Monthly outlook for Big Pines, MD: average high 83.1°, average low 66.8°. That is 0.3° below the climate normal for August. Precipitation is expected on 7 days (about 0.8 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 10 August (92.5°), the coolest 22 August (58.7°).
83.1°/66.8°
Average high / low
−0.3°
Below normal
7 / 6
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84.7°
84.4°
+0.2°
18 August – 27 August
80.5°
82.8°
-1.3°
28 August – 6 September
at normal
82.1°
—
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 (4 mi).
Sun, 0988° / 73°0
88 °
Big Pines, Sunday, 9 August
Mostly clear. High 88°, low 73°.
Pressure30.03 inHg
Wind8.4 mph NW
Humidity48%
Visibility6.2 mi
Dew point66°
Mon, 1092° / 73°0.09
92 °
Big Pines, Monday, 10 August
Rain. High 92°, low 73°.
Pressure30.00 inHg
Wind6.7 mph NW
Humidity44%
Visibility6.2 mi
Dew point64°
Tue, 1189° / 68°0.18
89 °
Big Pines, Tuesday, 11 August
Rain. High 89°, low 68°.
Pressure29.97 inHg
Wind7.9 mph NW
Humidity50%
Visibility6.2 mi
Dew point65°
Wed, 1291° / 71°0.1
91 °
Big Pines, Wednesday, 12 August
Light rain. High 91°, low 71°.
Pressure29.77 inHg
Wind5.3 mph W
Humidity61%
Visibility6.2 mi
Dew point66°
Thu, 1383° / 69°0.06
83 °
Big Pines, Thursday, 13 August
Light rain. High 83°, low 69°.
Pressure29.85 inHg
Wind12.5 mph NW
Humidity34%
Visibility—
Dew point51°
Fri, 1472° / 61°0
72 °
Big Pines, Friday, 14 August
Overcast. High 72°, low 61°.
Pressure30.09 inHg
Wind6.7 mph NW
Humidity47%
Visibility—
Dew point48°
Sat, 1582° / 60°0
82 °
Big Pines, Saturday, 15 August
Clear. High 82°, low 60°.
Pressure30.15 inHg
Wind8.4 mph N
Humidity31%
Visibility—
Dew point45°
Sun, 1685° / 62°0
85 °
Big Pines, Sunday, 16 August
Mostly clear. High 85°, low 62°.
Pressure30.18 inHg
Wind7.4 mph SE
Humidity32%
Visibility—
Dew point49°
Mon, 1776° / 68°0.04
76 °
Big Pines, Monday, 17 August
Light rain. High 76°, low 68°.
Pressure30.09 inHg
Wind14.2 mph S
Humidity66%
Visibility—
Dew point61°
Tue, 1875° / 66°0.08
75 °
Big Pines, Tuesday, 18 August
Light rain. High 75°, low 66°.
Pressure30.03 inHg
Wind5.5 mph S
Humidity74%
Visibility—
Dew point65°
Wed, 1982° / 69°0.02
82 °
Big Pines, Wednesday, 19 August
Light rain. High 82°, low 69°.
Pressure29.88 inHg
Wind9.3 mph S
Humidity58%
Visibility—
Dew point64°
Thu, 2081° / 68°0.13
81 °
Big Pines, Thursday, 20 August
Light rain. High 81°, low 68°.
Pressure29.74 inHg
Wind15.5 mph NW
Humidity39%
Visibility—
Dew point52°
Fri, 2181° / 61°0
81 °
Big Pines, Friday, 21 August
Clear. High 81°, low 61°.
Pressure29.91 inHg
Wind10.7 mph NW
Humidity31%
Visibility—
Dew point44°
Sat, 2283° / 59°0
83 °
Big Pines, Saturday, 22 August
Mostly clear. High 83°, low 59°.
Pressure30.06 inHg
Wind6.4 mph SE
Humidity31%
Visibility—
Dew point46°
Sun, 2381° / 69°0.09
81 °
Big Pines, Sunday, 23 August
Light rain. High 81°, low 69°.
Pressure29.94 inHg
Wind12 mph SW
Humidity74%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 65°0.07
83 °
Big Pines, Monday, 24 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high94° (1995)
Record low54° (1994)
Tue, 2583° / 65°0.05
83 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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 °
Big Pines, 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)
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 Big Pines, 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 Big Pines, 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.