Monthly outlook for Roundtop, PA: average high 56.1°, average low 38.4°. That is 0.1° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 13 October (76.2°), the coolest 20 October (24.2°).
56.1°/38.4°
Average high / low
+0.1°
Above normal
5 / 6
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
58.1°
56.9°
+0.7°
20 October – 29 October
52.7°
53.3°
-0.3°
30 October – 8 November
at normal
50.1°
—
October records over 66 years
81.3°1 October 2019All-time high
13.1°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Duncan (4 mi).
Sun, 1156° / 44°1.19
56 °
Roundtop, Sunday, 11 October
Rain. High 56°, low 44°.
Pressure30.21 inHg
Wind10 mph SE
Humidity98%
Visibility1.5 mi
Dew point53°
Mon, 1268° / 45°0.02
68 °
Roundtop, Monday, 12 October
Light rain. High 68°, low 45°.
Pressure29.88 inHg
Wind8.9 mph N
Humidity81%
Visibility6.2 mi
Dew point56°
Tue, 1376° / 55°0.12
76 °
Roundtop, Tuesday, 13 October
Rain. High 76°, low 55°.
Pressure29.83 inHg
Wind12.4 mph SW
Humidity69%
Visibility6.2 mi
Dew point60°
Wed, 1471° / 59°0.07
71 °
Roundtop, Wednesday, 14 October
Light rain. High 71°, low 59°.
Pressure29.91 inHg
Wind9.9 mph NW
Humidity72%
Visibility6.2 mi
Dew point60°
Thu, 1554° / 44°0.02
54 °
Roundtop, Thursday, 15 October
Light rain. High 54°, low 44°.
Pressure30.30 inHg
Wind11.2 mph N
Humidity78%
Visibility—
Dew point44°
Fri, 1660° / 44°0.52
60 °
Roundtop, Friday, 16 October
Rain. High 60°, low 44°.
Pressure29.94 inHg
Wind11.8 mph SW
Humidity96%
Visibility—
Dew point47°
Sat, 1752° / 35°0.04
52 °
Roundtop, Saturday, 17 October
Light rain. High 52°, low 35°.
Pressure29.91 inHg
Wind10.3 mph W
Humidity84%
Visibility—
Dew point42°
Sun, 1838° / 28°0
38 °
Roundtop, Sunday, 18 October
Overcast. High 38°, low 28°.
Pressure30.15 inHg
Wind14.4 mph NW
Humidity69%
Visibility—
Dew point28°
Mon, 1942° / 25°0
42 °
Roundtop, Monday, 19 October
Clear. High 42°, low 25°.
Pressure30.62 inHg
Wind12.8 mph N
Humidity49%
Visibility—
Dew point19°
Tue, 2047° / 24°0
47 °
Roundtop, Tuesday, 20 October
Overcast. High 47°, low 24°.
Pressure30.62 inHg
Wind2.5 mph NE
Humidity42%
Visibility—
Dew point17°
Wed, 2152° / 30°0
52 °
Roundtop, Wednesday, 21 October
Clear. High 52°, low 30°.
Pressure30.50 inHg
Wind5.7 mph S
Humidity44%
Visibility—
Dew point23°
Thu, 2253° / 32°0
53 °
Roundtop, Thursday, 22 October
Mostly clear. High 53°, low 32°.
Pressure30.56 inHg
Wind9.4 mph S
Humidity49%
Visibility—
Dew point28°
Fri, 2353° / 34°0
53 °
Roundtop, Friday, 23 October
Clear. High 53°, low 34°.
Pressure30.42 inHg
Wind9.7 mph S
Humidity69%
Visibility—
Dew point37°
Sat, 2456° / 38°0
56 °
Roundtop, Saturday, 24 October
Overcast. High 56°, low 38°.
Pressure30.33 inHg
Wind6 mph E
Humidity67%
Visibility—
Dew point38°
Sun, 2555° / 38°0
55 °
Roundtop, Sunday, 25 October
Overcast. High 55°, low 38°.
Pressure30.24 inHg
Wind6.7 mph SE
Humidity55%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2652° / 39°0.08
52 °
Roundtop, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.08 in
Chance of precipitation37%
Record high76° (1963)
Record low27° (1972)
Tue, 2753° / 39°0.13
53 °
Roundtop, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation30%
Record high74° (1963)
Record low25° (1976)
Wed, 2853° / 37°0.1
53 °
Roundtop, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.1 in
Chance of precipitation33%
Record high71° (1984)
Record low23° (1976)
Thu, 2950° / 36°0.15
50 °
Roundtop, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.15 in
Chance of precipitation32%
Record high67° (1989)
Record low24° (1965)
Fri, 3051° / 36°0.1
51 °
Roundtop, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation27%
Record high71° (2024)
Record low26° (1983)
Sat, 3151° / 37°0.1
51 °
Roundtop, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation25%
Record high73° (2024)
Record low19° (2002)
Sun, 0152° / 38°0.1
52 °
Roundtop, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation33%
Record high69° (1974)
Record low26° (2023)
Mon, 0252° / 38°0.12
52 °
Roundtop, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.12 in
Chance of precipitation37%
Record high71° (1982)
Record low20° (1993)
Tue, 0352° / 37°0.06
52 °
Roundtop, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation33%
Record high69° (2015)
Record low26° (1984)
Wed, 0449° / 36°0.1
49 °
Roundtop, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation27%
Record high69° (2003)
Record low23° (1991)
Thu, 0549° / 36°0.08
49 °
Roundtop, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation40%
Record high68° (2022)
Record low19° (1991)
Fri, 0649° / 36°0.07
49 °
Roundtop, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (2022)
Record low25° (1995)
Sat, 0747° / 34°0.08
47 °
Roundtop, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation38%
Record high67° (2020)
Record low17° (1962)
Sun, 0848° / 34°0.11
48 °
Roundtop, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.11 in
Chance of precipitation25%
Record high69° (2020)
Record low20° (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 Roundtop, 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 Roundtop, 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.