Weather forecast for 10 daysNew Castle, CO
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 45°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphWNW 293°
- Humidity: 40%
- UV index: 4
- Sunrise: 7:23 am MDT
- Sunset: 6:26 pm MDT
- details ▼
On Sunday, in New Castle, scattered clouds may briefly filter the sunlight, but it will remain bright overall.
The maximum temperature will be a breezy 66.2°F, while the minimum forecasted temperature is a frosty 44.6°F.
Expect a warmer feel as the forecasted high matches September's 70.9°F, rather than October's average of 54.7°F.
Sunrise will be at 7:23 am and sunset at 6:26 pm; tomorrow's daylight will last for 11h and 3min.
The maximum temperature will be a breezy 66.2°F, while the minimum forecasted temperature is a frosty 44.6°F.
Expect a warmer feel as the forecasted high matches September's 70.9°F, rather than October's average of 54.7°F.
Sunrise will be at 7:23 am and sunset at 6:26 pm; tomorrow's daylight will last for 11h and 3min.
10-day overview
Daily temperatures
Warmest day: Wednesday 68°C.
Coldest period: Friday - Saturday 55°C.
Coldest period: Friday - Saturday 55°C.
Chance of precipitation
Highest chance: Thursday 73%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 43°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphE 94°
- Humidity: 54%
- UV index: 0
- Sunrise: 7:22 am MDT
- Sunset: 6:28 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 66°F
- 45°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphWNW 293°
- Humidity: 40%
- UV index: 4
- Sunrise: 7:23 am MDT
- Sunset: 6:26 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 46°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 7mphWNW 287°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:24 am MDT
- Sunset: 6:25 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 66°F
- 46°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 6mphWNW 303°
- Humidity: 58%
- UV index: 4
- Sunrise: 7:25 am MDT
- Sunset: 6:24 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 52°F
PM Showers
- Precip. probability: 36%
- Precipitation: 0.08"
- Wind: 7mphW 268°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:26 am MDT
- Sunset: 6:22 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 50°F
Rain
- Precip. probability: 73%
- Precipitation: 0.47"
- Wind: 7mphN 354°
- Humidity: 74%
- UV index: 2
- Sunrise: 7:27 am MDT
- Sunset: 6:21 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 55°F
- 43°F
Showers
- Precip. probability: 55%
- Precipitation: 0.24"
- Wind: 8mphWSW 241°
- Humidity: 76%
- UV index: 4
- Sunrise: 7:28 am MDT
- Sunset: 6:19 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 55°F
- 41°F
Mostly Sunny
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 7mphWNW 293°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:30 am MDT
- Sunset: 6:18 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 61°F
- 45°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphWNW 289°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:31 am MDT
- Sunset: 6:17 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 63°F
- 45°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0.04"
- Wind: 7mphSSW 210°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:32 am MDT
- Sunset: 6:15 pm MDT
- details ▼
Models point to a combination of gloomy, rain-soaked and sunny weather is expected.
Rainfall is expected on Wednesday through Friday.
Temperature fluctuation will be noticeable across the forecast period. The temperature is expected to swing from 55.4°F up to 68°F, while nighttime temperatures are expected to vary from 41°F to 51.8°F.
With the highest temperature of 68°F, Wednesday will be the warmest day; with a maximum temperature of 55.4°F, Friday and next Saturday will be the coldest days in New Castle.
Rainfall is expected on Wednesday through Friday.
Temperature fluctuation will be noticeable across the forecast period. The temperature is expected to swing from 55.4°F up to 68°F, while nighttime temperatures are expected to vary from 41°F to 51.8°F.
With the highest temperature of 68°F, Wednesday will be the warmest day; with a maximum temperature of 55.4°F, Friday and next Saturday will be the coldest days in New Castle.
Updated: Oct 18, 2026 @ 04:55:09 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, in New Castle, a partly cloudy sky is anticipated.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 44.6°F.
The maximum temperature tomorrow will be noticeably higher than the average highest temperature of 54.7°F in October. The lowest temperature will be also uncommonly higher than the average low of 33.1°F.
The maximum temperature tomorrow will be noticeably higher than the average highest temperature of 54.7°F in October. The lowest temperature will be also uncommonly higher than the average low of 33.1°F.
On Sunday, in New Castle, sunrise will be at 7:23 am and sunset at 6:26 pm (MDT).
In New Castle, tomorrow, there will be 11h and 3min of daylight.
