Extreme Heat Risk this Week

Extreme heat and little overnight relief will lead to an extreme risk for heat-related impacts through the rest of the week. Extreme Heat Warning in effect on Tuesday. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from August 21, 11:00 AM EDT until August 21, 07:00 PM EDT

Current conditions at

Mayport Naval Station - Adm David L. McDonald Field (KNRB)

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Mostly Cloudy

80°F

27°C

Humidity	76%
Wind Speed	W 10 mph
Barometer	30.02 in (1016.5 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	20 Aug 9:52 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles WNW Atlantic Beach FL

Heat Advisory August 21, 11:00am until August 21, 07:00pm

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 77 °F
Partly Cloudy
Friday
High: 94 °F
Sunny then
Chance
T-storms
Friday Night
Low: 76 °F
Slight Chance
T-storms then
Partly Cloudy
Saturday
High: 92 °F
Mostly Sunny
then T-storms
Likely
Saturday Night
Low: 76 °F
Showers
Likely then
Chance
Showers
Sunday
High: 92 °F
Slight Chance
T-storms
Sunday Night
Low: 76 °F
Partly Cloudy
Monday
High: 93 °F
Sunny then
Slight Chance
T-storms
Monday Night
Low: 76 °F
Slight Chance
T-storms

Detailed Forecast

Tonight

Partly cloudy, with a low around 77. Southwest wind 5 to 7 mph.

Friday

A 30 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 94. Heat index values as high as 105. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

Friday Night

A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 76. South wind 6 to 9 mph.

Saturday

Showers and thunderstorms likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 92. Heat index values as high as 105. Southwest wind 7 to 9 mph. Chance of precipitation is 70%.

Saturday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 76. Southwest wind around 7 mph. Chance of precipitation is 60%.

Sunday

A slight chance of showers between 8am and 11am, then a slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 92. Chance of precipitation is 20%.

Sunday Night

Partly cloudy, with a low around 76.

Monday

A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

Monday Night

A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92.

Tuesday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

Wednesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.