Monthly outlook for Marion, MD: average high 83.6°, average low 73.5°. That is 0.6° above the climate normal for August. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 6 days and 2.6 inches. The warmest day looks like 10 August (90.3°), the coolest 16 August (63.8°).
83.6°/73.5°
Average high / low
+0.6°
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
82.1°
83.1°
-0.5°
19 August – 28 August
86.2°
81.9°
+2.4°
29 August – 7 September
at normal
80.9°
—
August records over 66 years
95.4°20 August 1983All-time high
52.7°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Dames Quarter (11 mi).
Mon, 1090° / 77°0.01
90 °
Marion, Monday, 10 August
Light rain. High 90°, low 77°.
Pressure30.03 inHg
Wind8.9 mph SW
Humidity68%
Visibility6.2 mi
Dew point71°
Tue, 1185° / 77°0
85 °
Marion, Tuesday, 11 August
Mostly clear. High 85°, low 77°.
Pressure29.91 inHg
Wind17 mph NW
Humidity59%
Visibility6.2 mi
Dew point67°
Wed, 1284° / 77°0.02
84 °
Marion, Wednesday, 12 August
Light rain. High 84°, low 77°.
Pressure29.83 inHg
Wind10.6 mph W
Humidity67%
Visibility6.2 mi
Dew point69°
Thu, 1386° / 77°0.24
86 °
Marion, Thursday, 13 August
Rain. High 86°, low 77°.
Pressure29.83 inHg
Wind24.8 mph SW
Humidity59%
Visibility—
Dew point67°
Fri, 1476° / 68°0
76 °
Marion, Friday, 14 August
Overcast. High 76°, low 68°.
Pressure30.09 inHg
Wind10.9 mph NW
Humidity46%
Visibility—
Dew point53°
Sat, 1578° / 66°0
78 °
Marion, Saturday, 15 August
Overcast. High 78°, low 66°.
Pressure30.15 inHg
Wind14 mph NW
Humidity44%
Visibility—
Dew point52°
Sun, 1678° / 64°0
78 °
Marion, Sunday, 16 August
Partly cloudy. High 78°, low 64°.
Pressure30.15 inHg
Wind10 mph N
Humidity38%
Visibility—
Dew point49°
Mon, 1774° / 72°0.15
74 °
Marion, Monday, 17 August
Light rain. High 74°, low 72°.
Pressure30.00 inHg
Wind13.2 mph SW
Humidity79%
Visibility—
Dew point66°
Tue, 1879° / 70°0.2
79 °
Marion, Tuesday, 18 August
Light rain. High 79°, low 70°.
Pressure30.00 inHg
Wind9 mph E
Humidity71%
Visibility—
Dew point67°
Wed, 1985° / 70°0
85 °
Marion, Wednesday, 19 August
Clear. High 85°, low 70°.
Pressure30.06 inHg
Wind9.8 mph N
Humidity52%
Visibility—
Dew point64°
Thu, 2083° / 70°0
83 °
Marion, Thursday, 20 August
Clear. High 83°, low 70°.
Pressure30.03 inHg
Wind11.7 mph S
Humidity55%
Visibility—
Dew point64°
Fri, 2187° / 76°0.08
87 °
Marion, Friday, 21 August
Light rain. High 87°, low 76°.
Pressure29.91 inHg
Wind18.5 mph S
Humidity64%
Visibility—
Dew point71°
Sat, 2285° / 79°0.11
85 °
Marion, Saturday, 22 August
Light rain. High 85°, low 79°.
Pressure29.88 inHg
Wind17.6 mph S
Humidity74%
Visibility—
Dew point74°
Sun, 2388° / 78°0
88 °
Marion, Sunday, 23 August
Clear. High 88°, low 78°.
Pressure29.94 inHg
Wind11 mph S
Humidity67%
Visibility—
Dew point74°
Mon, 2490° / 79°0.02
90 °
Marion, Monday, 24 August
Light rain. High 90°, low 79°.
Pressure29.97 inHg
Wind25 mph NW
Humidity69%
Visibility—
Dew point75°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 70°0.06
82 °
Marion, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.06 in
Chance of precipitation20%
Record high92° (1968)
Record low60° (1971)
Wed, 2682° / 70°0.05
82 °
Marion, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.05 in
Chance of precipitation20%
Record high91° (1975)
Record low60° (1977)
Thu, 2783° / 72°0.13
83 °
Marion, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.13 in
Chance of precipitation30%
Record high93° (1987)
Record low63° (1963)
Fri, 2883° / 72°0.16
83 °
Marion, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low72°
Average precipitation0.16 in
Chance of precipitation40%
Record high90° (1973)
Record low61° (1969)
Sat, 2982° / 71°0.11
82 °
Marion, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.11 in
Chance of precipitation30%
Record high91° (1973)
Record low56° (1982)
Sun, 3082° / 70°0.07
82 °
Marion, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (1973)
Record low53° (1986)
Mon, 3182° / 70°0.08
82 °
Marion, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.08 in
Chance of precipitation23%
Record high91° (1973)
Record low56° (1986)
Tue, 0180° / 69°0.24
80 °
Marion, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.24 in
Chance of precipitation35%
Record high91° (2010)
Record low59° (1986)
Wed, 0280° / 69°0.09
80 °
Marion, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.09 in
Chance of precipitation37%
Record high91° (1980)
Record low59° (1967)
Thu, 0381° / 70°0.1
81 °
Marion, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low70°
Average precipitation0.1 in
Chance of precipitation38%
Record high90° (1993)
Record low54° (1967)
Fri, 0481° / 70°0.14
81 °
Marion, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low70°
Average precipitation0.14 in
Chance of precipitation25%
Record high89° (2008)
Record low58° (1997)
Sat, 0580° / 69°0.09
80 °
Marion, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.09 in
Chance of precipitation32%
Record high92° (2023)
Record low59° (1994)
Sun, 0680° / 69°0.19
80 °
Marion, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.19 in
Chance of precipitation38%
Record high92° (1983)
Record low60° (1962)
Mon, 0780° / 68°0.07
80 °
Marion, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.07 in
Chance of precipitation27%
Record high93° (2023)
Record low57° (1965)
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 Marion, 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 Marion, 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.