As of 02:48 EDT

Weather in Slackwater, PA

58°Current weather

Slackwater, Saturday, 17 October, 02:48

Rain. Feels like 57°. High 59°, low 42°.

Pressure29.94 inHg
Wind12.3 mph N
Humidity77%
Visibility6.2 mi
Dew point51°

Monthly outlook for Slackwater, PA: average high 60.9°, average low 44.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 28 October (68°), the coolest 18 October (36.2°).

60.9°/44.1°
Average high / low
+0.1°
Above normal
3 / 4
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October61.6°61.6°+0°
27 October – 5 November59.7°58.9°+0.5°
6 November – 15 Novemberat normal53.9°—

October records over 66 years

90.5°2 October 2019All-time high
27.7°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Lancaster (5 mi).

Sun, 1858° / 36°0Clear
58 °Clear

Slackwater, Sunday, 18 October

Clear. High 58°, low 36°.

Pressure30.59 inHg
Wind3.9 mph N
Humidity48%
Visibility6.2 mi
Dew point34°
Mon, 1966° / 41°0Clear
66 °Clear

Slackwater, Monday, 19 October

Clear. High 66°, low 41°.

Pressure30.45 inHg
Wind4.3 mph N
Humidity59%
Visibility6.2 mi
Dew point46°
Tue, 2067° / 48°0Clear
67 °Clear

Slackwater, Tuesday, 20 October

Clear. High 67°, low 48°.

Pressure30.27 inHg
Wind7.1 mph N
Humidity61%
Visibility6.2 mi
Dew point48°
Wed, 2163° / 47°0Clear
63 °Clear

Slackwater, Wednesday, 21 October

Clear. High 63°, low 47°.

Pressure30.30 inHg
Wind8.5 mph N
Humidity56%
Visibility—
Dew point40°
Thu, 2261° / 43°0Clear
61 °Clear

Slackwater, Thursday, 22 October

Clear. High 61°, low 43°.

Pressure30.18 inHg
Wind7.5 mph N
Humidity59%
Visibility—
Dew point39°
Fri, 2364° / 42°0Partly cloudy
64 °Partly cloudy

Slackwater, Friday, 23 October

Partly cloudy. High 64°, low 42°.

Pressure30.24 inHg
Wind9.5 mph N
Humidity50%
Visibility—
Dew point37°
Sat, 2458° / 41°0Clear
58 °Clear

Slackwater, Saturday, 24 October

Clear. High 58°, low 41°.

Pressure30.36 inHg
Wind10.6 mph NE
Humidity49%
Visibility—
Dew point33°
Sun, 2564° / 40°0Clear
64 °Clear

Slackwater, Sunday, 25 October

Clear. High 64°, low 40°.

Pressure30.18 inHg
Wind13.2 mph NW
Humidity48%
Visibility—
Dew point34°
Mon, 2655° / 40°0Overcast
55 °Overcast

Slackwater, Monday, 26 October

Overcast. High 55°, low 40°.

Pressure30.33 inHg
Wind17.1 mph NW
Humidity51%
Visibility—
Dew point30°
Tue, 2762° / 44°0Overcast
62 °Overcast

Slackwater, Tuesday, 27 October

Overcast. High 62°, low 44°.

Pressure30.33 inHg
Wind6.4 mph W
Humidity42%
Visibility—
Dew point31°
Wed, 2868° / 52°0.28Rain
68 °Rain

Slackwater, Wednesday, 28 October

Rain. High 68°, low 52°.

Pressure30.06 inHg
Wind8.6 mph W
Humidity73%
Visibility—
Dew point48°
Thu, 2962° / 46°0.01Light rain
62 °Light rain

Slackwater, Thursday, 29 October

Light rain. High 62°, low 46°.

Pressure30.09 inHg
Wind10.2 mph N
Humidity67%
Visibility—
Dew point45°
Fri, 3055° / 45°0Overcast
55 °Overcast

Slackwater, Friday, 30 October

Overcast. High 55°, low 45°.

Pressure30.03 inHg
Wind10.1 mph S
Humidity80%
Visibility—
Dew point47°
Sat, 3161° / 51°0.11Light rain
61 °Light rain

Slackwater, Saturday, 31 October

Light rain. High 61°, low 51°.

Pressure29.65 inHg
Wind13.9 mph NW
Humidity92%
Visibility—
Dew point53°
Sun, 0151° / 49°0.09Light rain
51 °Light rain

Slackwater, Sunday, 1 November

Light rain. High 51°, low 49°.

Pressure29.68 inHg
Wind18.7 mph NW
Humidity89%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0260° / 46°0.11Climate normal
60 °Climate normal

Slackwater, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°
Average low46°
Average precipitation0.11 in
Chance of precipitation28%
Record high78° (1971)
Record low31° (1965)
Tue, 0359° / 44°0.07Climate normal
59 °Climate normal

Slackwater, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation28%
Record high77° (2003)
Record low32° (1996)
Wed, 0457° / 43°0.07Climate normal
57 °Climate normal

Slackwater, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high57°
Average low43°
Average precipitation0.07 in
Chance of precipitation22%
Record high75° (1987)
Record low29° (2021)
Thu, 0557° / 43°0.1Climate normal
57 °Climate normal

Slackwater, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high57°
Average low43°
Average precipitation0.1 in
Chance of precipitation28%
Record high74° (1961)
Record low27° (1991)
Fri, 0656° / 42°0.07Climate normal
56 °Climate normal

Slackwater, Friday, 6 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.07 in
Chance of precipitation27%
Record high80° (2024)
Record low27° (2021)
Sat, 0755° / 42°0.07Climate normal
55 °Climate normal

Slackwater, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (2023)
Record low28° (2021)
Sun, 0855° / 41°0.15Climate normal
55 °Climate normal

Slackwater, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.15 in
Chance of precipitation18%
Record high74° (1975)
Record low27° (1960)
Mon, 0955° / 40°0.09Climate normal
55 °Climate normal

Slackwater, Monday, 9 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (1975)
Record low23° (2019)
Tue, 1056° / 41°0.16Climate normal
56 °Climate normal

Slackwater, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.16 in
Chance of precipitation38%
Record high73° (2020)
Record low26° (2017)
Wed, 1154° / 41°0.12Climate normal
54 °Climate normal

Slackwater, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.12 in
Chance of precipitation30%
Record high69° (2006)
Record low21° (2017)
Thu, 1252° / 39°0.18Climate normal
52 °Climate normal

Slackwater, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.18 in
Chance of precipitation37%
Record high71° (1964)
Record low26° (1987)
Fri, 1351° / 38°0.09Climate normal
51 °Climate normal

Slackwater, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation37%
Record high70° (1964)
Record low22° (2019)
Sat, 1452° / 38°0.07Climate normal
52 °Climate normal

Slackwater, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (1993)
Record low24° (1986)
Sun, 1553° / 38°0.1Climate normal
53 °Climate normal

Slackwater, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation37%
Record high73° (1993)
Record low25° (1967)

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.