Monthly outlook for Chelsea Beach, MD: average high 86.7°, average low 71.9°. That is 2.6° above the climate normal for August. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 21 August (93°), the coolest 16 August (64.1°).
86.7°/71.9°
Average high / low
+2.6°
Above normal
4 / 6
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.8°
82.7°
+1.1°
19 August – 28 August
90°
81.4°
+4.8°
29 August – 7 September
at normal
80.4°
—
August records over 66 years
96.1°15 August 1988All-time high
54.1°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Green Haven (3 mi).
Mon, 1089° / 74°0
89 °
Chelsea Beach, Monday, 10 August
Partly cloudy. High 89°, low 74°.
Pressure30.00 inHg
Wind4.2 mph SE
Humidity42%
Visibility6.2 mi
Dew point64°
Tue, 1192° / 73°0.06
92 °
Chelsea Beach, Tuesday, 11 August
Light rain. High 92°, low 73°.
Pressure29.91 inHg
Wind8.9 mph N
Humidity48%
Visibility6.2 mi
Dew point64°
Wed, 1290° / 75°0.04
90 °
Chelsea Beach, Wednesday, 12 August
Light rain. High 90°, low 75°.
Pressure29.80 inHg
Wind11.7 mph W
Humidity54%
Visibility6.2 mi
Dew point66°
Thu, 1388° / 74°0.02
88 °
Chelsea Beach, Thursday, 13 August
Light rain. High 88°, low 74°.
Pressure29.83 inHg
Wind14.7 mph NW
Humidity41%
Visibility—
Dew point58°
Fri, 1482° / 67°0
82 °
Chelsea Beach, Friday, 14 August
Overcast. High 82°, low 67°.
Pressure30.03 inHg
Wind9.9 mph N
Humidity33%
Visibility—
Dew point47°
Sat, 1580° / 66°0
80 °
Chelsea Beach, Saturday, 15 August
Partly cloudy. High 80°, low 66°.
Pressure30.15 inHg
Wind12.7 mph N
Humidity31%
Visibility—
Dew point44°
Sun, 1680° / 64°0
80 °
Chelsea Beach, Sunday, 16 August
Overcast. High 80°, low 64°.
Pressure30.12 inHg
Wind7.5 mph N
Humidity28%
Visibility—
Dew point42°
Mon, 1775° / 70°0.21
75 °
Chelsea Beach, Monday, 17 August
Light rain. High 75°, low 70°.
Pressure30.00 inHg
Wind8.3 mph SE
Humidity74%
Visibility—
Dew point66°
Tue, 1884° / 69°0.02
84 °
Chelsea Beach, Tuesday, 18 August
Light rain. High 84°, low 69°.
Pressure30.00 inHg
Wind8.9 mph SE
Humidity51%
Visibility—
Dew point60°
Wed, 1986° / 70°0
86 °
Chelsea Beach, Wednesday, 19 August
Clear. High 86°, low 70°.
Pressure30.09 inHg
Wind8.7 mph SE
Humidity44%
Visibility—
Dew point58°
Thu, 2086° / 72°0
86 °
Chelsea Beach, Thursday, 20 August
Mostly clear. High 86°, low 72°.
Pressure30.03 inHg
Wind11.9 mph S
Humidity46%
Visibility—
Dew point60°
Fri, 2193° / 73°0.07
93 °
Chelsea Beach, Friday, 21 August
Light rain. High 93°, low 73°.
Pressure29.83 inHg
Wind15.9 mph S
Humidity47%
Visibility—
Dew point68°
Sat, 2293° / 78°0.01
93 °
Chelsea Beach, Saturday, 22 August
Light rain. High 93°, low 78°.
Pressure29.88 inHg
Wind9.5 mph NE
Humidity55%
Visibility—
Dew point71°
Sun, 2390° / 76°0.01
90 °
Chelsea Beach, Sunday, 23 August
Light rain. High 90°, low 76°.
Pressure29.94 inHg
Wind9 mph SE
Humidity41%
Visibility—
Dew point62°
Mon, 2492° / 74°0.09
92 °
Chelsea Beach, Monday, 24 August
Light rain. High 92°, low 74°.
Pressure29.94 inHg
Wind8.2 mph SW
Humidity48%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 69°0.07
82 °
Chelsea Beach, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.07 in
Chance of precipitation17%
Record high92° (1968)
Record low60° (1963)
Wed, 2682° / 70°0.06
82 °
Chelsea Beach, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.06 in
Chance of precipitation18%
Record high91° (1975)
Record low61° (1963)
Thu, 2782° / 71°0.16
82 °
Chelsea Beach, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.16 in
Chance of precipitation38%
Record high92° (2020)
Record low61° (1969)
Fri, 2882° / 71°0.17
82 °
Chelsea Beach, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.17 in
Chance of precipitation45%
Record high94° (1973)
Record low60° (1986)
Sat, 2982° / 70°0.12
82 °
Chelsea Beach, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.12 in
Chance of precipitation32%
Record high91° (1973)
Record low54° (1982)
Sun, 3082° / 69°0.06
82 °
Chelsea Beach, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.06 in
Chance of precipitation25%
Record high91° (1973)
Record low56° (1986)
Mon, 3181° / 69°0.08
81 °
Chelsea Beach, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low69°
Average precipitation0.08 in
Chance of precipitation27%
Record high91° (1973)
Record low58° (1976)
Tue, 0180° / 69°0.14
80 °
Chelsea Beach, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.14 in
Chance of precipitation27%
Record high91° (1980)
Record low58° (1967)
Wed, 0280° / 68°0.12
80 °
Chelsea Beach, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.12 in
Chance of precipitation42%
Record high91° (1980)
Record low58° (1967)
Thu, 0381° / 68°0.11
81 °
Chelsea Beach, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.11 in
Chance of precipitation25%
Record high94° (2023)
Record low56° (1967)
Fri, 0480° / 69°0.09
80 °
Chelsea Beach, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.09 in
Chance of precipitation32%
Record high97° (2023)
Record low56° (1997)
Sat, 0580° / 68°0.13
80 °
Chelsea Beach, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.13 in
Chance of precipitation30%
Record high94° (2023)
Record low57° (1997)
Sun, 0680° / 67°0.24
80 °
Chelsea Beach, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.24 in
Chance of precipitation35%
Record high95° (2023)
Record low56° (1962)
Mon, 0779° / 67°0.08
79 °
Chelsea Beach, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low67°
Average precipitation0.08 in
Chance of precipitation25%
Record high90° (1983)
Record low57° (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 Chelsea Beach, 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 Chelsea Beach, 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.