What is today's weather forecast for New Castle, CO?

Today's forecast for New Castle shows a high of 37 degrees and a low of 16 degrees Fahrenheit. Snow showers.

What is the 7-day weather forecast for New Castle, CO?

The 7-day forecast for New Castle shows highs from 36 to 39 degrees and lows from 13 to 21 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in New Castle, CO this week?

Yes, rain is possible in New Castle this week. Precipitation chances: Sunday (80% chance), Tuesday (50% chance), Wednesday (60% chance), Saturday (50% chance).

How accurate is the New Castle weather forecast?

WeatherForYou provides highly accurate New Castle forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

New Castle, CO Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

34°F
Feels Like 34°F

Humidity 99% Dew Point 34°F Wind SE 1 MPH Gusts 4 Barometer N/A

Solar Rad 52 w/m² Visibility 1.2 mi.

Report from a MADIS/MESONET weather station 4.4 mi. E of central New Castle
at 3:13 PM Sun, Nov 30, 2025

Point Forecast at a Glance

SunNov 30

80%

MonDec 1

TueDec 2

30%

WedDec 3

60%

ThuDec 4

FriDec 5

SatDec 6

50%

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 36°F to 39°F. Unsettled weather expected with snow likely on at least 4 days.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 38°F and lows around 15°F.

This Date in Weather History

1875 - A severe early season cold wave set November records in the northeastern U.S. The temperature dipped to 5 above zero at New York City, 2 below at Boston MA, and 13 below at Eastport ME.

New Castle, CO 7 Day Weather Forecast Details

Sunday Nov 30

Day: Snow showers. High near 37. West wind around 5 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 2 inches possible.

Night: Snow showers likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 16. West wind 5 to 10 mph becoming south southwest after midnight. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Monday Dec 1

Day: Sunny, with a high near 37. East northeast wind around 5 mph becoming west in the morning.

Night: Partly cloudy, with a low around 14. North northeast wind around 5 mph becoming east after midnight.

Tuesday Dec 2

Day: A 30 percent chance of snow showers after 11am. Mostly cloudy, with a high near 38. East southeast wind around 5 mph becoming west in the afternoon.

Night: A 50 percent chance of snow showers. Cloudy, with a low around 21.

Wednesday Dec 3

Day: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

Night: A slight chance of snow showers before 11pm. Mostly cloudy, with a low around 15.

Thursday Dec 4

Day: Mostly sunny, with a high near 37.

Night: Partly cloudy, with a low around 13.

Friday Dec 5

Day: Mostly cloudy, with a high near 36.

Night: Mostly cloudy, with a low around 18.

Saturday Dec 6

Day: A chance of snow showers. Mostly cloudy, with a high near 39.

About New Castle, CO

The Town of New Castle is a home rule municipality in Garfield County, Colorado, United States. The population was 4,923 at the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

Your favorites: