Weather forecast for 10 days
Newcastle, WY

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:12 am

8:44 pm
MDT
Sunny
90°F / 55°F
  • Wind: 14mph SSW
  • Humidity: 28%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 8
On Saturday, June 21, clear and sunny conditions are expected.
Rainfall is not anticipated. Temperature fluctuations will be substantial, ranging from a peak of a hot 89.6°F to a low of a moderate 55.4°F.
With a forecast of 89.6°F, the day’s weather feels closer to July than June.
Sunrise will be at 5:12 am and sunset at 8:44 pm; the daylight will last for 15h and 32min.

Sunday, Jun 22.

Mostly Sunny
5:13 am

8:44 pm
MDT
Mostly Sunny
77°F / 48°F
  • Wind: 12mph NW
  • Humidity: 39%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 8
On Sunday, in Newcastle, a bright and mostly cloud-free sky is in store.
Rainfall is not forecasted. Significant temperature variations are expected, soaring to a maximum of a warm 77°F and descending to a minimum of a frosty 48.2°F.
The forecast high of 77°F is more in line with July's average of 79.2°F than June's 70.9°F.
Sunrise will be at 5:13 am and sunset at 8:44 pm; the daylight will last for 15h and 31min.

Frequently asked questions

What is the weather forecast for Newcastle for Saturday?
On Saturday, in Newcastle, the forecast calls for abundant sunshine.
Will it rain on Saturday?
No, it will not rain on Saturday.
What will be the maximum temperature on Saturday?
On Saturday, the maximum temperature will be 89.6°F, while the minimum temperature will be 55.4°F.
What is the weather forecast for Newcastle for Sunday?
On Sunday, in Newcastle, bright conditions and mild breezes are expected.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 77°F, while the lowest temperature will be 48.2°F.
What is the weather forecast for Newcastle for the next ten days?
In Newcastle, a combination of mostly clear, lightning-active and cloudy weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is forecasted for Monday, Tuesday, next Tuesday and Wednesday in Newcastle. With increased precipitation of 1.18", Monday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 66.2°F and 89.6°F, as the minimum temperature will vary between 48.2°F and 62.6°F.
What will be the hottest and the coldest days?
With a maximum temperature of 89.6°F, Friday and Saturday will be the hottest days. The coldest day will be tomorrow, with a maximum of 66.2°F.

Long-term weather forecast

MonJun 16.
  • 79°F
  • 54°F
Heavy Thunderstorms
Heavy Thunderstorms
  • Wind: 10mph SW
  • Humidity: 41%
  • UV index: 8
  • Precip. probability: 100%
  • Precipitation: 1.18"
  • 5:12 am 8:43 pm MDT
TueJun 17.
  • 66°F
  • 50°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 8mph NW
  • Humidity: 67%
  • UV index: 5
  • Precip. probability: 52%
  • Precipitation: 0.35"
  • 5:12 am 8:43 pm MDT
WedJun 18.
  • 79°F
  • 57°F
Sunny
Sunny
  • Wind: 7mph WSW
  • Humidity: 46%
  • UV index: 8
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:12 am 8:43 pm MDT
ThuJun 19.
  • 88°F
  • 63°F
Sunny
Sunny
  • Wind: 8mph S
  • Humidity: 33%
  • UV index: 8
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:12 am 8:44 pm MDT
FriJun 20.
  • 90°F
  • 61°F
Sunny
Sunny
  • Wind: 11mph SSW
  • Humidity: 33%
  • UV index: 8
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:12 am 8:44 pm MDT
SatJun 21.
  • 90°F
  • 55°F
Sunny
Sunny
  • Wind: 14mph SSW
  • Humidity: 28%
  • UV index: 8
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:12 am 8:44 pm MDT
SunJun 22.
  • 77°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph NW
  • Humidity: 39%
  • UV index: 8
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:13 am 8:44 pm MDT
MonJun 23.
  • 68°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SSE
  • Humidity: 51%
  • UV index: 8
  • Precip. probability: 20%
  • Precipitation: 0"
  • 5:13 am 8:44 pm MDT
TueJun 24.
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SSE
  • Humidity: 50%
  • UV index: 8
  • Precip. probability: 13%
  • Precipitation: 0.12"
  • 5:13 am 8:44 pm MDT
WedJun 25.
  • 72°F
  • 52°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 10mph SSE
  • Humidity: 55%
  • UV index: 8
  • Precip. probability: 36%
  • Precipitation: 0.08"
  • 5:14 am 8:45 pm MDT
For the next ten days, a combination of clear, thunderstorm-prone and overcast weather is expected.
Rainfall is anticipated on Monday, Tuesday, next Tuesday and Wednesday.
There will be a considerable variation in temperature over the next several days. Maximum temperatures are forecasted between 66.2°F and 89.6°F, while the difference in minimum temperatures will be also substantial, as the lowest temperatures will be recorded between 48.2°F and 62.6°F.
With a maximum temperature of 89.6°F, Friday and Saturday will be the hottest days in Newcastle; Tuesday will be the coldest day, with the highest temperature of 66.2°F.
Updated: Jun 16, 2025 @ 18:58:43 UTC
Published by: Weather U.S. | About Us
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