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Heat dome collapse to spark thunderstorms. Get the forecast. Chevron right

Frederick, MD

100°F
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Frederick

Maryland

100°
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Frederick, MD Weather
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3 PM

101°
RealFeel® 114°
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.
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rain drop 19%
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Sunny
alerts

Extreme Heat Warning

10:00 AM Friday - 9:00 PM Friday

RealFeel Shade™106°

Heat Index112°

WindW 7 mph

Air QualityPoor

Max UV Index7.5 (High)

Wind Gusts15 mph

Humidity40%

Indoor Humidity40% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover5%

Visibility10 mi

Cloud Ceiling33300 ft

4 PM

103°
RealFeel® 111°
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.
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rain drop 24%
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Sunny
alerts

Extreme Heat Warning

10:00 AM Friday - 9:00 PM Friday

RealFeel Shade™106°

Heat Index112°

WindW 7 mph

Air QualityPoor

Max UV Index4.9 (Moderate)

Wind Gusts16 mph

Humidity36%

Indoor Humidity36% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

100°
RealFeel® 116°
Very Dangerous Heat
RealFeel Guide
Very Dangerous Heat
116° to 124°
Significant caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps.
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rain drop 43%
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Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Friday - 9:00 PM Friday

RealFeel Shade™109°

Heat Index120°

WindWSW 7 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts16 mph

Humidity53%

Indoor Humidity53% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

95°
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.
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rain drop 47%
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Mostly sunny
alerts

Extreme Heat Warning

10:00 AM Friday - 9:00 PM Friday

RealFeel Shade™98°

Heat Index102°

WindWSW 7 mph

Air QualityPoor

Max UV Index2.1 (Low)

Wind Gusts16 mph

Humidity43%

Indoor Humidity43% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover28%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

89°
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 51%
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Mostly cloudy w/ t-storms
alerts

Extreme Heat Warning

10:00 AM Friday - 9:00 PM Friday

RealFeel Shade™101°

Heat Index105°

WindW 6 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts12 mph

Humidity75%

Indoor Humidity75% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

8 PM

87°
RealFeel® 91°
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%
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Mostly cloudy w/ t-storms
alerts

Extreme Heat Warning

10:00 AM Friday - 9:00 PM Friday

RealFeel Shade™91°

Heat Index96°

WindNW 6 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts8 mph

Humidity65%

Indoor Humidity65% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover70%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

9 PM

86°
RealFeel® 91°
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.
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rain drop 47%
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Intermittent clouds

Heat Index92°

WindWNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity63%

Indoor Humidity63% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover60%

Visibility10 mi

Cloud Ceiling4000 ft

10 PM

86°
RealFeel® 91°
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 40%
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Partly cloudy

Heat Index92°

WindW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity64%

Indoor Humidity64% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover44%

Visibility10 mi

Cloud Ceiling30000 ft

11 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.
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rain drop 34%
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Mostly clear

Heat Index89°

WindW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity70%

Indoor Humidity70% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Frederick

AccuWeather's hourly forecast for Frederick provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 101° with a RealFeel® of 114°, sunny with a 19% 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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