Monthly outlook for Rosemont Terrace, PA: average high 84.2°, average low 63.5°. That is 1.7° above the climate normal for August. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 23 August (93.9°), the coolest 15 August (52.1°).
84.2°/63.5°
Average high / low
+1.7°
Above normal
3 / 6
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81°
81.9°
-0.5°
19 August – 28 August
89.5°
80.5°
+5°
29 August – 7 September
at normal
79°
—
August records over 66 years
97.7°2 August 2006All-time high
44.6°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Stiles (5 mi).
Mon, 1087° / 70°0.03
87 °
Rosemont Terrace, Monday, 10 August
Light rain. High 87°, low 70°.
Pressure30.00 inHg
Wind5.4 mph W
Humidity50%
Visibility6.2 mi
Dew point64°
Tue, 1186° / 69°1.02
86 °
Rosemont Terrace, Tuesday, 11 August
Heavy rain. High 86°, low 69°.
Pressure29.88 inHg
Wind12 mph NW
Humidity51%
Visibility6.2 mi
Dew point63°
Wed, 1283° / 67°0.01
83 °
Rosemont Terrace, Wednesday, 12 August
Light rain. High 83°, low 67°.
Pressure29.77 inHg
Wind5.8 mph NW
Humidity66%
Visibility6.2 mi
Dew point66°
Thu, 1380° / 62°0.01
80 °
Rosemont Terrace, Thursday, 13 August
Light rain. High 80°, low 62°.
Pressure29.77 inHg
Wind13.6 mph NW
Humidity39%
Visibility—
Dew point52°
Fri, 1475° / 54°0
75 °
Rosemont Terrace, Friday, 14 August
Clear. High 75°, low 54°.
Pressure30.00 inHg
Wind13.4 mph NW
Humidity40%
Visibility—
Dew point47°
Sat, 1576° / 52°0
76 °
Rosemont Terrace, Saturday, 15 August
Clear. High 76°, low 52°.
Pressure30.12 inHg
Wind13.6 mph NW
Humidity38%
Visibility—
Dew point46°
Sun, 1677° / 53°0
77 °
Rosemont Terrace, Sunday, 16 August
Overcast. High 77°, low 53°.
Pressure30.12 inHg
Wind6.4 mph NW
Humidity35%
Visibility—
Dew point45°
Mon, 1779° / 57°0
79 °
Rosemont Terrace, Monday, 17 August
Partly cloudy. High 79°, low 57°.
Pressure30.00 inHg
Wind6 mph SW
Humidity43%
Visibility—
Dew point53°
Tue, 1883° / 61°0
83 °
Rosemont Terrace, Tuesday, 18 August
Mostly clear. High 83°, low 61°.
Pressure30.03 inHg
Wind4.9 mph W
Humidity46%
Visibility—
Dew point58°
Wed, 1986° / 63°0
86 °
Rosemont Terrace, Wednesday, 19 August
Clear. High 86°, low 63°.
Pressure30.09 inHg
Wind4.4 mph SE
Humidity42%
Visibility—
Dew point58°
Thu, 2087° / 62°0
87 °
Rosemont Terrace, Thursday, 20 August
Partly cloudy. High 87°, low 62°.
Pressure30.03 inHg
Wind7.1 mph S
Humidity40%
Visibility—
Dew point57°
Fri, 2191° / 66°0.15
91 °
Rosemont Terrace, Friday, 21 August
Rain. High 91°, low 66°.
Pressure29.83 inHg
Wind10.9 mph SW
Humidity48%
Visibility—
Dew point66°
Sat, 2291° / 70°0.02
91 °
Rosemont Terrace, Saturday, 22 August
Light rain. High 91°, low 70°.
Pressure29.91 inHg
Wind7.2 mph N
Humidity37%
Visibility—
Dew point58°
Sun, 2394° / 66°0
94 °
Rosemont Terrace, Sunday, 23 August
Clear. High 94°, low 66°.
Pressure29.94 inHg
Wind6.4 mph SW
Humidity35%
Visibility—
Dew point58°
Mon, 2489° / 72°0.41
89 °
Rosemont Terrace, Monday, 24 August
Rain. High 89°, low 72°.
Pressure29.97 inHg
Wind9.6 mph W
Humidity65%
Visibility—
Dew point71°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 62°0.07
81 °
Rosemont Terrace, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high94° (1968)
Record low49° (1971)
Wed, 2682° / 62°0.06
82 °
Rosemont Terrace, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low62°
Average precipitation0.06 in
Chance of precipitation20%
Record high92° (1993)
Record low50° (1977)
Thu, 2782° / 63°0.19
82 °
Rosemont Terrace, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.19 in
Chance of precipitation33%
Record high94° (2020)
Record low52° (1963)
Fri, 2881° / 64°0.19
81 °
Rosemont Terrace, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.19 in
Chance of precipitation40%
Record high93° (1993)
Record low51° (1968)
Sat, 2980° / 64°0.14
80 °
Rosemont Terrace, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.14 in
Chance of precipitation37%
Record high92° (2010)
Record low45° (1982)
Sun, 3080° / 62°0.05
80 °
Rosemont Terrace, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.05 in
Chance of precipitation27%
Record high92° (1991)
Record low45° (1986)
Mon, 3180° / 62°0.06
80 °
Rosemont Terrace, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation20%
Record high93° (2010)
Record low46° (1986)
Tue, 0179° / 61°0.15
79 °
Rosemont Terrace, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.15 in
Chance of precipitation30%
Record high93° (2010)
Record low50° (1967)
Wed, 0279° / 61°0.12
79 °
Rosemont Terrace, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.12 in
Chance of precipitation33%
Record high95° (2010)
Record low47° (1970)
Thu, 0379° / 61°0.14
79 °
Rosemont Terrace, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.14 in
Chance of precipitation28%
Record high92° (2015)
Record low45° (1967)
Fri, 0479° / 61°0.13
79 °
Rosemont Terrace, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.13 in
Chance of precipitation22%
Record high94° (2023)
Record low48° (1987)
Sat, 0578° / 61°0.07
78 °
Rosemont Terrace, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation25%
Record high94° (2023)
Record low48° (1994)
Sun, 0678° / 60°0.23
78 °
Rosemont Terrace, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.23 in
Chance of precipitation30%
Record high93° (2023)
Record low46° (1984)
Mon, 0778° / 60°0.13
78 °
Rosemont Terrace, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.13 in
Chance of precipitation25%
Record high91° (2015)
Record low42° (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 Rosemont Terrace, 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 Rosemont Terrace, 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.