Monthly outlook for Messiah College, PA: average high 81.2°, average low 63.4°. That is 0.5° below the climate normal for August. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 10 August (89.2°), the coolest 22 August (53.2°).
81.2°/63.4°
Average high / low
−0.5°
Below normal
5 / 5
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81.1°
82.8°
-0.9°
19 August – 28 August
81.4°
81.6°
-0.1°
29 August – 7 September
at normal
80.1°
—
August records over 66 years
98.4°12 August 2021All-time high
48°30 August 2025All-time low
Mon, 1089° / 71°0.17
89 °
Messiah College, Monday, 10 August
Rain. High 89°, low 71°.
Pressure30.00 inHg
Wind4.3 mph NW
Humidity61%
Visibility6.2 mi
Dew point65°
Tue, 1188° / 67°0.39
88 °
Messiah College, Tuesday, 11 August
Rain. High 88°, low 67°.
Pressure29.94 inHg
Wind6.4 mph W
Humidity58%
Visibility6.2 mi
Dew point66°
Wed, 1284° / 68°0.02
84 °
Messiah College, Wednesday, 12 August
Light rain. High 84°, low 68°.
Pressure29.74 inHg
Wind9.7 mph W
Humidity69%
Visibility6.2 mi
Dew point68°
Thu, 1381° / 65°0.01
81 °
Messiah College, Thursday, 13 August
Light rain. High 81°, low 65°.
Pressure29.85 inHg
Wind13.6 mph NW
Humidity32%
Visibility—
Dew point47°
Fri, 1480° / 57°0
80 °
Messiah College, Friday, 14 August
Clear. High 80°, low 57°.
Pressure30.03 inHg
Wind7.5 mph NW
Humidity35%
Visibility—
Dew point46°
Sat, 1580° / 58°0
80 °
Messiah College, Saturday, 15 August
Clear. High 80°, low 58°.
Pressure30.18 inHg
Wind12.1 mph NW
Humidity34%
Visibility—
Dew point46°
Sun, 1681° / 57°0
81 °
Messiah College, Sunday, 16 August
Overcast. High 81°, low 57°.
Pressure30.18 inHg
Wind5.7 mph E
Humidity38%
Visibility—
Dew point50°
Mon, 1775° / 64°0.21
75 °
Messiah College, Monday, 17 August
Rain. High 75°, low 64°.
Pressure30.09 inHg
Wind7.7 mph S
Humidity64%
Visibility—
Dew point61°
Tue, 1869° / 65°0.02
69 °
Messiah College, Tuesday, 18 August
Light rain. High 69°, low 65°.
Pressure30.06 inHg
Wind6.1 mph E
Humidity90%
Visibility—
Dew point65°
Wed, 1983° / 66°0.27
83 °
Messiah College, Wednesday, 19 August
Rain. High 83°, low 66°.
Pressure29.88 inHg
Wind10.7 mph S
Humidity71%
Visibility—
Dew point66°
Thu, 2075° / 64°0.48
75 °
Messiah College, Thursday, 20 August
Rain. High 75°, low 64°.
Pressure29.71 inHg
Wind15 mph W
Humidity50%
Visibility—
Dew point54°
Fri, 2179° / 58°0
79 °
Messiah College, Friday, 21 August
Clear. High 79°, low 58°.
Pressure29.91 inHg
Wind12.5 mph NW
Humidity33%
Visibility—
Dew point44°
Sat, 2279° / 53°0
79 °
Messiah College, Saturday, 22 August
Partly cloudy. High 79°, low 53°.
Pressure30.06 inHg
Wind5.5 mph E
Humidity32%
Visibility—
Dew point43°
Sun, 2386° / 63°0.01
86 °
Messiah College, Sunday, 23 August
Light rain. High 86°, low 63°.
Pressure29.91 inHg
Wind10 mph S
Humidity50%
Visibility—
Dew point62°
Mon, 2486° / 68°0
86 °
Messiah College, Monday, 24 August
Clear. High 86°, low 68°.
Pressure29.91 inHg
Wind13.3 mph NW
Humidity35%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 64°0.05
82 °
Messiah College, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.05 in
Chance of precipitation20%
Record high94° (2007)
Record low53° (1971)
Wed, 2683° / 64°0.05
83 °
Messiah College, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.05 in
Chance of precipitation23%
Record high93° (1975)
Record low54° (1963)
Thu, 2783° / 65°0.15
83 °
Messiah College, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.15 in
Chance of precipitation38%
Record high94° (2020)
Record low52° (2025)
Fri, 2883° / 66°0.17
83 °
Messiah College, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.17 in
Chance of precipitation38%
Record high96° (2024)
Record low51° (2025)
Sat, 2982° / 65°0.09
82 °
Messiah College, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation37%
Record high92° (1973)
Record low48° (1982)
Sun, 3081° / 64°0.06
81 °
Messiah College, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.06 in
Chance of precipitation23%
Record high93° (1991)
Record low48° (2025)
Mon, 3181° / 64°0.08
81 °
Messiah College, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high94° (1973)
Record low51° (2025)
Tue, 0179° / 63°0.12
79 °
Messiah College, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.12 in
Chance of precipitation25%
Record high93° (2010)
Record low50° (1967)
Wed, 0280° / 63°0.12
80 °
Messiah College, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation35%
Record high95° (1980)
Record low52° (1967)
Thu, 0381° / 62°0.06
81 °
Messiah College, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.06 in
Chance of precipitation20%
Record high92° (1993)
Record low49° (1967)
Fri, 0480° / 63°0.11
80 °
Messiah College, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation27%
Record high94° (2023)
Record low52° (1997)
Sat, 0579° / 63°0.07
79 °
Messiah College, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high93° (2023)
Record low51° (1974)
Sun, 0679° / 62°0.18
79 °
Messiah College, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.18 in
Chance of precipitation30%
Record high94° (2023)
Record low50° (2000)
Mon, 0780° / 62°0.11
80 °
Messiah College, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.11 in
Chance of precipitation22%
Record high91° (2016)
Record low48° (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 Messiah College, 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 Messiah College, 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.