Harristown, PA Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Harristown, PA in one place.
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Heat index values as high as 100. West wind 5 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Harristown, 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: Jun 9, 2026 10:02 PM EDT.
The active forecast window currently covers Jun 11 to Jun 16, 2026 for Harristown, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 11 to Jun 16, 2026
- Latest sync
- Jun 9, 2026 10:02 PM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Harristown
Thursday looks like the warmest upcoming period in Harristown at 92 degrees F.
Monday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Sunday at about 1 to 10 mph W.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 10:02 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KDOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. West wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Mostly sunny, with a high near 86.
Mostly clear, with a low around 64.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 89.
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
A chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jun 11
|
Partly Sunny then Chance Showers And Thunderstorms
|
92°F |
5 to 9 mph
W
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
71°F |
3 to 7 mph
W
|
|
Friday
Jun 12
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
3 to 8 mph
W
|
|
Friday Night
Jun 12
|
Chance Showers And Thunderstorms
|
66°F |
8 mph
W
|
|
Saturday
Jun 13
|
Mostly Sunny
|
86°F |
9 mph
NW
|
|
Saturday Night
Jun 13
|
Mostly Clear
|
64°F |
1 to 8 mph
NW
|
|
Sunday
Jun 14
|
Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
1 to 10 mph
W
|
|
Sunday Night
Jun 14
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
66°F |
5 to 10 mph
S
|
|
Monday
Jun 15
|
Chance Rain Showers
|
85°F |
5 to 9 mph
SW
|
|
Monday Night
Jun 15
|
Chance Showers And Thunderstorms
|
63°F |
6 to 9 mph
S
|
|
Tuesday
Jun 16
|
Chance Showers And Thunderstorms
|
82°F |
6 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harristown.