Monthly outlook for Slackwater, PA: average high 58°, average low 42°. That is 2.7° above the climate normal for November. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 6 November (72.9°), the coolest 13 November (27.4°).
58°/42°
Average high / low
+2.7°
Above normal
1 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
57.7°
54.3°
+1.9°
15 November – 24 November
58.5°
50.5°
+4.5°
25 November – 4 December
at normal
47.9°
—
November records over 66 years
79.5°6 November 2024All-time high
13.1°24 November 1989All-time low
Climate normals and records are computed from the nearest reference point — Lancaster (5 mi).
Fri, 0673° / 58°0
73 °
Slackwater, Friday, 6 November
Clear. High 73°, low 58°.
Pressure29.88 inHg
Wind4.3 mph NW
Humidity59%
Visibility6.2 mi
Dew point53°
Sat, 0758° / 48°0
58 °
Slackwater, Saturday, 7 November
Clear. High 58°, low 48°.
Pressure29.94 inHg
Wind12.2 mph NW
Humidity53%
Visibility6.2 mi
Dew point37°
Sun, 0858° / 49°0
58 °
Slackwater, Sunday, 8 November
Partly cloudy. High 58°, low 49°.
Pressure29.97 inHg
Wind10.8 mph W
Humidity54%
Visibility6.2 mi
Dew point40°
Mon, 0957° / 48°0
57 °
Slackwater, Monday, 9 November
Overcast. High 57°, low 48°.
Pressure29.94 inHg
Wind17.7 mph NW
Humidity50%
Visibility6.2 mi
Dew point37°
Tue, 1063° / 43°0
63 °
Slackwater, Tuesday, 10 November
Partly cloudy. High 63°, low 43°.
Pressure30.03 inHg
Wind11.9 mph SW
Humidity57%
Visibility—
Dew point39°
Wed, 1160° / 44°0
60 °
Slackwater, Wednesday, 11 November
Partly cloudy. High 60°, low 44°.
Pressure29.85 inHg
Wind11.5 mph W
Humidity63%
Visibility—
Dew point42°
Thu, 1246° / 32°0
46 °
Slackwater, Thursday, 12 November
Mostly clear. High 46°, low 32°.
Pressure29.97 inHg
Wind12.7 mph NW
Humidity51%
Visibility—
Dew point24°
Fri, 1344° / 27°0
44 °
Slackwater, Friday, 13 November
Light rain. High 44°, low 27°.
Pressure29.94 inHg
Wind11.6 mph NW
Humidity53%
Visibility—
Dew point22°
Sat, 1445° / 30°0
45 °
Slackwater, Saturday, 14 November
Clear. High 45°, low 30°.
Pressure30.00 inHg
Wind15.3 mph NW
Humidity58%
Visibility—
Dew point26°
Sun, 1552° / 32°0
52 °
Slackwater, Sunday, 15 November
Clear. High 52°, low 32°.
Pressure30.24 inHg
Wind12.2 mph W
Humidity62%
Visibility—
Dew point32°
Mon, 1657° / 35°0
57 °
Slackwater, Monday, 16 November
Clear. High 57°, low 35°.
Pressure30.30 inHg
Wind6.9 mph W
Humidity51%
Visibility—
Dew point30°
Tue, 1757° / 38°0
57 °
Slackwater, Tuesday, 17 November
Overcast. High 57°, low 38°.
Pressure30.15 inHg
Wind6.6 mph NW
Humidity49%
Visibility—
Dew point30°
Wed, 1859° / 38°0
59 °
Slackwater, Wednesday, 18 November
Clear. High 59°, low 38°.
Pressure30.15 inHg
Wind10.2 mph NW
Humidity59%
Visibility—
Dew point36°
Thu, 1963° / 41°0
63 °
Slackwater, Thursday, 19 November
Overcast. High 63°, low 41°.
Pressure30.33 inHg
Wind8.7 mph SW
Humidity59%
Visibility—
Dew point37°
Fri, 2064° / 44°0
64 °
Slackwater, Friday, 20 November
Overcast. High 64°, low 44°.
Pressure30.15 inHg
Wind12.8 mph W
Humidity46%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2150° / 36°0.09
50 °
Slackwater, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation28%
Record high67° (1991)
Record low22° (1987)
Sun, 2249° / 36°0.12
49 °
Slackwater, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation32%
Record high69° (2007)
Record low20° (2018)
Mon, 2349° / 35°0.06
49 °
Slackwater, Monday, 23 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high67° (1979)
Record low18° (2018)
Tue, 2449° / 36°0.13
49 °
Slackwater, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation30%
Record high67° (2014)
Record low13° (1989)
Wed, 2549° / 35°0.12
49 °
Slackwater, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.12 in
Chance of precipitation38%
Record high69° (1979)
Record low19° (1989)
Thu, 2651° / 36°0.15
51 °
Slackwater, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.15 in
Chance of precipitation37%
Record high66° (1999)
Record low25° (2005)
Fri, 2749° / 36°0.09
49 °
Slackwater, Friday, 27 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high64° (1976)
Record low22° (2014)
Sat, 2850° / 37°0.17
50 °
Slackwater, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.17 in
Chance of precipitation32%
Record high66° (1990)
Record low21° (2014)
Sun, 2948° / 35°0.14
48 °
Slackwater, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.14 in
Chance of precipitation30%
Record high65° (1990)
Record low23° (2023)
Mon, 3047° / 35°0.11
47 °
Slackwater, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.11 in
Chance of precipitation33%
Record high66° (2001)
Record low19° (1976)
Tue, 0147° / 34°0.11
47 °
Slackwater, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.11 in
Chance of precipitation37%
Record high69° (2006)
Record low14° (1967)
Wed, 0246° / 33°0.1
46 °
Slackwater, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation25%
Record high62° (2023)
Record low4° (1967)
Thu, 0346° / 33°0.11
46 °
Slackwater, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation22%
Record high67° (1998)
Record low15° (1976)
Fri, 0446° / 33°0.1
46 °
Slackwater, Friday, 4 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation23%
Record high71° (1982)
Record low14° (1966)
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 Slackwater, 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 Slackwater, 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.