Monthly outlook for Mill Creek, PA: average high 63.5°, average low 45.6°. That is 0.9° above the climate normal for October. Precipitation is expected on 4 days (about 2.8 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 13 October (80.6°), the coolest 18 October (26°).
63.5°/45.6°
Average high / low
+0.9°
Above normal
4 / 4
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
63.5°
62.9°
+0.4°
21 October – 30 October
63.3°
59.2°
+2.3°
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 (6 mi).
Mon, 1269° / 55°0
69 °
Mill Creek, Monday, 12 October
Overcast. High 69°, low 55°.
Pressure29.94 inHg
Wind8.9 mph NW
Humidity73%
Visibility6.2 mi
Dew point55°
Tue, 1381° / 54°0
81 °
Mill Creek, Tuesday, 13 October
Clear. High 81°, low 54°.
Pressure29.88 inHg
Wind7.5 mph SW
Humidity63%
Visibility6.2 mi
Dew point63°
Wed, 1473° / 59°0.05
73 °
Mill Creek, Wednesday, 14 October
Light rain. High 73°, low 59°.
Pressure29.94 inHg
Wind7.8 mph NW
Humidity73%
Visibility4.6 mi
Dew point62°
Thu, 1566° / 55°0
66 °
Mill Creek, Thursday, 15 October
Overcast. High 66°, low 55°.
Pressure30.21 inHg
Wind1.6 mph E
Humidity62%
Visibility6.2 mi
Dew point49°
Fri, 1668° / 50°0.66
68 °
Mill Creek, Friday, 16 October
Rain. High 68°, low 50°.
Pressure29.68 inHg
Wind18.1 mph NW
Humidity96%
Visibility—
Dew point66°
Sat, 1746° / 31°0.03
46 °
Mill Creek, Saturday, 17 October
Snow. High 46°, low 31°.
Pressure30.27 inHg
Wind16.4 mph NW
Humidity65%
Visibility—
Dew point31°
Sun, 1851° / 26°0
51 °
Mill Creek, Sunday, 18 October
Partly cloudy. High 51°, low 26°.
Pressure30.68 inHg
Wind5.8 mph NW
Humidity49%
Visibility—
Dew point22°
Mon, 1962° / 30°0
62 °
Mill Creek, Monday, 19 October
Clear. High 62°, low 30°.
Pressure30.56 inHg
Wind7.3 mph W
Humidity42%
Visibility—
Dew point27°
Tue, 2062° / 37°0
62 °
Mill Creek, Tuesday, 20 October
Partly cloudy. High 62°, low 37°.
Pressure30.50 inHg
Wind3 mph NW
Humidity54%
Visibility—
Dew point35°
Wed, 2160° / 43°0
60 °
Mill Creek, Wednesday, 21 October
Overcast. High 60°, low 43°.
Pressure30.56 inHg
Wind9.3 mph SE
Humidity64%
Visibility—
Dew point41°
Thu, 2260° / 52°0
60 °
Mill Creek, Thursday, 22 October
Overcast. High 60°, low 52°.
Pressure30.59 inHg
Wind6.5 mph SE
Humidity80%
Visibility—
Dew point49°
Fri, 2365° / 47°0
65 °
Mill Creek, Friday, 23 October
Overcast. High 65°, low 47°.
Pressure30.45 inHg
Wind5.9 mph S
Humidity73%
Visibility—
Dew point48°
Sat, 2469° / 49°0
69 °
Mill Creek, Saturday, 24 October
Overcast. High 69°, low 49°.
Pressure30.18 inHg
Wind7.8 mph S
Humidity78%
Visibility—
Dew point54°
Sun, 2568° / 49°0.07
68 °
Mill Creek, Sunday, 25 October
Light rain. High 68°, low 49°.
Pressure29.91 inHg
Wind8.8 mph W
Humidity69%
Visibility—
Dew point53°
Mon, 2657° / 40°0.01
57 °
Mill Creek, Monday, 26 October
Light rain. High 57°, low 40°.
Pressure30.00 inHg
Wind4.7 mph SW
Humidity68%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2759° / 44°0.14
59 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 °
Mill Creek, 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 Mill Creek, 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 Mill Creek, 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.