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New Castle, DE

88°F
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New Castle, DE Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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10 AM

90°
RealFeel® 98°
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 6%
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Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™92°

Heat Index95°

WindWNW 7 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts9 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover5%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

93°
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 7%
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Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™95°

Heat Index99°

WindWNW 8 mph

Air QualityPoor

Max UV Index7.4 (High)

Wind Gusts12 mph

Humidity48%

Indoor Humidity48% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

96°
RealFeel® 107°
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 7%
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Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™98°

Heat Index103°

WindWNW 9 mph

Air QualityPoor

Max UV Index9.7 (Very High)

Wind Gusts15 mph

Humidity45%

Indoor Humidity45% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

97°
RealFeel® 107°
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 11%
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Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™98°

Heat Index104°

WindWNW 10 mph

Air QualityPoor

Max UV Index10.8 (Extreme)

Wind Gusts16 mph

Humidity43%

Indoor Humidity43% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

97°
RealFeel® 107°
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 19%
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Partly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™98°

Heat Index104°

WindWNW 10 mph

Air QualityPoor

Max UV Index9.7 (Very High)

Wind Gusts18 mph

Humidity42%

Indoor Humidity42% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

99°
RealFeel® 106°
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 19%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™100°

Heat Index106°

WindWNW 10 mph

Air QualityPoor

Max UV Index7.4 (High)

Wind Gusts18 mph

Humidity39%

Indoor Humidity39% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

95°
RealFeel® 110°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
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 24%
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Partly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™104°

Heat Index113°

WindW 10 mph

Air QualityPoor

Max UV Index4.8 (Moderate)

Wind Gusts20 mph

Humidity60%

Indoor Humidity60% (Dangerously Humid)

Dew Point79° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

92°
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 43%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™97°

Heat Index102°

WindW 10 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts22 mph

Humidity57%

Indoor Humidity57% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

89°
RealFeel® 95°
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
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index97°

WindWSW 12 mph

Air QualityPoor

Max UV Index2.1 (Low)

Wind Gusts20 mph

Humidity61%

Indoor Humidity61% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

86°
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 51%
Chevron down
Mostly cloudy w/ t-storms
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index100°

WindWSW 12 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts17 mph

Humidity82%

Indoor Humidity82% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Rain0.20 in

Visibility3 mi

Cloud Ceiling2000 ft

8 PM

83°
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 47%
Chevron down
Partly sunny

RealFeel Shade™89°

Heat Index90°

WindSW 12 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts15 mph

Humidity78%

Indoor Humidity78% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

80°
RealFeel® 83°
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 47%
Chevron down
Partly cloudy

Heat Index83°

WindWSW 10 mph

Air QualityFair

Wind Gusts12 mph

Humidity77%

Indoor Humidity77% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

79°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Partly cloudy w/ t-storms

Heat Index80°

WindSW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity87%

Indoor Humidity87% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Rain0.15 in

Visibility4 mi

Cloud Ceiling30000 ft

11 PM

79°
RealFeel® 83°
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 40%
Chevron down
Partly cloudy

Heat Index80°

WindSW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity76%

Indoor Humidity76% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 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 90° with a RealFeel® of 98°, sunny with a 6% 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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