Herndon, KY (42236)

8:09 AM CDT on July 21, 2017 (GMT -0500)
Herndon | | Change Station
Active Advisory: Heat Advisory

Elev 594 ft 36.67 °N, 87.56 °W | Updated 25 seconds ago

Clear
Clear
78.4 °F
Feels Like 82 °F
N
1.0
Wind Variable Wind from SW
Gusts 2.0 mph

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 30.06 in
Visibility 10.0 miles
Clouds Clear
Heat Index 82 °F
Dew Point 77 °F
Humidity 95%
Rainfall 0.00 in
Snow Depth Not available.
5:47 AM 8:05 PM
Waning Crescent, 5% visible
METAR KHOP 211258Z AUTO 22004KT 10SM CLR 27/23 A3007 RMK AO2 SLP178 T02700234
Pressure 30.06 in
Visibility 10.0 miles
Clouds Clear
Heat Index 82 °F
Dew Point 77 °F
Humidity 95%
Rainfall 0.00 in
Snow Depth Not available.
5:47 AM 8:05 PM
Waning Crescent, 5% visible
METAR KHOP 211258Z AUTO 22004KT 10SM CLR 27/23 A3007 RMK AO2 SLP178 T02700234

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10-Day Weather Forecast

Almanac

Astronomy

Jul. 21, 2017 Rise Set
Actual Time
Civil Twilight
Nautical Twilight
Astronomical Twilight
Moon
Length of Visible Light
Length of Day
Tomorrow will be .
, % of the Moon is Illuminated

Today's Extremes

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Nearby

Air Quality

  Air Quality AQ Index Pollutant
Not available.

Snow Depth

Station Depth Elevation

Earthquake Activity

City Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

Coastal Water Temperatures

Place Temperature

Stations

Nearby Weather Stations

Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type
                   

Watches & Warnings

Heat Advisory
Issued: 3:55 AM CDT Jul. 21, 2017 – National Weather Service

... Heat advisory remains in effect until 7 PM CDT Sunday...

* timing... today through Sunday evening.

* Heat index values... peak heat indices will range from 105 to 110
degrees today and Saturday. On Sunday, anticipated thunderstorm
activity should limit heat indices to between 100 and 105. In
addition, overnight lows will be only in the mid 70s.

* Impacts... the combination of hot temperatures and high
humidity will lead to an increased risk of heat-related illness.
The very Young, the elderly, those without air conditioning,
and those participating in strenuous outdoor activities will be
the most susceptible. Also, car interiors will reach lethal
temperatures in a matter of minutes.

Precautionary/preparedness actions...

A heat advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids... stay in an air-conditioned
room... stay out of the sun... and check up on relatives and
neighbors.