Weather forecast for 10 days
New Castle Northwest, PA

Weather forecast for the weekend

Sunday, May 4.

Thunderstorms
6:13 am

8:22 pm
EDT
Thunderstorms
68°F / 54°F
  • Wind: 6mph E
  • Humidity: 88%
  • Precip. probability: 91%
  • Precipitation: 1.61"
  • UV index: 5
On Sunday, May 4, moderate to strong thunderstorms are in the outlook.
Intense precipitation of 1.61" is anticipated for today. Slight temperature shifts from a high of a pleasant 68°F to a low of a crisp 53.6°F are expected.
Sunrise will be at 6:13 am and sunset at 8:22 pm; the daylight will last for 14h and 10min.

Frequently asked questions

What is the weather forecast for New Castle Northwest for the next ten days?
In New Castle Northwest, weather will be unstable, and a combination of dull, showery, mostly clear and lightning-active weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is forecasted for Sunday through Tuesday in New Castle Northwest. With intense precipitation of 1.61", Sunday will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 62.6°F and 77°F, as the minimum temperature will range between 42.8°F and 57.2°F.
What will be the warmest and the coldest days?
The warmest days will be next Sunday and Monday, with a maximum of 77°F. With a maximum temperature of 62.6°F, Tuesday will be the coldest day.

Long-term weather forecast

SunMay 4.
  • 68°F
  • 54°F
Thunderstorms
Thunderstorms
  • Wind: 6mph E
  • Humidity: 88%
  • UV index: 5
  • Precip. probability: 91%
  • Precipitation: 1.61"
  • 6:13 am 8:22 pm EDT
MonMay 5.
  • 72°F
  • 52°F
AM Showers
AM Showers
  • Wind: 6mph ESE
  • Humidity: 76%
  • UV index: 6
  • Precip. probability: 40%
  • Precipitation: 0.31"
  • 6:12 am 8:24 pm EDT
TueMay 6.
  • 63°F
  • 48°F
Showers
Showers
  • Wind: 7mph SW
  • Humidity: 76%
  • UV index: 5
  • Precip. probability: 66%
  • Precipitation: 0.2"
  • 6:10 am 8:25 pm EDT
WedMay 7.
  • 70°F
  • 50°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph WNW
  • Humidity: 70%
  • UV index: 6
  • Precip. probability: 17%
  • Precipitation: 0"
  • 6:09 am 8:26 pm EDT
ThuMay 8.
  • 68°F
  • 43°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Wind: 10mph N
  • Humidity: 63%
  • UV index: 8
  • Precip. probability: 15%
  • Precipitation: 0"
  • 6:08 am 8:27 pm EDT
FriMay 9.
  • 68°F
  • 43°F
Sunny
Sunny
  • Wind: 9mph NNE
  • Humidity: 43%
  • UV index: 8
  • Precip. probability: 6%
  • Precipitation: 0"
  • 6:07 am 8:28 pm EDT
SatMay 10.
  • 75°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph NNW
  • Humidity: 42%
  • UV index: 8
  • Precip. probability: 5%
  • Precipitation: 0"
  • 6:06 am 8:29 pm EDT
SunMay 11.
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph N
  • Humidity: 48%
  • UV index: 8
  • Precip. probability: 15%
  • Precipitation: 0"
  • 6:05 am 8:30 pm EDT
MonMay 12.
  • 77°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SW
  • Humidity: 48%
  • UV index: 8
  • Precip. probability: 5%
  • Precipitation: 0"
  • 6:04 am 8:31 pm EDT
TueMay 13.
  • 75°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SSW
  • Humidity: 54%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:03 am 8:32 pm EDT
And a mix of overcast, rainy, sunny and lightning-active weather is anticipated.
Rainfall is predicted for Sunday through Tuesday.
Significant changes in temperature are expected over the next several days. Highs will range from 62.6°F to 77°F, while the nightly low temperatures will show also a considerable swing, as the overnight lows will vary from 42.8°F to 57.2°F.
Next Sunday and Monday, with the highest temperature of 77°F, will be the warmest days in New Castle Northwest; Tuesday will be the coldest day, with the highest temperature of 62.6°F.
Updated: May 4, 2025 @ 08:39:07 UTC
Published by: Weather U.S. | About Us
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