Monthly outlook for Harwood Park, MD: average high 90°, average low 71.8°. That is 3.7° above the climate normal for August. Precipitation is expected on 8 days (about 1.0 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 16 August (103.7°), the coolest 15 August (67.2°).
90°/71.8°
Average high / low
+3.7°
Above normal
8 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.5°
84°
+3.1°
19 August – 28 August
90.7°
82.7°
+4.4°
29 August – 7 September
at normal
81.6°
—
August records over 66 years
100°17 August 1988All-time high
51.6°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Columbia (7 mi).
Mon, 1093° / 74°0.02
93 °
Harwood Park, Monday, 10 August
Light rain. High 93°, low 74°.
Pressure29.97 inHg
Wind4.8 mph SW
Humidity31%
Visibility6.2 mi
Dew point59°
Tue, 1194° / 70°0.06
94 °
Harwood Park, Tuesday, 11 August
Light rain. High 94°, low 70°.
Pressure29.91 inHg
Wind8.4 mph NW
Humidity47%
Visibility6.2 mi
Dew point64°
Wed, 1288° / 73°0.05
88 °
Harwood Park, Wednesday, 12 August
Light rain. High 88°, low 73°.
Pressure29.80 inHg
Wind8.4 mph W
Humidity49%
Visibility6.2 mi
Dew point64°
Thu, 1390° / 72°0
90 °
Harwood Park, Thursday, 13 August
Clear. High 90°, low 72°.
Pressure29.91 inHg
Wind10.1 mph NW
Humidity35%
Visibility6.2 mi
Dew point56°
Fri, 1474° / 69°0.02
74 °
Harwood Park, Friday, 14 August
Light rain. High 74°, low 69°.
Pressure30.09 inHg
Wind4.9 mph E
Humidity68%
Visibility—
Dew point61°
Sat, 1582° / 67°0
82 °
Harwood Park, Saturday, 15 August
Light rain. High 82°, low 67°.
Pressure30.15 inHg
Wind6.4 mph S
Humidity52%
Visibility—
Dew point61°
Sun, 16104° / 71°0.1
104 °
Harwood Park, Sunday, 16 August
Light rain. High 104°, low 71°.
Pressure29.85 inHg
Wind11.8 mph SW
Humidity46%
Visibility—
Dew point67°
Mon, 1787° / 71°0
87 °
Harwood Park, Monday, 17 August
Mostly clear. High 87°, low 71°.
Pressure29.97 inHg
Wind12.1 mph N
Humidity29%
Visibility—
Dew point48°
Tue, 1891° / 71°0.04
91 °
Harwood Park, Tuesday, 18 August
Light rain. High 91°, low 71°.
Pressure30.03 inHg
Wind11.4 mph S
Humidity31%
Visibility—
Dew point54°
Wed, 1997° / 72°0.07
97 °
Harwood Park, Wednesday, 19 August
Light rain. High 97°, low 72°.
Pressure29.91 inHg
Wind11.6 mph NW
Humidity32%
Visibility—
Dew point58°
Thu, 2093° / 74°0
93 °
Harwood Park, Thursday, 20 August
Mostly clear. High 93°, low 74°.
Pressure29.94 inHg
Wind10.9 mph S
Humidity28%
Visibility—
Dew point52°
Fri, 2192° / 73°0.09
92 °
Harwood Park, Friday, 21 August
Light rain. High 92°, low 73°.
Pressure29.77 inHg
Wind10.1 mph NW
Humidity45%
Visibility—
Dew point64°
Sat, 2284° / 73°0.23
84 °
Harwood Park, Saturday, 22 August
Light rain. High 84°, low 73°.
Pressure29.88 inHg
Wind7.6 mph E
Humidity60%
Visibility—
Dew point67°
Sun, 2384° / 73°0.19
84 °
Harwood Park, Sunday, 23 August
Light rain. High 84°, low 73°.
Pressure30.00 inHg
Wind6.2 mph E
Humidity68%
Visibility—
Dew point69°
Mon, 2495° / 73°0.09
95 °
Harwood Park, Monday, 24 August
Light rain. High 95°, low 73°.
Pressure29.97 inHg
Wind8.1 mph W
Humidity41%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 67°0.06
83 °
Harwood Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.06 in
Chance of precipitation22%
Record high96° (1968)
Record low57° (1971)
Wed, 2684° / 67°0.06
84 °
Harwood Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.06 in
Chance of precipitation23%
Record high94° (1975)
Record low58° (1963)
Thu, 2784° / 68°0.15
84 °
Harwood Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.15 in
Chance of precipitation42%
Record high95° (1987)
Record low58° (2025)
Fri, 2884° / 68°0.17
84 °
Harwood Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.17 in
Chance of precipitation47%
Record high97° (1973)
Record low58° (2025)
Sat, 2983° / 68°0.13
83 °
Harwood Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.13 in
Chance of precipitation32%
Record high95° (1973)
Record low52° (1982)
Sun, 3083° / 67°0.08
83 °
Harwood Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.08 in
Chance of precipitation25%
Record high94° (1973)
Record low52° (1986)
Mon, 3182° / 67°0.08
82 °
Harwood Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.08 in
Chance of precipitation27%
Record high95° (1973)
Record low55° (1986)
Tue, 0181° / 66°0.15
81 °
Harwood Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.15 in
Chance of precipitation28%
Record high95° (1973)
Record low55° (1967)
Wed, 0281° / 65°0.13
81 °
Harwood Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation42%
Record high95° (1980)
Record low55° (1967)
Thu, 0382° / 66°0.11
82 °
Harwood Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation30%
Record high95° (2023)
Record low52° (1967)
Fri, 0482° / 66°0.09
82 °
Harwood Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.09 in
Chance of precipitation33%
Record high97° (2023)
Record low54° (1997)
Sat, 0581° / 66°0.14
81 °
Harwood Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.14 in
Chance of precipitation32%
Record high98° (2023)
Record low54° (1997)
Sun, 0680° / 65°0.25
80 °
Harwood Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.25 in
Chance of precipitation33%
Record high98° (2023)
Record low54° (2000)
Mon, 0781° / 64°0.07
81 °
Harwood Park, Monday, 7 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation27%
Record high92° (1998)
Record low53° (1988)
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 Harwood Park, 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 Harwood Park, 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.