Monthly outlook for Waterloo, PA: average high 60.2°, average low 43.8°. That is 0.9° below the climate normal for October. Precipitation is expected on 2 days (about 3.1 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 13 October (82.2°), the coolest 19 October (26.6°).
60.2°/43.8°
Average high / low
−0.9°
Below normal
2 / 4
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
61.9°
62.9°
-0.5°
21 October – 30 October
57.4°
59.2°
-1°
31 October – 9 November
at normal
56.2°
—
October records over 66 years
88°1 October 2019All-time high
21°30 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Newton Hamilton (10 mi).
Mon, 1271° / 51°0.02
71 °
Waterloo, Monday, 12 October
Light rain. High 71°, low 51°.
Pressure29.91 inHg
Wind9.5 mph NW
Humidity64%
Visibility6.2 mi
Dew point59°
Tue, 1382° / 54°0
82 °
Waterloo, Tuesday, 13 October
Clear. High 82°, low 54°.
Pressure29.88 inHg
Wind7.8 mph S
Humidity64%
Visibility6.2 mi
Dew point63°
Wed, 1478° / 64°0.02
78 °
Waterloo, Wednesday, 14 October
Light rain. High 78°, low 64°.
Pressure29.94 inHg
Wind7.5 mph W
Humidity73%
Visibility6.2 mi
Dew point64°
Thu, 1565° / 56°0
65 °
Waterloo, Thursday, 15 October
Overcast. High 65°, low 56°.
Pressure30.27 inHg
Wind7.8 mph N
Humidity62%
Visibility—
Dew point48°
Fri, 1663° / 52°0.93
63 °
Waterloo, Friday, 16 October
Rain. High 63°, low 52°.
Pressure29.80 inHg
Wind19.7 mph NW
Humidity95%
Visibility—
Dew point58°
Sat, 1749° / 41°0.02
49 °
Waterloo, Saturday, 17 October
Light rain. High 49°, low 41°.
Pressure29.88 inHg
Wind13.6 mph W
Humidity61%
Visibility—
Dew point34°
Sun, 1843° / 32°0
43 °
Waterloo, Sunday, 18 October
Clear. High 43°, low 32°.
Pressure30.24 inHg
Wind14.4 mph NW
Humidity46%
Visibility—
Dew point20°
Mon, 1950° / 27°0
50 °
Waterloo, Monday, 19 October
Clear. High 50°, low 27°.
Pressure30.50 inHg
Wind8.7 mph NW
Humidity49%
Visibility—
Dew point22°
Tue, 2058° / 32°0
58 °
Waterloo, Tuesday, 20 October
Mostly clear. High 58°, low 32°.
Pressure30.42 inHg
Wind5.1 mph W
Humidity41%
Visibility—
Dew point25°
Wed, 2162° / 38°0
62 °
Waterloo, Wednesday, 21 October
Clear. High 62°, low 38°.
Pressure30.45 inHg
Wind4.3 mph S
Humidity50%
Visibility—
Dew point35°
Thu, 2262° / 41°0
62 °
Waterloo, Thursday, 22 October
Partly cloudy. High 62°, low 41°.
Pressure30.42 inHg
Wind4.2 mph SW
Humidity56%
Visibility—
Dew point38°
Fri, 2362° / 43°0
62 °
Waterloo, Friday, 23 October
Clear. High 62°, low 43°.
Pressure30.33 inHg
Wind9.2 mph NW
Humidity65%
Visibility—
Dew point44°
Sat, 2460° / 40°0
60 °
Waterloo, Saturday, 24 October
Clear. High 60°, low 40°.
Pressure30.27 inHg
Wind9.5 mph S
Humidity61%
Visibility—
Dew point39°
Sun, 2550° / 40°0
50 °
Waterloo, Sunday, 25 October
Overcast. High 50°, low 40°.
Pressure30.18 inHg
Wind12 mph W
Humidity66%
Visibility—
Dew point37°
Mon, 2649° / 37°0.02
49 °
Waterloo, Monday, 26 October
Light rain. High 49°, low 37°.
Pressure30.09 inHg
Wind9.4 mph NW
Humidity64%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2759° / 44°0.14
59 °
Waterloo, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.14 in
Chance of precipitation30%
Record high80° (1963)
Record low31° (1976)
Wed, 2859° / 43°0.08
59 °
Waterloo, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.08 in
Chance of precipitation30%
Record high78° (2014)
Record low27° (1976)
Thu, 2957° / 42°0.19
57 °
Waterloo, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.19 in
Chance of precipitation28%
Record high73° (2016)
Record low28° (1965)
Fri, 3057° / 41°0.11
57 °
Waterloo, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.11 in
Chance of precipitation25%
Record high79° (2024)
Record low21° (2011)
Sat, 3158° / 42°0.07
58 °
Waterloo, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.07 in
Chance of precipitation27%
Record high82° (2024)
Record low29° (1988)
Sun, 0159° / 44°0.06
59 °
Waterloo, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.06 in
Chance of precipitation20%
Record high76° (1974)
Record low23° (2002)
Mon, 0258° / 43°0.11
58 °
Waterloo, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation30%
Record high78° (1982)
Record low28° (2019)
Tue, 0358° / 42°0.06
58 °
Waterloo, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.06 in
Chance of precipitation30%
Record high76° (2003)
Record low29° (2002)
Wed, 0456° / 41°0.08
56 °
Waterloo, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.08 in
Chance of precipitation27%
Record high76° (2003)
Record low26° (2021)
Thu, 0556° / 41°0.11
56 °
Waterloo, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.11 in
Chance of precipitation30%
Record high74° (2024)
Record low25° (1991)
Fri, 0655° / 41°0.05
55 °
Waterloo, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.05 in
Chance of precipitation30%
Record high78° (2024)
Record low27° (1991)
Sat, 0754° / 40°0.09
54 °
Waterloo, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation35%
Record high72° (2020)
Record low26° (2021)
Sun, 0854° / 39°0.13
54 °
Waterloo, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.13 in
Chance of precipitation25%
Record high74° (2020)
Record low27° (1960)
Mon, 0954° / 39°0.09
54 °
Waterloo, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation35%
Record high73° (2020)
Record low24° (2019)
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 Waterloo, 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 Waterloo, 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.