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New Castle, CO

76°F
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New Castle

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New Castle, CO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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11 AM

79°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™76°

WindSW 6 mph

Air QualityPoor

Max UV Index8.1 (Very High)

Wind Gusts7 mph

Humidity15%

Indoor Humidity15% (Dry)

Dew Point27° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

84°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™82°

Heat Index81°

WindWSW 6 mph

Air QualityPoor

Max UV Index10.7 (Extreme)

Wind Gusts8 mph

Humidity13%

Indoor Humidity13% (Dry)

Dew Point27° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

89°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™86°

Heat Index85°

WindWSW 7 mph

Air QualityPoor

Max UV Index11.9 (Extreme)

Wind Gusts10 mph

Humidity11%

Indoor Humidity11% (Dry)

Dew Point28° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

96°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 9%
Chevron down
Partly sunny

RealFeel Shade™93°

Heat Index90°

WindWSW 8 mph

Air QualityPoor

Max UV Index10.7 (Extreme)

Wind Gusts13 mph

Humidity9%

Indoor Humidity9% (Dry)

Dew Point28° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

97°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 9%
Chevron down
Partly sunny

RealFeel Shade™94°

Heat Index91°

WindW 8 mph

Air QualityPoor

Max UV Index8.1 (Very High)

Wind Gusts15 mph

Humidity9%

Indoor Humidity9% (Dry)

Dew Point29° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling29900 ft

4 PM

98°
RealFeel® 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 13%
Chevron down
Partly sunny

RealFeel Shade™95°

Heat Index92°

WindWSW 9 mph

Air QualityPoor

Max UV Index5.3 (Moderate)

Wind Gusts14 mph

Humidity9%

Indoor Humidity9% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling29900 ft

5 PM

96°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 43%
Chevron down
Partly sunny

RealFeel Shade™93°

Heat Index91°

WindWSW 9 mph

Air QualityPoor

Max UV Index3.7 (Moderate)

Wind Gusts14 mph

Humidity10%

Indoor Humidity10% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover48%

Visibility10 mi

Cloud Ceiling29900 ft

6 PM

95°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

RealFeel Shade™92°

Heat Index90°

WindSW 9 mph

Air QualityPoor

Max UV Index1.8 (Low)

Wind Gusts13 mph

Humidity11%

Indoor Humidity11% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling19400 ft

7 PM

93°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 51%
Chevron down
Mostly cloudy w/ t-storms

RealFeel Shade™88°

Heat Index88°

WindSW 8 mph

Air QualityPoor

Max UV Index0.9 (Low)

Wind Gusts10 mph

Humidity12%

Indoor Humidity12% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover69%

Rain0.02 in

Visibility6 mi

Cloud Ceiling22900 ft

8 PM

91°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 3%
Chevron down
Intermittent clouds

RealFeel Shade™89°

Heat Index87°

WindSSW 7 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts7 mph

Humidity14%

Indoor Humidity14% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover67%

Visibility10 mi

Cloud Ceiling26500 ft

9 PM

88°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

Heat Index84°

WindNE 6 mph

Air QualityPoor

Wind Gusts6 mph

Humidity16%

Indoor Humidity16% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

82°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

Heat Index80°

WindENE 6 mph

Air QualityPoor

Wind Gusts6 mph

Humidity20%

Indoor Humidity20% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover67%

Visibility10 mi

Cloud Ceiling26500 ft

11 PM

79°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindE 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity22%

Indoor Humidity22% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover73%

Visibility10 mi

Cloud Ceiling23000 ft

Hourly Weather Forecast for New Castle

AccuWeather's hourly forecast for New Castle provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 79° with a RealFeel® of 87°, partly sunny with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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