As of 20:54 EDT

Weather in Gwynedd, PA

77°Current weather

Gwynedd, Saturday, 8 August, 20:54

Overcast. Feels like 78°. High 86°, low 70°.

Pressure29.97 inHg
Wind5.2 mph SW
Humidity74%
Visibility6.2 mi
Dew point69°

Monthly outlook for Gwynedd, PA: average high 81.1°, average low 66.1°. That is 0.7° below the climate normal for August. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 11 August (89.3°), the coolest 22 August (57.9°).

81.1°/66.1°
Average high / low
−0.7°
Below normal
4 / 6
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August83.6°83.2°+0.2°
18 August – 27 August77°81.6°-2.5°
28 August – 6 Septemberat normal80.5°

August records over 66 years

100°9 August 2001All-time high
46.9°30 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Glenside (9 mi).

Sun, 0989° / 72°0.01Light rain
89 °Light rain

Gwynedd, Sunday, 9 August

Light rain. High 89°, low 72°.

Pressure30.00 inHg
Wind7.7 mph W
Humidity47%
Visibility6.2 mi
Dew point66°
Mon, 1089° / 72°0Light rain
89 °Light rain

Gwynedd, Monday, 10 August

Light rain. High 89°, low 72°.

Pressure30.00 inHg
Wind7.4 mph W
Humidity43%
Visibility6.2 mi
Dew point62°
Tue, 1189° / 72°0.02Light rain
89 °Light rain

Gwynedd, Tuesday, 11 August

Light rain. High 89°, low 72°.

Pressure29.88 inHg
Wind4.2 mph NW
Humidity57%
Visibility6.2 mi
Dew point69°
Wed, 1282° / 72°0.01Light rain
82 °Light rain

Gwynedd, Wednesday, 12 August

Light rain. High 82°, low 72°.

Pressure29.74 inHg
Wind10.8 mph NW
Humidity61%
Visibility6.2 mi
Dew point67°
Thu, 1384° / 69°0.01Light rain
84 °Light rain

Gwynedd, Thursday, 13 August

Light rain. High 84°, low 69°.

Pressure29.80 inHg
Wind11.8 mph NW
Humidity36%
Visibility
Dew point53°
Fri, 1479° / 61°0Clear
79 °Clear

Gwynedd, Friday, 14 August

Clear. High 79°, low 61°.

Pressure30.03 inHg
Wind8.3 mph NW
Humidity31%
Visibility
Dew point43°
Sat, 1580° / 62°0Clear
80 °Clear

Gwynedd, Saturday, 15 August

Clear. High 80°, low 62°.

Pressure30.12 inHg
Wind10.3 mph NW
Humidity33%
Visibility
Dew point46°
Sun, 1680° / 61°0Overcast
80 °Overcast

Gwynedd, Sunday, 16 August

Overcast. High 80°, low 61°.

Pressure30.18 inHg
Wind5.5 mph W
Humidity31%
Visibility
Dew point45°
Mon, 1777° / 65°0.06Light rain
77 °Light rain

Gwynedd, Monday, 17 August

Light rain. High 77°, low 65°.

Pressure30.09 inHg
Wind8.5 mph S
Humidity55%
Visibility
Dew point59°
Tue, 1867° / 65°0.19Light rain
67 °Light rain

Gwynedd, Tuesday, 18 August

Light rain. High 67°, low 65°.

Pressure30.09 inHg
Wind7.4 mph SE
Humidity90%
Visibility
Dew point63°
Wed, 1977° / 66°0.02Light rain
77 °Light rain

Gwynedd, Wednesday, 19 August

Light rain. High 77°, low 66°.

Pressure29.91 inHg
Wind10.5 mph S
Humidity63%
Visibility
Dew point62°
Thu, 2078° / 67°1.22Heavy rain
78 °Heavy rain

Gwynedd, Thursday, 20 August

Heavy rain. High 78°, low 67°.

Pressure29.68 inHg
Wind14.8 mph W
Humidity44%
Visibility
Dew point53°
Fri, 2178° / 60°0Clear
78 °Clear

Gwynedd, Friday, 21 August

Clear. High 78°, low 60°.

Pressure29.85 inHg
Wind11.9 mph NW
Humidity35%
Visibility
Dew point45°
Sat, 2278° / 58°0Clear
78 °Clear

Gwynedd, Saturday, 22 August

Clear. High 78°, low 58°.

Pressure30.06 inHg
Wind5.7 mph W
Humidity33%
Visibility
Dew point44°
Sun, 2383° / 65°0Overcast
83 °Overcast

Gwynedd, Sunday, 23 August

Overcast. High 83°, low 65°.

Pressure29.97 inHg
Wind11.2 mph SW
Humidity64%
Visibility
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 64°0.06Climate normal
82 °Climate normal

Gwynedd, Monday, 24 August

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.06 in
Chance of precipitation18%
Record high93° (1968)
Record low53° (1971)
Tue, 2582° / 65°0.06Climate normal
82 °Climate normal

Gwynedd, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation13%
Record high96° (1968)
Record low53° (1987)
Wed, 2683° / 65°0.06Climate normal
83 °Climate normal

Gwynedd, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.06 in
Chance of precipitation23%
Record high92° (1993)
Record low55° (1963)
Thu, 2783° / 66°0.18Climate normal
83 °Climate normal

Gwynedd, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.18 in
Chance of precipitation33%
Record high92° (2020)
Record low56° (1963)
Fri, 2882° / 67°0.23Climate normal
82 °Climate normal

Gwynedd, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°
Average low67°
Average precipitation0.23 in
Chance of precipitation47%
Record high95° (1973)
Record low56° (1986)
Sat, 2981° / 66°0.11Climate normal
81 °Climate normal

Gwynedd, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low66°
Average precipitation0.11 in
Chance of precipitation30%
Record high95° (2010)
Record low49° (1982)
Sun, 3082° / 65°0.06Climate normal
82 °Climate normal

Gwynedd, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation27%
Record high94° (1973)
Record low47° (1986)
Mon, 3181° / 65°0.07Climate normal
81 °Climate normal

Gwynedd, Monday, 31 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation20%
Record high96° (2010)
Record low51° (1976)
Tue, 0180° / 64°0.13Climate normal
80 °Climate normal

Gwynedd, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation32%
Record high94° (2010)
Record low55° (1967)
Wed, 0280° / 64°0.11Climate normal
80 °Climate normal

Gwynedd, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation33%
Record high94° (1980)
Record low53° (1970)
Thu, 0380° / 64°0.15Climate normal
80 °Climate normal

Gwynedd, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.15 in
Chance of precipitation28%
Record high93° (2015)
Record low49° (1967)
Fri, 0480° / 64°0.09Climate normal
80 °Climate normal

Gwynedd, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high94° (2023)
Record low53° (1997)
Sat, 0580° / 64°0.09Climate normal
80 °Climate normal

Gwynedd, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation23%
Record high94° (2023)
Record low53° (1997)
Sun, 0679° / 63°0.2Climate normal
79 °Climate normal

Gwynedd, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.2 in
Chance of precipitation33%
Record high94° (2023)
Record low51° (1984)

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 Gwynedd, PA 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 Gwynedd, PA 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.