Weather forecast for todayNewcastle, WY

Weather forecast for today

Current condition 4:01 am MDT

  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 7mphE 100°
  • Humidity: 54%
  • Dewpoint: 32°F
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, in Newcastle, a deep blue sky remains clear and cloudless.
The temperature is a chilly 48.2°F, and the felt air temperature is estimated at a brisk 44.6°F. The current temperature is far from today's maximum-forecasted 69.8°F.

Tuesday Oct 20, 2026

  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 177°
  • Humidity: 45%
  • UV index: 3
  • Sunrise: 7:17 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
Today, in Newcastle, sunny conditions are expected to continue.
The daytime temperature will peak at a pleasant 69.8°F, significantly contrasting with the night's low of a cold 41°F.
Temperatures are higher than average, more in line with September's norm of 68.5°F than with October's 50°F.
Sunrise will be at 7:17 am and sunset at 6:05 pm; the daylight will last for 10h and 47min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 70°C.
Coldest hour: 7 am 45°C.

Chance of precipitation

Highest chance: 1%.

Hourly weather forecast

  • 6 am
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphENE 65°
  • Humidity: 61%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:17 am
  • 8 am
  • 45°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphENE 74°
  • Humidity: 64%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphS 176°
  • Humidity: 45%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 193°
  • Humidity: 40%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSW 233°
  • Humidity: 34%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphW 279°
  • Humidity: 30%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNW 317°
  • Humidity: 37%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:05 pm
  • 8 pm
  • 55°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 22°
  • Humidity: 47%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphNNE 24°
  • Humidity: 52%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Newcastle, mostly cloudless and sunny weather is anticipated.
The temperature will be between a maximum of 69.8°F and a minimum of 44.6°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will align more closely with September's average high of 68.5°F than with October's 50°F. The expected low will be also more comparable to what’s typical in September than in October.
Updated: Oct 20, 2026 @ 10:01:33 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 4:01 am MDT, the temperature is 48.2°F.

On Tuesday, in Newcastle, sunny conditions are expected to continue.

Today, the highest temperature will be 69.8°F, while the lowest temperature will be 41°F.
The highest temperature will be notably higher than the average maximum of 50°F in October. The lowest temperature will be slightly warmer than the average low of 32.9°F.

On Tuesday, in Newcastle, sunrise will be at 7:17 am and sunset at 6:05 pm (MDT).

In Newcastle, Wyoming, the length of the day today will be 10h and 47min.