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 19, 11:00 AM EDT until August 19, 08:00 PM EDT

Current conditions at

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

Lat: 30.4°NLon: 81.42°WElev: 13ft.

Fair

81°F

27°C

Humidity	77%
Wind Speed	W 9 mph
Barometer	29.95 in (1014.1 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	19 Aug 1:52 am EDT

More Information:

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

Extended Forecast for

4 Miles NW Mayport Naval Station FL

Heat Advisory August 19, 11:00am until August 19, 08:00pm

Click here for hazard details and duration

Heat Advisory

Overnight
Low: 78 °F
Partly Cloudy
Wednesday
High: 97 °F
Sunny then
Chance
T-storms
Wednesday Night
Low: 78 °F
Chance
T-storms then
Partly Cloudy
Thursday
High: 95 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 78 °F
Slight Chance
T-storms then
Mostly Clear
Friday
High: 94 °F
Sunny then
Chance
T-storms
Friday Night
Low: 77 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 93 °F
Mostly Sunny
then T-storms
Likely
Saturday Night
Low: 76 °F
T-storms
Likely

Detailed Forecast

Overnight

Partly cloudy, with a low around 78. West wind around 10 mph, with gusts as high as 16 mph.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 110. West wind around 8 mph becoming south in the afternoon.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 78. South wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.

Thursday

A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 95. Heat index values as high as 109. Light and variable wind becoming southeast 5 to 8 mph in the afternoon.

Thursday Night

A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 78. South wind 5 to 7 mph.

Friday

A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

Friday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 77. Chance of precipitation is 30%.

Saturday

Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 60%.

Saturday Night

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

Sunday

A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92.

Sunday Night

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

Monday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

Monday Night

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