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 20, 11:00 AM EDT until August 20, 07:00 PM EDT

Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Fair

78°F

26°C

Humidity	85%
Wind Speed	SW 5 mph
Barometer	29.95 in (1014.1 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	20 Aug 2:52 am EDT

More Information:

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

Extended Forecast for

2 Miles NNW Atlantic Beach FL

Heat Advisory August 20, 11:00am until August 20, 07:00pm

Click here for hazard details and duration

Heat Advisory

Overnight
Low: 78 °F
Slight Chance
T-storms
Thursday
High: 94 °F
Mostly Sunny
then Chance
T-storms
Thursday Night
Low: 78 °F
Chance
T-storms then
Partly Cloudy
Friday
High: 91 °F
Sunny then
Chance
T-storms
Friday Night
Low: 76 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday
High: 90 °F
Mostly Sunny
then T-storms
Likely
Saturday Night
Low: 76 °F
Showers
Likely then
Chance
Showers
Sunday
High: 90 °F
Chance
T-storms
Sunday Night
Low: 76 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms before 5am. Partly cloudy, with a low around 78. West wind around 9 mph.

Thursday

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 109. West wind 7 to 14 mph becoming east in the afternoon. Winds could gust as high as 21 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 78. South wind 8 to 13 mph, with gusts as high as 20 mph.

Friday

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 91. Heat index values as high as 106. Southwest wind 5 to 10 mph becoming southeast in the afternoon.

Friday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 76. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

Saturday

Showers and thunderstorms likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.

Saturday Night

Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

Sunday

A slight chance of thunderstorms, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 90. Chance of precipitation is 40%.

Sunday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76.

Monday

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

Monday Night

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

Tuesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

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 90.