, 1481° / 65°0
81 °
Hillandale, Friday, 14 August
Overcast. High 81°, low 65°.
Pressure30.06 inHg
Wind7.8 mph W
Humidity33%
Visibility—
Dew point46°
Sat, 1580° / 63°0
80 °
Hillandale, Saturday, 15 August
Overcast. High 80°, low 63°.
Pressure30.15 inHg
Wind10.3 mph NW
Humidity27%
Visibility—
Dew point41°
Sun, 1680° / 62°0
80 °
Hillandale, Sunday, 16 August
Overcast. High 80°, low 62°.
Pressure30.12 inHg
Wind6 mph NW
Humidity26%
Visibility—
Dew point40°
Mon, 1780° / 68°0.09
80 °
Hillandale, Monday, 17 August
Light rain. High 80°, low 68°.
Pressure29.97 inHg
Wind5.3 mph E
Humidity54%
Visibility—
Dew point61°
Tue, 1886° / 66°0
86 °
Hillandale, Tuesday, 18 August
Light rain. High 86°, low 66°.
Pressure30.00 inHg
Wind6.1 mph SE
Humidity36%
Visibility—
Dew point54°
Wed, 1989° / 69°0
89 °
Hillandale, Wednesday, 19 August
Clear. High 89°, low 69°.
Pressure30.06 inHg
Wind7.5 mph SE
Humidity32%
Visibility—
Dew point53°
Thu, 2093° / 70°0
93 °
Hillandale, Thursday, 20 August
Partly cloudy. High 93°, low 70°.
Pressure30.00 inHg
Wind8 mph SE
Humidity33%
Visibility—
Dew point56°
Fri, 21101° / 74°0.06
101 °
Hillandale, Friday, 21 August
Light rain. High 101°, low 74°.
Pressure29.83 inHg
Wind8 mph S
Humidity34%
Visibility—
Dew point62°
Sat, 2298° / 78°0.02
98 °
Hillandale, Saturday, 22 August
Light rain. High 98°, low 78°.
Pressure29.88 inHg
Wind7.7 mph N
Humidity39%
Visibility—
Dew point66°
Sun, 23101° / 77°0.05
101 °
Hillandale, Sunday, 23 August
Light rain. High 101°, low 77°.
Pressure29.91 inHg
Wind7.3 mph SE
Humidity32%
Visibility—
Dew point62°
Mon, 24102° / 74°0.46
102 °
Hillandale, Monday, 24 August
Rain. High 102°, low 74°.
Pressure29.94 inHg
Wind6.2 mph SE
Humidity36%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 66°0.07
84 °
Hillandale, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.07 in
Chance of precipitation23%
Record high96° (1968)
Record low57° (1971)
Wed, 2684° / 67°0.06
84 °
Hillandale, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.06 in
Chance of precipitation23%
Record high95° (1975)
Record low57° (1963)
Thu, 2784° / 68°0.14
84 °
Hillandale, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.14 in
Chance of precipitation38%
Record high95° (1987)
Record low58° (2025)
Fri, 2884° / 68°0.17
84 °
Hillandale, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.17 in
Chance of precipitation45%
Record high97° (1973)
Record low58° (1969)
Sat, 2983° / 67°0.12
83 °
Hillandale, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.12 in
Chance of precipitation30%
Record high96° (1973)
Record low51° (1986)
Sun, 3083° / 66°0.06
83 °
Hillandale, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.06 in
Chance of precipitation25%
Record high95° (1973)
Record low50° (1986)
Mon, 3183° / 67°0.07
83 °
Hillandale, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.07 in
Chance of precipitation25%
Record high96° (1973)
Record low53° (1986)
Tue, 0182° / 65°0.14
82 °
Hillandale, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.14 in
Chance of precipitation27%
Record high95° (1973)
Record low56° (1967)
Wed, 0282° / 65°0.12
82 °
Hillandale, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.12 in
Chance of precipitation40%
Record high96° (1980)
Record low54° (1967)
Thu, 0382° / 65°0.11
82 °
Hillandale, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation32%
Record high96° (2023)
Record low51° (1967)
Fri, 0482° / 66°0.09
82 °
Hillandale, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.09 in
Chance of precipitation33%
Record high97° (2023)
Record low54° (1997)
Sat, 0581° / 65°0.13
81 °
Hillandale, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation30%
Record high99° (2023)
Record low53° (1997)
Sun, 0681° / 65°0.24
81 °
Hillandale, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.24 in
Chance of precipitation30%
Record high98° (2023)
Record low54° (2000)
Mon, 0781° / 64°0.07
81 °
Hillandale, Monday, 7 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation25%
Record high93° (1998)
Record low51° (1988)
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 Hillandale, 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 Hillandale, 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.