Monthly outlook for Pottstown, IL: average high 70.9°, average low 54.8°. That is 5.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 12 October (88.1°), the coolest 17 October (38.9°).
70.9°/54.8°
Average high / low
+5.5°
Above normal
4 / 5
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
71.2°
62.3°
+5°
22 October – 31 October
70.5°
58.5°
+6.6°
1 November – 10 November
at normal
53.8°
—
October records over 66 years
89.1°3 October 2025All-time high
21°22 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Peoria (3 mi).
Tue, 1385° / 66°0.02
85 °
Pottstown, Tuesday, 13 October
Light rain. High 85°, low 66°.
Pressure29.88 inHg
Wind5.8 mph W
Humidity62%
Visibility6.2 mi
Dew point65°
Wed, 1477° / 63°0.01
77 °
Pottstown, Wednesday, 14 October
Light rain. High 77°, low 63°.
Pressure30.06 inHg
Wind6 mph NE
Humidity70%
Visibility6.2 mi
Dew point62°
Thu, 1565° / 60°0.42
65 °
Pottstown, Thursday, 15 October
Rain. High 65°, low 60°.
Pressure30.03 inHg
Wind6.4 mph NE
Humidity97%
Visibility3.0 mi
Dew point62°
Fri, 1660° / 48°0
60 °
Pottstown, Friday, 16 October
Partly cloudy. High 60°, low 48°.
Pressure30.39 inHg
Wind18.8 mph N
Humidity46%
Visibility—
Dew point37°
Sat, 1761° / 39°0
61 °
Pottstown, Saturday, 17 October
Clear. High 61°, low 39°.
Pressure30.47 inHg
Wind6.6 mph N
Humidity39%
Visibility—
Dew point32°
Sun, 1864° / 41°0
64 °
Pottstown, Sunday, 18 October
Clear. High 64°, low 41°.
Pressure30.27 inHg
Wind15.3 mph S
Humidity33%
Visibility—
Dew point29°
Mon, 1962° / 48°0.04
62 °
Pottstown, Monday, 19 October
Light rain. High 62°, low 48°.
Pressure30.21 inHg
Wind12.1 mph S
Humidity52%
Visibility—
Dew point43°
Tue, 2073° / 54°0.08
73 °
Pottstown, Tuesday, 20 October
Light rain. High 73°, low 54°.
Pressure30.21 inHg
Wind8 mph E
Humidity56%
Visibility—
Dew point52°
Wed, 2178° / 59°0
78 °
Pottstown, Wednesday, 21 October
Clear. High 78°, low 59°.
Pressure30.24 inHg
Wind9.3 mph SE
Humidity59%
Visibility—
Dew point58°
Thu, 2279° / 63°0
79 °
Pottstown, Thursday, 22 October
Overcast. High 79°, low 63°.
Pressure30.27 inHg
Wind13.8 mph S
Humidity50%
Visibility—
Dew point56°
Fri, 2380° / 68°0
80 °
Pottstown, Friday, 23 October
Light rain. High 80°, low 68°.
Pressure30.21 inHg
Wind12.9 mph S
Humidity54%
Visibility—
Dew point57°
Sat, 2478° / 65°0.73
78 °
Pottstown, Saturday, 24 October
Rain. High 78°, low 65°.
Pressure29.94 inHg
Wind19.3 mph S
Humidity55%
Visibility—
Dew point59°
Sun, 2565° / 52°0
65 °
Pottstown, Sunday, 25 October
Overcast. High 65°, low 52°.
Pressure30.03 inHg
Wind18.6 mph W
Humidity68%
Visibility—
Dew point45°
Mon, 2658° / 41°0
58 °
Pottstown, Monday, 26 October
Clear. High 58°, low 41°.
Pressure30.21 inHg
Wind14.3 mph NW
Humidity44%
Visibility—
Dew point32°
Tue, 2763° / 47°0
63 °
Pottstown, Tuesday, 27 October
Clear. High 63°, low 47°.
Pressure29.83 inHg
Wind18.7 mph NW
Humidity54%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2857° / 42°0.04
57 °
Pottstown, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation20%
Record high74° (1999)
Record low25° (1976)
Thu, 2957° / 42°0.08
57 °
Pottstown, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation25%
Record high78° (2024)
Record low23° (1980)
Fri, 3059° / 43°0.11
59 °
Pottstown, Friday, 30 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high79° (1971)
Record low25° (1988)
Sat, 3158° / 43°0.17
58 °
Pottstown, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.17 in
Chance of precipitation42%
Record high74° (1974)
Record low24° (2019)
Sun, 0157° / 42°0.18
57 °
Pottstown, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.18 in
Chance of precipitation32%
Record high77° (2016)
Record low22° (2019)
Mon, 0255° / 41°0.08
55 °
Pottstown, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.08 in
Chance of precipitation33%
Record high75° (1961)
Record low23° (1991)
Tue, 0354° / 40°0.09
54 °
Pottstown, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.09 in
Chance of precipitation23%
Record high74° (1964)
Record low17° (1991)
Wed, 0454° / 41°0.08
54 °
Pottstown, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (1978)
Record low16° (1991)
Thu, 0553° / 39°0.13
53 °
Pottstown, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation25%
Record high74° (1978)
Record low19° (1991)
Fri, 0653° / 38°0.09
53 °
Pottstown, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation25%
Record high71° (2020)
Record low24° (1991)
Sat, 0753° / 38°0.04
53 °
Pottstown, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1966)
Record low15° (1991)
Sun, 0853° / 38°0.05
53 °
Pottstown, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation20%
Record high75° (1999)
Record low12° (1991)
Mon, 0954° / 39°0.14
54 °
Pottstown, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation35%
Record high74° (2020)
Record low16° (1991)
Tue, 1051° / 37°0.15
51 °
Pottstown, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation32%
Record high73° (2020)
Record low17° (2018)
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 Pottstown, IL 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 Pottstown, IL 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.