Slack, PA 14 Day Weather

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Slack PA Weather - FOG and MIST - 71°F
FOG and MIST
71°F
Updated 7:04 am
Feels Like 68°F
Humidity 96%
Wind N 6 mph
Barometer  30.03 in
Dew Point 70°F
Slack PA Weather - FOG and MIST - 22°C
FOG and MIST
22°C
Updated 7:04 am
Feels Like 20°C
Humidity 96%
Wind N 10 km/h
Barometer  101.7 kPa
Dew Point 21°C
Slack, PA Weather and Current Conditionsslack pa weather forecast

Slack, PA Weather Forecast

Slack Pennsylvania WeatherSlack, Pennsylvania Weather Weather Forecast
14 day API Slack weather forecast. Note. Our 7-day Slack weather forecast is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Slack, PA Weather Forecast Dated: 704 AM Fri Sep 18 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Friday, September 18, 2026

Mid-Morning
Slack Weather - 2026-09-18 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Slack Weather - 2026-09-18 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Slack Weather - 2026-09-18 - Evening - Sunny
73°F 23°C
Sunny
Warm and summery near 80°F 27°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NNW to the NNE at 8 mph 13 km/h.

Saturday, September 19, 2026

Mid-Morning
Slack Weather - 2026-09-19 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Slack Weather - 2026-09-19 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Slack Weather - 2026-09-19 - Evening - Overcast
66°F 19°C
Overcast
Comfortable with temperatures reaching 71°F 22°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and steady pressure.

Sunday, September 20, 2026

Mid-Morning
Slack Weather - 2026-09-20 - Morning - Light Showers
60°F 16°C
Light Showers
Mid-Afternoon
Slack Weather - 2026-09-20 - Afternoon - Scattered Showers
68°F 20°C
Scattered Showers
Early-Evening
Slack Weather - 2026-09-20 - Evening - Light Showers
67°F 20°C
Light Showers
Enjoyable around 68°F 20°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds switching from the SE to the NNW at 5 mph 7 km/h.

Monday, September 21, 2026

Mid-Morning
Slack Weather - 2026-09-21 - Morning - Light Showers
57°F 14°C
Light Showers
Mid-Afternoon
Slack Weather - 2026-09-21 - Afternoon - Light Showers
56°F 13°C
Light Showers
Early-Evening
Slack Weather - 2026-09-21 - Evening - Light Showers
57°F 14°C
Light Showers
Crisp with a high near 56°F 13°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds moving from the NNE to the NE at 8 mph 12 km/h. Gusts up to 23 mph 37 km/h.

Tuesday, September 22, 2026

Mid-Morning
Slack Weather - 2026-09-22 - Morning - Scattered Showers
58°F 14°C
Scattered Showers
Mid-Afternoon
Slack Weather - 2026-09-22 - Afternoon - Overcast
56°F 13°C
Overcast
Early-Evening
Slack Weather - 2026-09-22 - Evening - Overcast
58°F 14°C
Overcast
Brisk around 56°F 13°C, scattered downpours possible, with lower humidity and barometric pressure rising. Winds out of the ENE at 11 mph 17 km/h. Gusts up to 25 mph 40 km/h.

Wednesday, September 23, 2026

Mid-Morning
Slack Weather - 2026-09-23 - Morning - Overcast
56°F 13°C
Overcast
Mid-Afternoon
Slack Weather - 2026-09-23 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Slack Weather - 2026-09-23 - Evening - Cloudy
62°F 17°C
Cloudy
Mildly cool near 64°F 18°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the NE to the ENE at 9 mph 15 km/h.

Thursday, September 24, 2026

Mid-Morning
Slack Weather - 2026-09-24 - Morning - Partly Cloudy
56°F 13°C
Partly Cloudy
Mid-Afternoon
Slack Weather - 2026-09-24 - Afternoon - Cloudy
68°F 20°C
Cloudy
Early-Evening
Slack Weather - 2026-09-24 - Evening - Overcast
62°F 17°C
Overcast
Comfortable with temperatures reaching 68°F 20°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling.

Friday, September 25, 2026

Mid-Morning
Slack Weather - 2026-09-25 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Slack Weather - 2026-09-25 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Slack Weather - 2026-09-25 - Evening - Sunny
62°F 17°C
Sunny
Enjoyable around 71°F 22°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the W to the NW at 12 mph 19 km/h. Gusts up to 22 mph 36 km/h.

Saturday, September 26, 2026

Mid-Morning
Slack Weather - 2026-09-26 - Morning - Overcast
51°F 10°C
Overcast
Mid-Afternoon
Slack Weather - 2026-09-26 - Afternoon - Sunny
57°F 14°C
Sunny
Early-Evening
Slack Weather - 2026-09-26 - Evening - Sunny
55°F 13°C
Sunny
Brisk around 57°F 14°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds switching from the WNW to the NW at 9 mph 15 km/h. Gusts up to 23 mph 37 km/h.

Sunday, September 27, 2026

Mid-Morning
Slack Weather - 2026-09-27 - Morning - Sunny
51°F 10°C
Sunny
Mid-Afternoon
Slack Weather - 2026-09-27 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
Slack Weather - 2026-09-27 - Evening - Sunny
64°F 18°C
Sunny
Mildly cool near 67°F 20°C, sunny throughout the day, with lower humidity and steady pressure.

Monday, September 28, 2026

Mid-Morning
Slack Weather - 2026-09-28 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Slack Weather - 2026-09-28 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Slack Weather - 2026-09-28 - Evening - Sunny
68°F 20°C
Sunny
Pleasant near 73°F 23°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.

Tuesday, September 29, 2026

Mid-Morning
Slack Weather - 2026-09-29 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Slack Weather - 2026-09-29 - Afternoon - Overcast
75°F 24°C
Overcast
Early-Evening
Slack Weather - 2026-09-29 - Evening - Overcast
71°F 22°C
Overcast
Comfortable with temperatures reaching 75°F 24°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure.

Wednesday, September 30, 2026

Mid-Morning
Slack Weather - 2026-09-30 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Slack Weather - 2026-09-30 - Afternoon - Overcast
76°F 25°C
Overcast
Early-Evening
Slack Weather - 2026-09-30 - Evening - Overcast
73°F 23°C
Overcast
Enjoyable around 76°F 25°C, overcast throughout the day, with steady humidity and steady pressure.

Thursday, October 1, 2026

Mid-Morning
Slack Weather - 2026-10-01 - Morning - Scattered Showers
71°F 21°C
Scattered Showers
Mid-Afternoon
Slack Weather - 2026-10-01 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Slack Weather - 2026-10-01 - Evening - Sunny
73°F 23°C
Sunny
Mild temperatures up to 78°F 26°C, scattered downpours possible, with lower humidity and barometric pressure falling.

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Weather by the Numbers

Fri, 18th
Slack PA Weather - Friday, Sep 18, 2026 - Sunny
Hi: 80°F 27°C
Lo: 65°F 18°C
Sunrise 06:44 AM
Sunset 07:04 PM
Wind N 10 mph17 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 44%
Sat, 19th
Slack PA Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 71°F 22°C
Lo: 58°F 14°C
Sunrise 06:45 AM
Sunset 07:03 PM
Wind ENE 6 mph9 km/h
Dew Point 42°F5°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 10% *
Humidity 44%
Sun, 20th
Slack PA Weather - Sunday, Sep 20, 2026 - Patchy Rain Nearby
Hi: 70°F 21°C
Lo: 59°F 15°C
Sunrise 06:46 AM
Sunset 07:01 PM
Wind SSE 9 mph14 km/h
Dew Point 61°F16°C
uv Index 0
Barometric Pressure 30 in1016 mb
POP 36% *
Humidity 96%
Mon, 21st
Slack PA Weather - Monday, Sep 21, 2026 - Patchy Rain Nearby
Hi: 62°F 16°C
Lo: 56°F 13°C
Sunrise 06:47 AM
Sunset 06:59 PM
Wind NE 7 mph11 km/h
Dew Point 53°F12°C
uv Index 1
Barometric Pressure 30.09 in1019 mb
POP 30% *
Humidity 89%
Tue, 22nd
Slack PA Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 61°F 16°C
Lo: 53°F 12°C
Sunrise 06:48 AM
Sunset 06:57 PM
Wind ENE 15 mph23 km/h
Dew Point 56°F13°C
uv Index 3
Barometric Pressure 30.12 in1020 mb
POP 44% *
Humidity 94%
Wed, 23rd
Slack PA Weather - Wednesday, Sep 23, 2026 - Cloudy
Hi: 64°F 18°C
Lo: 55°F 13°C
Sunrise 06:49 AM
Sunset 06:56 PM
Wind NE 11 mph18 km/h
Dew Point 49°F9°C
uv Index 4
Barometric Pressure 30.39 in1029 mb
POP 15% *
Humidity 68%
Thu, 24th
Slack PA Weather - Thursday, Sep 24, 2026 - Cloudy
Hi: 68°F 20°C
Lo: 53°F 12°C
Sunrise 06:50 AM
Sunset 06:54 PM
Wind NE 5 mph9 km/h
Dew Point 48°F9°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 6% *
Humidity 58%
Fri, 25th
Slack PA Weather - Friday, Sep 25, 2026 - Sunny
Hi: 73°F 23°C
Lo: 55°F 13°C
Sunrise 06:51 AM
Sunset 06:52 PM
Wind WNW 13 mph21 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 55%
Sat, 26th
Slack PA Weather - Saturday, Sep 26, 2026 - Overcast
Hi: 58°F 14°C
Lo: 48°F 9°C
Sunrise 06:52 AM
Sunset 06:51 PM
Wind NW 13 mph21 km/h
Dew Point 37°F3°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 11% *
Humidity 49%
Sun, 27th
Slack PA Weather - Sunday, Sep 27, 2026 - Sunny
Hi: 68°F 20°C
Lo: 47°F 8°C
Sunrise 06:53 AM
Sunset 06:49 PM
Wind NNW 8 mph13 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 42%
Mon, 28th
Slack PA Weather - Monday, Sep 28, 2026 - Sunny
Hi: 73°F 23°C
Lo: 56°F 13°C
Sunrise 06:54 AM
Sunset 06:47 PM
Wind SW 5 mph9 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 37%
Tue, 29th
Slack PA Weather - Tuesday, Sep 29, 2026 - Partly Cloudy
Hi: 76°F 24°C
Lo: 58°F 14°C
Sunrise 06:55 AM
Sunset 06:46 PM
Wind SW 6 mph9 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 3% *
Humidity 48%
Wed, 30th
Slack PA Weather - Wednesday, Sep 30, 2026 - Overcast
Hi: 77°F 25°C
Lo: 63°F 17°C
Sunrise 06:56 AM
Sunset 06:44 PM
Wind SSW 4 mph7 km/h
Dew Point 59°F15°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 15% *
Humidity 61%
Thu, 1st
Slack PA Weather - Thursday, Oct 1, 2026 - Patchy Rain Nearby
Hi: 79°F 26°C
Lo: 67°F 20°C
Sunrise 06:57 AM
Sunset 06:42 PM
Wind SSE 6 mph10 km/h
Dew Point 62°F17°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 14% *
Humidity 60%
* POP = Probability of Precipitation. Data for 12:00 PM.