Harleysville, PA Weather Forecast
Local 7-day forecast
Areas Of Smoke then Patchy Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Harleysville, PA in one place.
Areas of smoke and a chance of rain showers before 8am, then areas of smoke and a chance of showers and thunderstorms between 8am and 9am, then areas of smoke and showers and thunderstorms likely between 9am and 11am, then patchy smoke and showers and thunderstorms. Mostly cloudy, with a high near 83. South wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Harleysville, 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 17, 2026 8:19 AM EDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Harleysville, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 8:19 AM EDT
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Harleysville
Tuesday looks like the warmest upcoming period in Harleysville at 86 degrees F.
Sunday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 8:19 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- PHI
- Radar station
- KDIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunny, with a high near 81. Northwest wind around 10 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 61.
Sunny, with a high near 82.
Partly cloudy, with a low around 65.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 80%.
A chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 62.
Sunny, with a high near 82.
Mostly clear, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Areas Of Smoke then Patchy Smoke
|
83°F |
5 to 10 mph
S
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
70°F |
10 mph
SW
|
|
Sunday
Jul 19
|
Sunny
|
81°F |
10 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
61°F |
0 to 5 mph
N
|
|
Monday
Jul 20
|
Sunny
|
82°F |
0 to 5 mph
SE
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
65°F |
0 to 5 mph
S
|
|
Tuesday
Jul 21
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
5 to 10 mph
S
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
70°F |
5 to 10 mph
SW
|
|
Wednesday
Jul 22
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
85°F |
10 mph
W
|
|
Wednesday Night
Jul 22
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
62°F |
5 to 10 mph
NW
|
|
Thursday
Jul 23
|
Sunny
|
82°F |
5 mph
NW
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
63°F |
0 to 5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harleysville.
