Monthly outlook for Cumminsville, PA: average high 86.4°, average low 64°. That is 2.5° above the climate normal for August. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 23 August (99.6°), the coolest 16 August (53.3°).
86.4°/64°
Average high / low
+2.5°
Above normal
5 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
82.4°
82.7°
-0.2°
19 August – 28 August
93.1°
81.4°
+6.5°
29 August – 7 September
at normal
80°
—
August records over 66 years
97.9°3 August 2006All-time high
46.4°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Shippensburg University (12 mi).
Mon, 1086° / 69°0.08
86 °
Cumminsville, Monday, 10 August
Light rain. High 86°, low 69°.
Pressure30.00 inHg
Wind8.3 mph W
Humidity53%
Visibility6.2 mi
Dew point66°
Tue, 1188° / 67°0.35
88 °
Cumminsville, Tuesday, 11 August
Heavy rain. High 88°, low 67°.
Pressure29.91 inHg
Wind12.1 mph NW
Humidity56%
Visibility6.2 mi
Dew point65°
Wed, 1288° / 65°0.01
88 °
Cumminsville, Wednesday, 12 August
Light rain. High 88°, low 65°.
Pressure29.80 inHg
Wind12.1 mph W
Humidity60%
Visibility6.2 mi
Dew point66°
Thu, 1381° / 65°0.28
81 °
Cumminsville, Thursday, 13 August
Rain. High 81°, low 65°.
Pressure29.83 inHg
Wind15.5 mph NW
Humidity34%
Visibility—
Dew point49°
Fri, 1477° / 57°0
77 °
Cumminsville, Friday, 14 August
Overcast. High 77°, low 57°.
Pressure30.06 inHg
Wind11.1 mph NW
Humidity37%
Visibility—
Dew point46°
Sat, 1576° / 54°0
76 °
Cumminsville, Saturday, 15 August
Clear. High 76°, low 54°.
Pressure30.18 inHg
Wind11.6 mph N
Humidity34%
Visibility—
Dew point43°
Sun, 1678° / 53°0
78 °
Cumminsville, Sunday, 16 August
Overcast. High 78°, low 53°.
Pressure30.15 inHg
Wind3.6 mph SW
Humidity31%
Visibility—
Dew point42°
Mon, 1778° / 57°0
78 °
Cumminsville, Monday, 17 August
Overcast. High 78°, low 57°.
Pressure29.97 inHg
Wind5.6 mph SE
Humidity47%
Visibility—
Dew point54°
Tue, 1885° / 61°0
85 °
Cumminsville, Tuesday, 18 August
Partly cloudy. High 85°, low 61°.
Pressure30.00 inHg
Wind3.9 mph N
Humidity39%
Visibility—
Dew point55°
Wed, 1985° / 65°0
85 °
Cumminsville, Wednesday, 19 August
Partly cloudy. High 85°, low 65°.
Pressure30.06 inHg
Wind7.8 mph SE
Humidity51%
Visibility—
Dew point60°
Thu, 2092° / 63°0
92 °
Cumminsville, Thursday, 20 August
Overcast. High 92°, low 63°.
Pressure29.97 inHg
Wind9.9 mph S
Humidity35%
Visibility—
Dew point56°
Fri, 2197° / 67°0.21
97 °
Cumminsville, Friday, 21 August
Light rain. High 97°, low 67°.
Pressure29.83 inHg
Wind6.9 mph SW
Humidity40%
Visibility—
Dew point65°
Sat, 2293° / 72°0
93 °
Cumminsville, Saturday, 22 August
Mostly clear. High 93°, low 72°.
Pressure29.91 inHg
Wind7.4 mph N
Humidity33%
Visibility—
Dew point58°
Sun, 23100° / 68°0.01
100 °
Cumminsville, Sunday, 23 August
Light rain. High 100°, low 68°.
Pressure29.91 inHg
Wind6.6 mph NW
Humidity30%
Visibility—
Dew point58°
Mon, 2492° / 70°0.56
92 °
Cumminsville, Monday, 24 August
Rain. High 92°, low 70°.
Pressure29.94 inHg
Wind8.3 mph SW
Humidity53%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 63°0.06
82 °
Cumminsville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.06 in
Chance of precipitation25%
Record high94° (2007)
Record low52° (1987)
Wed, 2683° / 64°0.06
83 °
Cumminsville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.06 in
Chance of precipitation22%
Record high93° (1993)
Record low53° (1963)
Thu, 2783° / 65°0.15
83 °
Cumminsville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.15 in
Chance of precipitation35%
Record high94° (1993)
Record low52° (2025)
Fri, 2883° / 65°0.16
83 °
Cumminsville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.16 in
Chance of precipitation37%
Record high95° (1993)
Record low52° (1968)
Sat, 2982° / 64°0.08
82 °
Cumminsville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.08 in
Chance of precipitation32%
Record high93° (1991)
Record low46° (1982)
Sun, 3081° / 63°0.05
81 °
Cumminsville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.05 in
Chance of precipitation32%
Record high93° (1991)
Record low48° (1986)
Mon, 3181° / 63°0.09
81 °
Cumminsville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.09 in
Chance of precipitation27%
Record high94° (1973)
Record low49° (1976)
Tue, 0179° / 62°0.13
79 °
Cumminsville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (2010)
Record low49° (1967)
Wed, 0280° / 62°0.1
80 °
Cumminsville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.1 in
Chance of precipitation30%
Record high95° (2010)
Record low51° (1970)
Thu, 0380° / 62°0.06
80 °
Cumminsville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation22%
Record high94° (2010)
Record low47° (1967)
Fri, 0480° / 63°0.11
80 °
Cumminsville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation27%
Record high93° (2023)
Record low51° (2024)
Sat, 0579° / 62°0.07
79 °
Cumminsville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation22%
Record high92° (2023)
Record low49° (1974)
Sun, 0679° / 61°0.2
79 °
Cumminsville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.2 in
Chance of precipitation33%
Record high94° (2023)
Record low49° (2000)
Mon, 0779° / 61°0.1
79 °
Cumminsville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.1 in
Chance of precipitation23%
Record high92° (2016)
Record low47° (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 Cumminsville, 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 Cumminsville, 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.