Monthly outlook for Walker Mill, MD: average high 84.2°, average low 67.8°. That is 0.1° below the climate normal for August. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 10 August (93.1°), the coolest 15 August (58.9°).
84.2°/67.8°
Average high / low
−0.1°
Below normal
5 / 6
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.6°
85.2°
+0.8°
18 August – 27 August
80.2°
83.6°
-1.9°
28 August – 6 September
at normal
82.9°
—
August records over 66 years
100.9°15 August 1988All-time high
50.9°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Capitol Heights (1 mi).
Sun, 0991° / 72°0
91 °
Walker Mill, Sunday, 9 August
Partly cloudy. High 91°, low 72°.
Pressure30.03 inHg
Wind8.1 mph NW
Humidity45%
Visibility6.2 mi
Dew point66°
Mon, 1093° / 73°0.01
93 °
Walker Mill, Monday, 10 August
Light rain. High 93°, low 73°.
Pressure30.03 inHg
Wind7.9 mph NW
Humidity39%
Visibility6.2 mi
Dew point64°
Tue, 1192° / 71°0.05
92 °
Walker Mill, Tuesday, 11 August
Light rain. High 92°, low 71°.
Pressure29.97 inHg
Wind9.5 mph NW
Humidity48%
Visibility6.2 mi
Dew point64°
Wed, 1291° / 72°0
91 °
Walker Mill, Wednesday, 12 August
Light rain. High 91°, low 72°.
Pressure29.83 inHg
Wind5 mph NW
Humidity61%
Visibility6.2 mi
Dew point66°
Thu, 1390° / 73°0.04
90 °
Walker Mill, Thursday, 13 August
Light rain. High 90°, low 73°.
Pressure29.80 inHg
Wind11.4 mph NW
Humidity41%
Visibility—
Dew point61°
Fri, 1472° / 62°0.95
72 °
Walker Mill, Friday, 14 August
Heavy rain. High 72°, low 62°.
Pressure30.00 inHg
Wind7 mph NE
Humidity80%
Visibility—
Dew point59°
Sat, 1579° / 59°0
79 °
Walker Mill, Saturday, 15 August
Clear. High 79°, low 59°.
Pressure30.21 inHg
Wind7.6 mph NW
Humidity37%
Visibility—
Dew point47°
Sun, 1681° / 61°0
81 °
Walker Mill, Sunday, 16 August
Clear. High 81°, low 61°.
Pressure30.27 inHg
Wind5.9 mph NW
Humidity31%
Visibility—
Dew point45°
Mon, 1786° / 63°0
86 °
Walker Mill, Monday, 17 August
Mostly clear. High 86°, low 63°.
Pressure30.12 inHg
Wind8.5 mph SE
Humidity44%
Visibility—
Dew point59°
Tue, 1873° / 69°0.26
73 °
Walker Mill, Tuesday, 18 August
Rain. High 73°, low 69°.
Pressure29.97 inHg
Wind8 mph S
Humidity96%
Visibility—
Dew point69°
Wed, 1988° / 70°0.04
88 °
Walker Mill, Wednesday, 19 August
Light rain. High 88°, low 70°.
Pressure29.88 inHg
Wind8.3 mph NW
Humidity41%
Visibility—
Dew point58°
Thu, 2084° / 67°0
84 °
Walker Mill, Thursday, 20 August
Overcast. High 84°, low 67°.
Pressure29.97 inHg
Wind6.3 mph E
Humidity47%
Visibility—
Dew point58°
Fri, 2173° / 68°0.43
73 °
Walker Mill, Friday, 21 August
Light rain. High 73°, low 68°.
Pressure29.88 inHg
Wind7.8 mph S
Humidity94%
Visibility—
Dew point71°
Sat, 2287° / 68°0
87 °
Walker Mill, Saturday, 22 August
Mostly clear. High 87°, low 68°.
Pressure29.77 inHg
Wind9.4 mph NW
Humidity43%
Visibility—
Dew point59°
Sun, 2377° / 63°0
77 °
Walker Mill, Sunday, 23 August
Overcast. High 77°, low 63°.
Pressure30.06 inHg
Wind13.5 mph N
Humidity29%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 67°0.09
84 °
Walker Mill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.09 in
Chance of precipitation22%
Record high96° (1995)
Record low58° (2024)
Tue, 2584° / 67°0.07
84 °
Walker Mill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.07 in
Chance of precipitation23%
Record high97° (1968)
Record low58° (1986)
Wed, 2684° / 68°0.05
84 °
Walker Mill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.05 in
Chance of precipitation22%
Record high95° (1975)
Record low57° (1963)
Thu, 2785° / 68°0.13
85 °
Walker Mill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.13 in
Chance of precipitation40%
Record high96° (1987)
Record low59° (1969)
Fri, 2885° / 69°0.16
85 °
Walker Mill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.16 in
Chance of precipitation43%
Record high97° (1973)
Record low59° (1986)
Sat, 2984° / 68°0.13
84 °
Walker Mill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.13 in
Chance of precipitation30%
Record high95° (1973)
Record low51° (1986)
Sun, 3084° / 67°0.06
84 °
Walker Mill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.06 in
Chance of precipitation25%
Record high95° (1973)
Record low51° (1986)
Mon, 3183° / 68°0.07
83 °
Walker Mill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.07 in
Chance of precipitation25%
Record high96° (1973)
Record low55° (1986)
Tue, 0182° / 66°0.14
82 °
Walker Mill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.14 in
Chance of precipitation27%
Record high96° (1980)
Record low57° (1967)
Wed, 0282° / 66°0.11
82 °
Walker Mill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation40%
Record high96° (1980)
Record low55° (1967)
Thu, 0383° / 66°0.11
83 °
Walker Mill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.11 in
Chance of precipitation32%
Record high96° (2023)
Record low52° (1967)
Fri, 0482° / 67°0.09
82 °
Walker Mill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.09 in
Chance of precipitation33%
Record high97° (2023)
Record low55° (2024)
Sat, 0582° / 66°0.13
82 °
Walker Mill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.13 in
Chance of precipitation30%
Record high98° (2023)
Record low53° (1997)
Sun, 0681° / 66°0.23
81 °
Walker Mill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.23 in
Chance of precipitation30%
Record high97° (2023)
Record low55° (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 Walker Mill, 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 Walker Mill, 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.