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New Castle, Colorado 81647 weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for New Castle, Colorado 81647. Always follow local warnings and emergency instructions.

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Weather guidance for your areaPlan with the complete forecast

Use current official weather information for New Castle, Colorado 81647 before making weather-sensitive plans.

Safety guides

Weather status

No active NWS alerts found for New Castle, Colorado 81647

Conditions can change quickly. Keep Wireless Emergency Alerts enabled and continue to monitor official information.

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What’s next

Hourly forecast

New Castle, Colorado 81647

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for New Castle, Colorado 81647. Forecasts and alerts update from NOAA and the National Weather Service.

86°Chance Showers And Thunderstorms33% rain
85°Chance Showers And Thunderstorms26% rain
84°Slight Chance Showers And Thunderstorms24% rain
78°Slight Chance Showers And Thunderstorms21% rain
75°Slight Chance Rain Showers16% rain
72°Slight Chance Rain Showers15% rain
68°Slight Chance Rain Showers15% rain
66°Slight Chance Rain Showers21% rain

Next 24 hours

Rain Timeline

Highest chance 33%

Scattered precipitation is possible. The highest official hourly chance is 33%; check the radar before heading out.

33%Thunderstorms
26%Thunderstorms
24%Thunderstorms
21%Thunderstorms
16%Rain
15%Rain
15%Rain
21%Rain
16%Rain
16%Rain
9%None
8%None
8%None
7%None
7%None
7%None
7%None
7%None
7%None
19%Thunderstorms
19%Thunderstorms
19%Thunderstorms
24%Thunderstorms
24%Thunderstorms

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

90°57°

Chance Showers And Thunderstorms

Precipitation
33%
Wind
WNW 10 mph
Sunrise
6:31 AM
Sunset
7:57 PM

Mon

91°56°

Mostly Sunny then Slight Chance Showers And Thunderstorms

Precipitation
24%
Wind
NW 5 to 10 mph
Sunrise
6:32 AM
Sunset
7:55 PM

Tue

91°56°

Mostly Sunny then Slight Chance Showers And Thunderstorms

Precipitation
14%
Wind
WSW 5 to 10 mph
Sunrise
6:33 AM
Sunset
7:54 PM

Wed

92°56°

Mostly Sunny then Slight Chance Showers And Thunderstorms

Precipitation
22%
Wind
SSE 5 to 10 mph
Sunrise
6:34 AM
Sunset
7:52 PM

Thu

91°56°

Mostly Sunny then Slight Chance Showers And Thunderstorms

Precipitation
17%
Wind
WSW 0 to 10 mph
Sunrise
6:35 AM
Sunset
7:51 PM

Fri

92°57°

Mostly Sunny

Precipitation
7%
Wind
SE 5 to 15 mph
Sunrise
6:36 AM
Sunset
7:49 PM

Sat

92°56°

Mostly Sunny then Slight Chance Rain Showers

Precipitation
14%
Wind
S 5 to 15 mph
Sunrise
6:37 AM
Sunset
7:48 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel82°F
Good conditions for walking

Conditions look reasonable, but stay alert for quick weather changes.

WindN8 mph
Best walk timeBetter weather window: 3 AM–5 AM

Walking: 9% average rain chance, near 61°F, with winds near 5 mph.

Official EPA AirNowLocal air qualityNew Castle, Colorado 81647
View AQI +
More weather details
Wind gusts17mph
Rain now33%next hour
Humidity31%current
UV indexCheckingEPA forecast

Wind impact: Noticeable breeze with generally minor outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gust17 mph
Pressure
Visibility1.2 mi
Peak rain chance33%
Dew point49°F
Active alertsNone

Official risk outlooks

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