Monthly outlook for Blue Mount, MD: average high 80.7°, average low 64.5°. That is 0.6° below the climate normal for August. Precipitation is expected on 7 days (about 1.3 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 9 August (88.7°), the coolest 15 August (54.8°).
80.7°/64.5°
Average high / low
−0.6°
Below normal
7 / 6
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
82.8°
82.6°
+0.1°
18 August – 27 August
77.1°
81°
-2.2°
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 (14 mi).
Sun, 0989° / 70°0
89 °
Blue Mount, Sunday, 9 August
Partly cloudy. High 89°, low 70°.
Pressure30.03 inHg
Wind8.1 mph NW
Humidity52%
Visibility6.2 mi
Dew point66°
Mon, 1088° / 71°0.27
88 °
Blue Mount, Monday, 10 August
Heavy rain. High 88°, low 71°.
Pressure30.03 inHg
Wind10.2 mph NW
Humidity57%
Visibility6.2 mi
Dew point68°
Tue, 1188° / 68°0.18
88 °
Blue Mount, Tuesday, 11 August
Rain. High 88°, low 68°.
Pressure29.94 inHg
Wind8.3 mph W
Humidity59%
Visibility6.2 mi
Dew point66°
Wed, 1281° / 68°0.21
81 °
Blue Mount, Wednesday, 12 August
Rain. High 81°, low 68°.
Pressure29.83 inHg
Wind8.7 mph W
Humidity74%
Visibility6.2 mi
Dew point68°
Thu, 1386° / 68°0
86 °
Blue Mount, Thursday, 13 August
Partly cloudy. High 86°, low 68°.
Pressure29.80 inHg
Wind12.5 mph NW
Humidity46%
Visibility—
Dew point61°
Fri, 1477° / 61°0.04
77 °
Blue Mount, Friday, 14 August
Light rain. High 77°, low 61°.
Pressure29.97 inHg
Wind8.2 mph N
Humidity46%
Visibility—
Dew point52°
Sat, 1575° / 55°0
75 °
Blue Mount, Saturday, 15 August
Clear. High 75°, low 55°.
Pressure30.21 inHg
Wind9.1 mph N
Humidity41%
Visibility—
Dew point47°
Sun, 1676° / 56°0
76 °
Blue Mount, Sunday, 16 August
Clear. High 76°, low 56°.
Pressure30.30 inHg
Wind6.6 mph N
Humidity40%
Visibility—
Dew point47°
Mon, 1782° / 60°0
82 °
Blue Mount, Monday, 17 August
Mostly clear. High 82°, low 60°.
Pressure30.12 inHg
Wind9.1 mph SE
Humidity49%
Visibility—
Dew point59°
Tue, 1874° / 69°0.2
74 °
Blue Mount, Tuesday, 18 August
Light rain. High 74°, low 69°.
Pressure29.97 inHg
Wind8.5 mph SW
Humidity94%
Visibility—
Dew point68°
Wed, 1983° / 66°0.01
83 °
Blue Mount, Wednesday, 19 August
Light rain. High 83°, low 66°.
Pressure29.88 inHg
Wind10.5 mph N
Humidity47%
Visibility—
Dew point58°
Thu, 2076° / 61°0
76 °
Blue Mount, Thursday, 20 August
Overcast. High 76°, low 61°.
Pressure30.00 inHg
Wind6.2 mph N
Humidity49%
Visibility—
Dew point52°
Fri, 2173° / 63°0.31
73 °
Blue Mount, Friday, 21 August
Rain. High 73°, low 63°.
Pressure29.88 inHg
Wind10.2 mph S
Humidity99%
Visibility—
Dew point69°
Sat, 2284° / 68°0
84 °
Blue Mount, Saturday, 22 August
Partly cloudy. High 84°, low 68°.
Pressure29.77 inHg
Wind9.4 mph NW
Humidity48%
Visibility—
Dew point59°
Sun, 2373° / 58°0
73 °
Blue Mount, Sunday, 23 August
Clear. High 73°, low 58°.
Pressure30.06 inHg
Wind16.1 mph NW
Humidity34%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.06
81 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 °
Blue Mount, 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 Blue Mount, 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 Blue Mount, 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.