Winterstown, PA Weather Forecast

Local 7-day forecast

71°

Smoke

Track current conditions, temperature changes, wind, and the full daily outlook for Winterstown, PA in one place.

Saturday, July 18, 2026

Wind: 3 to 8 mph S

Overnight

Smoke before 5am, then smoke and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind 3 to 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Local 7-day forecast

Local Weather Overview

This forecast page for Winterstown, PA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 18, 2026 2:53 AM EDT.

The active forecast window currently covers Jul 18 to Jul 24, 2026 for Winterstown, PA.

Page Snapshot

Page focus: city weather
Forecast window: Jul 18 to Jul 24, 2026
Latest sync: Jul 18, 2026 2:53 AM EDT
Forecast office: CTP
Source: NOAA / NWS

Next High

88°F

Saturday

Next Low

71°F

Overnight

Rain Outlook

Periods mentioning precipitation

Windiest

13 mph

Wednesday

Daily Outlook

Today

Jul 18

Smoke

88 °F

/ 71°F

Wind 8 to 12 mph

Sun

Jul 19

Sunny

81 °F

/ 60°F

Wind 10 mph

Mon

Jul 20

Sunny

82 °F

/ 66°F

Wind 3 to 7 mph

Tue

Jul 21

Showers And Thunderstorms Likely

85 °F

/ 68°F

Wind 8 to 12 mph

Wed

Jul 22

Chance Rain Showers then Chance Showers And Thunderstorms

82 °F

/ 60°F

Wind 13 mph

Thu

Jul 23

Sunny

80 °F

/ 61°F

Wind 9 mph

Fri

Jul 24

Mostly Sunny

82 °F

Wind 5 mph

This Week in Winterstown

Saturday looks like the warmest upcoming period in Winterstown at 88 degrees F.

Sunday Night is the coolest period ahead with temperatures near 60 degrees F.

The strongest winds are forecast for Wednesday at about 13 mph W.

Precipitation is mentioned in 8 upcoming forecast periods.

Forecast Details

Last updated: Jul 18, 2026 2:53 AM EDT
Coverage: 7 days
Time zone: America/New_York
Forecast office: CTP
Radar station: KLWX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Saturday

Jul 18

88°F

Smoke

8 to 12 mph SW

Smoke and a slight chance of showers and thunderstorms before 1pm, then patchy smoke and showers and thunderstorms likely between 1pm and 3pm, then patchy smoke and showers and thunderstorms between 3pm and 4pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 88. Southwest wind 8 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Jul 18

68°F

Chance Showers And Thunderstorms

10 mph W

A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely between 8pm and 9pm, then a chance of showers and thunderstorms between 9pm and 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then a slight chance of showers and thunderstorms between midnight and 2am. Mostly cloudy, with a low around 68. West wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Jul 19

81°F

Sunny

10 mph NW

Sunny, with a high near 81. Northwest wind around 10 mph.

Sunday Night

Jul 19

60°F

Mostly Clear

2 to 7 mph NE

Mostly clear, with a low around 60. Northeast wind 2 to 7 mph.

Monday

Jul 20

82°F

Sunny

3 to 7 mph E

Sunny, with a high near 82.

Monday Night

Jul 20

66°F

Mostly Cloudy then Chance Showers And Thunderstorms

9 mph SE

A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

Tuesday

Jul 21

85°F

Showers And Thunderstorms Likely

8 to 12 mph S

Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.

Tuesday Night

Jul 21

68°F

Showers And Thunderstorms

12 mph SW

Showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 80%.

Wednesday

Jul 22

82°F

Chance Rain Showers then Chance Showers And Thunderstorms

13 mph W

A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 40%.

Wednesday Night

Jul 22

60°F

Chance Showers And Thunderstorms then Partly Cloudy

7 to 10 mph NW

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

Thursday

Jul 23

80°F

Sunny

9 mph NW

Sunny, with a high near 80.

Thursday Night

Jul 23

61°F

Mostly Clear

2 to 6 mph NW

Mostly clear, with a low around 61.

Friday

Jul 24

82°F

Mostly Sunny

5 mph W

Mostly sunny, with a high near 82.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Overnight Jul 18	Smoke	71°F	3 to 8 mph S	Smoke before 5am, then smoke and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Sout...
Saturday Jul 18	Smoke	88°F	8 to 12 mph SW	Smoke and a slight chance of showers and thunderstorms before 1pm, then patchy smoke and showers and thunderstorms likel...
Saturday Night Jul 18	Chance Showers And Thunderstorms	68°F	10 mph W	A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely between 8pm and 9pm, then a chan...
Sunday Jul 19	Sunny	81°F	10 mph NW	Sunny, with a high near 81. Northwest wind around 10 mph.
Sunday Night Jul 19	Mostly Clear	60°F	2 to 7 mph NE	Mostly clear, with a low around 60. Northeast wind 2 to 7 mph.
Monday Jul 20	Sunny	82°F	3 to 7 mph E	Sunny, with a high near 82.
Monday Night Jul 20	Mostly Cloudy then Chance Showers And Thunderstorms	66°F	9 mph SE	A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Tuesday Jul 21	Showers And Thunderstorms Likely	85°F	8 to 12 mph S	Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Tuesday Night Jul 21	Showers And Thunderstorms	68°F	12 mph SW	Showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 80%.
Wednesday Jul 22	Chance Rain Showers then Chance Showers And Thunderstorms	82°F	13 mph W	A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chan...
Wednesday Night Jul 22	Chance Showers And Thunderstorms then Partly Cloudy	60°F	7 to 10 mph NW	A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday Jul 23	Sunny	80°F	9 mph NW	Sunny, with a high near 80.
Thursday Night Jul 23	Mostly Clear	61°F	2 to 6 mph NW	Mostly clear, with a low around 61.
Friday Jul 24	Mostly Sunny	82°F	5 mph W	Mostly sunny, with a high near 82.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Winterstown.

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Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.