As of 22:34 EDT

Weather in Gwynnbrook, MD

75°Current weather

Gwynnbrook, Saturday, 8 August, 22:34

Overcast. Feels like 76°. High 85°, low 70°.

Pressure30.00 inHg
Wind7.4 mph SW
Humidity87%
Visibility6.2 mi
Dew point71°

Monthly outlook for Gwynnbrook, MD: average high 82°, average low 66.4°. That is 0.1° above the climate normal for August. Precipitation is expected on 8 days (about 0.9 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 12 August (90.9°), the coolest 22 August (58.7°).

82°/66.4°
Average high / low
+0.1°
Above normal
8 / 6
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August83.6°82.6°+0.5°
18 August – 27 August79.5°81°-0.9°
28 August – 6 Septemberat normal80.2°

August records over 66 years

97.2°15 August 1988All-time high
48°30 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Reisterstown (2 mi).

Sun, 0987° / 72°0Mostly clear
87 °Mostly clear

Gwynnbrook, Sunday, 9 August

Mostly clear. High 87°, low 72°.

Pressure30.03 inHg
Wind7.6 mph NW
Humidity48%
Visibility6.2 mi
Dew point66°
Mon, 1091° / 73°0.13Rain
91 °Rain

Gwynnbrook, Monday, 10 August

Rain. High 91°, low 73°.

Pressure30.00 inHg
Wind7.8 mph NW
Humidity47%
Visibility6.2 mi
Dew point64°
Tue, 1187° / 69°0.25Rain
87 °Rain

Gwynnbrook, Tuesday, 11 August

Rain. High 87°, low 69°.

Pressure29.94 inHg
Wind7.5 mph W
Humidity57%
Visibility6.2 mi
Dew point68°
Wed, 1291° / 72°0.06Light rain
91 °Light rain

Gwynnbrook, Wednesday, 12 August

Light rain. High 91°, low 72°.

Pressure29.77 inHg
Wind8.9 mph W
Humidity68%
Visibility6.2 mi
Dew point66°
Thu, 1383° / 68°0.05Light rain
83 °Light rain

Gwynnbrook, Thursday, 13 August

Light rain. High 83°, low 68°.

Pressure29.85 inHg
Wind13.1 mph NW
Humidity34%
Visibility
Dew point50°
Fri, 1477° / 62°0Overcast
77 °Overcast

Gwynnbrook, Friday, 14 August

Overcast. High 77°, low 62°.

Pressure30.06 inHg
Wind8.6 mph W
Humidity41%
Visibility
Dew point48°
Sat, 1579° / 61°0Clear
79 °Clear

Gwynnbrook, Saturday, 15 August

Clear. High 79°, low 61°.

Pressure30.18 inHg
Wind10.7 mph N
Humidity34%
Visibility
Dew point46°
Sun, 1682° / 61°0Overcast
82 °Overcast

Gwynnbrook, Sunday, 16 August

Overcast. High 82°, low 61°.

Pressure30.18 inHg
Wind6.6 mph SE
Humidity34%
Visibility
Dew point49°
Mon, 1773° / 67°0.04Light rain
73 °Light rain

Gwynnbrook, Monday, 17 August

Light rain. High 73°, low 67°.

Pressure30.09 inHg
Wind8.3 mph S
Humidity66%
Visibility
Dew point60°
Tue, 1873° / 66°0.13Light rain
73 °Light rain

Gwynnbrook, Tuesday, 18 August

Light rain. High 73°, low 66°.

Pressure30.03 inHg
Wind5.9 mph S
Humidity79%
Visibility
Dew point65°
Wed, 1981° / 68°0.06Light rain
81 °Light rain

Gwynnbrook, Wednesday, 19 August

Light rain. High 81°, low 68°.

Pressure29.91 inHg
Wind9.7 mph S
Humidity73%
Visibility
Dew point67°
Thu, 2079° / 66°0.14Light rain
79 °Light rain

Gwynnbrook, Thursday, 20 August

Light rain. High 79°, low 66°.

Pressure29.74 inHg
Wind16.5 mph NW
Humidity41%
Visibility
Dew point51°
Fri, 2180° / 59°0Clear
80 °Clear

Gwynnbrook, Friday, 21 August

Clear. High 80°, low 59°.

Pressure29.91 inHg
Wind11.7 mph NW
Humidity34%
Visibility
Dew point45°
Sat, 2281° / 59°0Partly cloudy
81 °Partly cloudy

Gwynnbrook, Saturday, 22 August

Partly cloudy. High 81°, low 59°.

Pressure30.06 inHg
Wind6.9 mph SE
Humidity32%
Visibility
Dew point45°
Sun, 2383° / 69°0.01Light rain
83 °Light rain

Gwynnbrook, Sunday, 23 August

Light rain. High 83°, low 69°.

Pressure29.94 inHg
Wind13.1 mph SW
Humidity62%
Visibility
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.06Climate normal
81 °Climate normal

Gwynnbrook, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.06 in
Chance of precipitation20%
Record high92° (1998)
Record low54° (1971)
Tue, 2582° / 65°0.06Climate normal
82 °Climate normal

Gwynnbrook, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation20%
Record high94° (1968)
Record low55° (1987)
Wed, 2682° / 65°0.06Climate normal
82 °Climate normal

Gwynnbrook, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation25%
Record high93° (1975)
Record low55° (1963)
Thu, 2782° / 66°0.15Climate normal
82 °Climate normal

Gwynnbrook, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation37%
Record high91° (2020)
Record low55° (1969)
Fri, 2882° / 66°0.17Climate normal
82 °Climate normal

Gwynnbrook, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°
Average low66°
Average precipitation0.17 in
Chance of precipitation45%
Record high95° (1973)
Record low55° (1968)
Sat, 2981° / 66°0.1Climate normal
81 °Climate normal

Gwynnbrook, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low66°
Average precipitation0.1 in
Chance of precipitation30%
Record high94° (1973)
Record low49° (1982)
Sun, 3082° / 65°0.07Climate normal
82 °Climate normal

Gwynnbrook, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation25%
Record high93° (1973)
Record low48° (1986)
Mon, 3181° / 65°0.07Climate normal
81 °Climate normal

Gwynnbrook, Monday, 31 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high94° (1973)
Record low52° (1976)
Tue, 0179° / 64°0.13Climate normal
79 °Climate normal

Gwynnbrook, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high79°
Average low64°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (1973)
Record low52° (1967)
Wed, 0280° / 63°0.12Climate normal
80 °Climate normal

Gwynnbrook, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation40%
Record high94° (1980)
Record low53° (1967)
Thu, 0380° / 64°0.11Climate normal
80 °Climate normal

Gwynnbrook, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high93° (2023)
Record low49° (1967)
Fri, 0480° / 64°0.11Climate normal
80 °Climate normal

Gwynnbrook, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high96° (2023)
Record low52° (1997)
Sat, 0579° / 63°0.14Climate normal
79 °Climate normal

Gwynnbrook, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.14 in
Chance of precipitation30%
Record high95° (2023)
Record low52° (1997)
Sun, 0679° / 63°0.25Climate normal
79 °Climate normal

Gwynnbrook, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.25 in
Chance of precipitation32%
Record high95° (2023)
Record low51° (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 Gwynnbrook, 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 Gwynnbrook, 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.