Pennsylvania weather outlook for the next 7 days
From Oct 29 to Nov 4, temperatures in Pennsylvania will range from 43° to 70°. The hottest day is today (Oct 29), with a high of 70°; the coolest night is Sunday, Nov 1, dipping to around 43°. Overall, daytime temperatures should stay fairly steady from day to day.
Little to no rain is expected over the next 7 days (the daily chance of rain stays at or below 5%), so conditions should be mostly dry.
The windiest day is Wednesday, Nov 4, with average speeds of about 13 mph and gusts of up to 30 mph. The UV index peaks at 3.4 (moderate) tomorrow (Oct 30). Average daily humidity ranges from 55% to 77%.
- Chilly nights and early mornings: bring a jacket and dress in layers.
Frequently asked questions about the weather in Pennsylvania
Will it rain in Pennsylvania in the next 24 hours?
The chance of rain in Pennsylvania over the next 24 hours is low, peaking at only about 0% at 7:00 AM. It should be fine for outdoor plans.
What is the weather in Pennsylvania tomorrow?
Tomorrow (Friday, Oct 30), Pennsylvania will see clear sky, with temperatures from 49° to 69°, a 0% chance of rain, humidity around 55% and winds of 11 mph. Cool weather, bring a jacket.
Which day will be hottest in Pennsylvania this week?
According to the forecast, today (Oct 29) will be the hottest day, with a high of about 70°. The coolest is Sunday, Nov 1, with a low of about 43°.
Which day is best for going out or outdoor activities in Pennsylvania?
Today (Oct 29) is the best day of the next 7: clear sky, 47° to 70°, with a 0% chance of rain. Go in the morning or late afternoon to avoid the strongest sun.
Is this forecast accurate for every part of Pennsylvania?
The forecast is calculated for a representative point in Pennsylvania. In mountain and coastal areas, or during showers and thunderstorms, conditions can vary a lot from place to place. For tornadoes, hurricanes, floods and winter storms, always follow the official National Weather Service warnings.
Day by day in Pennsylvania
| Day | Weather | High / Low | Rain | Wind | Heat index / wind chill |
|---|---|---|---|---|---|
| Today |  Clear sky |
70° / 47° | 0% · 0 in | 7 mph | 71° · Not hazardous |
| Tomorrow | Clear sky |
69° / 49° | 0% · 0 in | 11 mph | 68° · Not hazardous |
| Sat, Oct 31 |  Broken clouds |
58° / 43° | 0% · 0 in | 7 mph | 56° · Not hazardous |
| Sun, Nov 1 |  Scattered clouds |
61° / 43° | 0% · 0 in | 3 mph | 60° · Not hazardous |
| Mon, Nov 2 | Broken clouds |
67° / 44° | 0% · 0 in | 5 mph | 66° · Not hazardous |
| Tue, Nov 3 | Broken clouds |
67° / 46° | 0% · 0 in | 7 mph | 66° · Not hazardous |
| Wed, Nov 4 | Scattered clouds |
70° / 52° | 0% · 0 in | 13 mph | 70° · Not hazardous |
About the heat index and wind chill
The heat index is how hot it really feels when humidity is combined with the air temperature. The National Weather Service uses these levels: 80–90 °F caution, 90–103 °F extreme caution, 103–124 °F danger and 125 °F or more extreme danger. At "danger" level, heat cramps and heat exhaustion are likely with prolonged activity outdoors — drink water often, rest in the shade or air conditioning and avoid strenuous work in the afternoon.
The wind chill is how cold it feels on exposed skin when wind is combined with cold air (it applies at 50 °F and below). At a wind chill of −18 °F frostbite can develop in 30 minutes, at −35 °F in 10 minutes: cover your skin, wear layers, a hat and gloves.