Monthly outlook for Marble Hill, MD: average high 82.4°, average low 66.4°. That is 0.3° above the climate normal for August. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 10 August (90.3°), the coolest 15 August (57.5°).
82.4°/66.4°
Average high / low
+0.3°
Above normal
7 / 6
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84.4°
82.6°
+1°
18 August – 27 August
79°
81°
-1.1°
28 August – 6 September
at normal
80.2°
—
August records over 66 years
97.2°15 August 1988All-time high
48°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Reisterstown (9 mi).
Sun, 0990° / 71°0
90 °
Marble Hill, Sunday, 9 August
Mostly clear. High 90°, low 71°.
Pressure30.03 inHg
Wind7.9 mph NW
Humidity49%
Visibility6.2 mi
Dew point66°
Mon, 1090° / 72°0.24
90 °
Marble Hill, Monday, 10 August
Heavy rain. High 90°, low 72°.
Pressure30.03 inHg
Wind9.4 mph NW
Humidity52%
Visibility6.2 mi
Dew point67°
Tue, 1188° / 70°0.16
88 °
Marble Hill, Tuesday, 11 August
Rain. High 88°, low 70°.
Pressure29.94 inHg
Wind8.1 mph W
Humidity55%
Visibility6.2 mi
Dew point65°
Wed, 1284° / 69°0.19
84 °
Marble Hill, Wednesday, 12 August
Light rain. High 84°, low 69°.
Pressure29.83 inHg
Wind8.3 mph W
Humidity71%
Visibility6.2 mi
Dew point68°
Thu, 1388° / 70°0
88 °
Marble Hill, Thursday, 13 August
Light rain. High 88°, low 70°.
Pressure29.80 inHg
Wind11.7 mph W
Humidity44%
Visibility—
Dew point61°
Fri, 1478° / 62°0.04
78 °
Marble Hill, Friday, 14 August
Light rain. High 78°, low 62°.
Pressure29.97 inHg
Wind8.2 mph N
Humidity46%
Visibility—
Dew point52°
Sat, 1577° / 57°0
77 °
Marble Hill, Saturday, 15 August
Clear. High 77°, low 57°.
Pressure30.21 inHg
Wind8.7 mph N
Humidity39%
Visibility—
Dew point47°
Sun, 1678° / 59°0
78 °
Marble Hill, Sunday, 16 August
Clear. High 78°, low 59°.
Pressure30.30 inHg
Wind6.2 mph N
Humidity36%
Visibility—
Dew point46°
Mon, 1784° / 63°0
84 °
Marble Hill, Monday, 17 August
Mostly clear. High 84°, low 63°.
Pressure30.12 inHg
Wind8.5 mph S
Humidity47%
Visibility—
Dew point59°
Tue, 1875° / 71°0.21
75 °
Marble Hill, Tuesday, 18 August
Rain. High 75°, low 71°.
Pressure29.97 inHg
Wind8.8 mph SW
Humidity92%
Visibility—
Dew point69°
Wed, 1984° / 68°0.01
84 °
Marble Hill, Wednesday, 19 August
Light rain. High 84°, low 68°.
Pressure29.88 inHg
Wind9.5 mph N
Humidity44%
Visibility—
Dew point58°
Thu, 2079° / 64°0
79 °
Marble Hill, Thursday, 20 August
Overcast. High 79°, low 64°.
Pressure30.00 inHg
Wind6.1 mph E
Humidity48%
Visibility—
Dew point53°
Fri, 2174° / 66°0.31
74 °
Marble Hill, Friday, 21 August
Rain. High 74°, low 66°.
Pressure29.88 inHg
Wind10.4 mph S
Humidity98%
Visibility—
Dew point70°
Sat, 2286° / 69°0
86 °
Marble Hill, Saturday, 22 August
Partly cloudy. High 86°, low 69°.
Pressure29.77 inHg
Wind8.4 mph NW
Humidity45%
Visibility—
Dew point59°
Sun, 2375° / 60°0
75 °
Marble Hill, Sunday, 23 August
Clear. High 75°, low 60°.
Pressure30.06 inHg
Wind15.6 mph NW
Humidity32%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.06
81 °
Marble Hill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.06 in
Chance of precipitation20%
Record high92° (1998)
Record low54° (1971)
Tue, 2582° / 65°0.06
82 °
Marble Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation20%
Record high94° (1968)
Record low55° (1987)
Wed, 2682° / 65°0.06
82 °
Marble Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation25%
Record high93° (1975)
Record low55° (1963)
Thu, 2782° / 66°0.15
82 °
Marble Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation37%
Record high91° (2020)
Record low55° (1969)
Fri, 2882° / 66°0.17
82 °
Marble Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.17 in
Chance of precipitation45%
Record high95° (1973)
Record low55° (1968)
Sat, 2981° / 66°0.1
81 °
Marble Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.1 in
Chance of precipitation30%
Record high94° (1973)
Record low49° (1982)
Sun, 3082° / 65°0.07
82 °
Marble Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation25%
Record high93° (1973)
Record low48° (1986)
Mon, 3181° / 65°0.07
81 °
Marble Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high94° (1973)
Record low52° (1976)
Tue, 0179° / 64°0.13
79 °
Marble Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (1973)
Record low52° (1967)
Wed, 0280° / 63°0.12
80 °
Marble Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation40%
Record high94° (1980)
Record low53° (1967)
Thu, 0380° / 64°0.11
80 °
Marble Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high93° (2023)
Record low49° (1967)
Fri, 0480° / 64°0.11
80 °
Marble Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high96° (2023)
Record low52° (1997)
Sat, 0579° / 63°0.14
79 °
Marble Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.14 in
Chance of precipitation30%
Record high95° (2023)
Record low52° (1997)
Sun, 0679° / 63°0.25
79 °
Marble Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.25 in
Chance of precipitation32%
Record high95° (2023)
Record low51° (2000)
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 Marble Hill, 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 Marble Hill, 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.