Monthly outlook for Shippensburg, PA: average high 87.1°, average low 64.8°. That is 2.9° above the climate normal for August. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 23 August (99.7°), the coolest 16 August (53.4°).
87.1°/64.8°
Average high / low
+2.9°
Above normal
5 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
82.8°
82.7°
+0°
19 August – 28 August
94.4°
81.4°
+7.2°
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 (1 mi).
Mon, 1087° / 70°0.08
87 °
Shippensburg, Monday, 10 August
Light rain. High 87°, low 70°.
Pressure30.00 inHg
Wind7.9 mph W
Humidity51%
Visibility6.2 mi
Dew point66°
Tue, 1188° / 67°0.3
88 °
Shippensburg, Tuesday, 11 August
Heavy rain. High 88°, low 67°.
Pressure29.94 inHg
Wind11.5 mph NW
Humidity55%
Visibility6.2 mi
Dew point65°
Wed, 1289° / 65°0.01
89 °
Shippensburg, Wednesday, 12 August
Light rain. High 89°, low 65°.
Pressure29.80 inHg
Wind12.1 mph W
Humidity62%
Visibility6.2 mi
Dew point66°
Thu, 1382° / 65°0.24
82 °
Shippensburg, Thursday, 13 August
Rain. High 82°, low 65°.
Pressure29.85 inHg
Wind16 mph NW
Humidity34%
Visibility—
Dew point49°
Fri, 1478° / 57°0
78 °
Shippensburg, Friday, 14 August
Overcast. High 78°, low 57°.
Pressure30.06 inHg
Wind11.6 mph NW
Humidity37%
Visibility—
Dew point46°
Sat, 1577° / 54°0
77 °
Shippensburg, Saturday, 15 August
Clear. High 77°, low 54°.
Pressure30.18 inHg
Wind11.1 mph NW
Humidity33%
Visibility—
Dew point42°
Sun, 1676° / 53°0
76 °
Shippensburg, Sunday, 16 August
Overcast. High 76°, low 53°.
Pressure30.15 inHg
Wind7.6 mph SW
Humidity32%
Visibility—
Dew point42°
Mon, 1779° / 58°0
79 °
Shippensburg, Monday, 17 August
Overcast. High 79°, low 58°.
Pressure29.97 inHg
Wind5 mph SE
Humidity46%
Visibility—
Dew point55°
Tue, 1886° / 62°0
86 °
Shippensburg, Tuesday, 18 August
Mostly clear. High 86°, low 62°.
Pressure30.00 inHg
Wind4.2 mph NW
Humidity36%
Visibility—
Dew point53°
Wed, 1983° / 67°0
83 °
Shippensburg, Wednesday, 19 August
Partly cloudy. High 83°, low 67°.
Pressure30.06 inHg
Wind8.9 mph SE
Humidity45%
Visibility—
Dew point58°
Thu, 2094° / 65°0
94 °
Shippensburg, Thursday, 20 August
Overcast. High 94°, low 65°.
Pressure29.97 inHg
Wind9.4 mph S
Humidity33%
Visibility—
Dew point56°
Fri, 2197° / 69°0.23
97 °
Shippensburg, Friday, 21 August
Rain. High 97°, low 69°.
Pressure29.83 inHg
Wind7.6 mph SW
Humidity41%
Visibility—
Dew point66°
Sat, 2295° / 74°0
95 °
Shippensburg, Saturday, 22 August
Mostly clear. High 95°, low 74°.
Pressure29.91 inHg
Wind7.8 mph N
Humidity30%
Visibility—
Dew point56°
Sun, 23100° / 69°0.02
100 °
Shippensburg, Sunday, 23 August
Light rain. High 100°, low 69°.
Pressure29.91 inHg
Wind6.8 mph W
Humidity31%
Visibility—
Dew point59°
Mon, 2498° / 71°0.28
98 °
Shippensburg, Monday, 24 August
Rain. High 98°, low 71°.
Pressure29.94 inHg
Wind9.6 mph SW
Humidity40%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 63°0.06
82 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 °
Shippensburg, 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 Shippensburg, 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 Shippensburg, 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.