As of 14:16 EDT

Weather in Fort Jefferson, FL

81°

Fort Jefferson, Sunday, 18 October, 14:16

Overcast. Feels like 87°. High 82°, low 78°.

Pressure30.00 inHg

Wind20.2 mph E

Humidity81%

Visibility1.1 mi

Dew point74°

Sun, 18October

82°/78°

Mon, 19October

84°/78°

Tue, 20October

82°/79°

Wed, 21October

81°/78°

Thu, 22October

80°/78°

Fri, 23October

80°/76°

Sat, 24October

80°/77°

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	81°	81°	80°	79°	79°	80°	81°	81°	81°	82°	80°	81°
Feels like	81°	85°	83°	80°	82°	84°	86°	86°	86°	87°	80°	85°
Pressure, inHg	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	29.97	29.97	30.00	30.00
Wind, mph	11.4	11.4	11.4	11.4	11.4	11.4	11.4	11.4	8.6	8.8	10.3	9.4
Humidity, %	79%	79%	79%	79%	79%	79%	79%	79%	80%	77%	83%	77%
Precipitation	0.09 in	0.09 in	0.09 in	0.09 in	0.09 in	0.09 in	0.09 in	0.09 in	0.13 in	0.11 in	0.15 in	0.07 in
Visibility	—	—	—	—	—	—	—	—	1.8 mi	3.4 mi	3.0 mi	2.4 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	82°	81°	81°	80°	79°	79°	81°	81°	80°	81°	83°	83°
Feels like	87°	85°	85°	84°	79°	79°	86°	86°	84°	86°	88°	87°
Pressure, inHg	30.00	30.00	29.97	29.97	30.00	30.03	30.03	30.00	29.94	29.94	29.97	29.97
Wind, mph	11.9	11.5	10.8	11.3	10.5	10.2	10.6	9.9	9.1	5.9	9.1	10.5
Humidity, %	72%	76%	75%	77%	79%	82%	76%	77%	76%	74%	64%	64%
Precipitation	0 in	0 in	0 in	0.02 in	0.09 in	0 in	0 in	0.03 in	0.01 in	0.01 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	3.2 mi	3.1 mi	6.2 mi	6.2 mi	4.8 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	82°	80°	80°	80°	80°	80°	79°	80°	80°	81°	81°	82°
Feels like	86°	84°	84°	80°	80°	80°	79°	80°	84°	84°	84°	84°
Pressure, inHg	30.00	29.97	29.97	29.97	30.00	30.03	30.03	30.00	29.97	29.97	29.97	30.00
Wind, mph	10.8	11.1	10.8	10.8	11	10.9	10.1	9.3	8.9	9.1	9.6	9.1
Humidity, %	70%	74%	75%	77%	76%	77%	77%	76%	72%	61%	64%	61%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0.01 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	81°	79°	79°	79°	78°	78°	78°	78°	78°	79°	79°	80°
Feels like	84°	79°	79°	79°	79°	79°	79°	79°	79°	79°	79°	82°
Pressure, inHg	30.00	29.97	29.94	29.94	29.97	30.00	30.03	29.97	29.94	29.94	29.97	30.00
Wind, mph	9.7	9.3	8.5	8.3	8.8	8.4	8	7.3	6.7	6.7	7	6.7
Humidity, %	67%	74%	68%	71%	73%	73%	73%	72%	68%	66%	65%	62%
Precipitation	0 in	0.02 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	5.0 mi	3.7 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	80°	80°	79°	78°	78°	78°	78°	78°	79°	79°	79°	80°
Feels like	82°	80°	79°	79°	79°	79°	79°	78°	79°	79°	79°	80°
Pressure, inHg	29.97	29.97	29.94	29.97	29.97	30.00	30.00	30.00	30.00	30.00	30.00	30.00
Wind, mph	6.9	7.6	7.2	7.4	8.1	7.7	7.2	6.5	8.1	8.1	8.1	8.1
Humidity, %	61%	63%	67%	69%	70%	68%	67%	67%	67%	67%	67%	67%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	78°	76°	77°	77°	77°	77°	78°	78°	79°	80°	79°	78°
Feels like	78°	77°	77°	78°	78°	78°	78°	79°	79°	80°	79°	78°
Pressure, inHg	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97
Wind, mph	9.4	9.4	9.4	9.4	9.4	9.4	9.4	9.4	9.4	9.4	9.4	9.4
Humidity, %	70%	70%	70%	70%	70%	70%	70%	70%	70%	70%	70%	70%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	78°	79°	78°	77°	78°	78°	78°	79°	79°	80°	80°	80°
Feels like	78°	79°	78°	78°	78°	79°	79°	80°	81°	82°	82°	81°
Pressure, inHg	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00
Wind, mph	13.3	13.3	13.3	13.3	13.3	13.3	13.3	13.3	13.3	13.3	13.3	13.3
Humidity, %	69%	69%	69%	69%	69%	69%	69%	69%	69%	69%	69%	69%
Precipitation	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 11 h 32 min

Sunrise — 07:30

Sunset — 19:02

Sunrise and sunset in local time

First quarter, 50%

Sunrise — —

Sunset — —

Fort Jefferson, FL climate by month

The annual average temperature in Fort Jefferson, FL is 76.5°. The warmest month is August (average high 84°), and the coldest is January (average low 68.1°). About 32.8 inches of precipitation fall per year, most of it in September (6.0 in). Figures are 60-year climate normals and records from 66 years of observations.

Month	High	Low	Precipitation	Wet days	Record high	Record low
January	71.6°	68.1°	1.7 in	6	79.3° (2017)	49.5° (2003)
February	71.6°	68.2°	1.5 in	5	79.2° (2023)	50° (1996)
March	73.3°	70.4°	1.2 in	4	80.2° (2023)	54.7° (1980)
April	75.9°	73.4°	1.2 in	4	82.8° (2020)	60.1° (1987)
May	79.1°	76.7°	2.1 in	7	86° (2024)	66.4° (1992)
June	82.1°	79.3°	4.2 in	14	86.2° (2019)	73.4° (1984)
July	83.6°	80.6°	3.0 in	15	88.9° (2023)	74.7° (2022)
August	84°	80.7°	4.3 in	18	89.2° (2025)	75.2° (1984)
September	83.1°	79.9°	6.0 in	19	88.3° (2024)	74.5° (1983)
October	80.7°	77.9°	4.2 in	13	86.2° (2023)	65.7° (2008)
November	76.8°	74°	1.8 in	7	83.1° (2019)	56.8° (1970)
December	73.8°	70.7°	1.6 in	6	81° (2018)	52.9° (1962)