As of 05:37 EDT

Weather in Fort Jefferson, FL

78°

Fort Jefferson, Tuesday, 20 October, 05:37

Mostly clear. Feels like 80°. High 81°, low 78°.

Pressure29.97 inHg

Wind26.3 mph NE

Humidity79%

Visibility6.2 mi

Dew point71°

Tue, 20October

81°/78°

Wed, 21October

80°/78°

Thu, 22October

81°/78°

Fri, 23October

80°/78°

Sat, 24October

81°/76°

Sun, 25October

81°/78°

Mon, 26October

81°/79°

	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	79°	80°	79°	78°	78°	79°	79°	79°	80°	80°	81°	80°
Feels like	79°	83°	81°	80°	80°	79°	79°	79°	80°	84°	84°	84°
Pressure, inHg	30.03	30.03	30.03	29.97	29.97	30.03	30.03	30.00	29.94	29.94	29.97	30.00
Wind, mph	11.7	11.7	11.7	11.7	11	10.3	9.9	8.8	8.2	7.8	7.8	7.9
Humidity, %	77%	77%	77%	79%	79%	77%	78%	77%	74%	71%	68%	69%
Precipitation	0 in	0 in	0 in	0.01 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0.02 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	4.6 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°	79°	79°	78°	78°	78°	78°	78°	78°	78°	79°	79°
Feels like	83°	79°	79°	79°	79°	79°	79°	79°	79°	79°	79°	79°
Pressure, inHg	29.97	29.97	29.94	29.94	29.97	30.00	30.00	29.97	29.94	29.94	29.97	29.97
Wind, mph	7.9	8.6	9.2	9.1	8.9	8.7	7.6	6.8	6.4	6	6.1	5.9
Humidity, %	70%	71%	72%	73%	72%	72%	71%	71%	68%	65%	61%	63%
Precipitation	0.01 in	0.01 in	0.01 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	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°	81°	80°	79°	78°	78°	78°	78°	78°	78°	78°	79°
Feels like	83°	83°	82°	79°	79°	79°	79°	78°	78°	78°	78°	79°
Pressure, inHg	29.97	29.94	29.94	29.94	29.97	30.00	30.03	29.97	29.94	29.94	29.94	29.97
Wind, mph	6.1	6.7	7	7	7.4	7.5	7.5	6.8	6.5	6.3	7.2	7.1
Humidity, %	59%	59%	61%	66%	69%	69%	69%	68%	66%	65%	61%	59%
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	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°	79°	78°	78°	78°	78°	78°	78°	78°	78°	78°	79°
Feels like	80°	79°	79°	79°	78°	79°	78°	78°	79°	79°	79°	79°
Pressure, inHg	29.97	29.97	29.94	29.94	29.97	30.00	30.03	29.97	29.97	29.94	29.97	30.00
Wind, mph	7.1	7.7	8.1	9.9	9.5	9.2	8.4	8.2	8.2	8.4	8.9	10
Humidity, %	60%	67%	71%	70%	69%	68%	69%	70%	68%	66%	65%	67%
Precipitation	0 in	0 in	0.02 in	0.01 in	0 in	0 in	0 in	0 in	0 in	0.01 in	0.01 in	0.02 in
Visibility	6.2 mi	6.2 mi	2.9 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	78°	78°	76°	79°	79°	79°	78°	79°	80°	81°	81°	81°
Feels like	79°	79°	77°	79°	79°	79°	79°	80°	82°	83°	84°	83°
Pressure, inHg	30.00	29.97	29.97	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00	30.00
Wind, mph	10.1	9	10	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4
Humidity, %	70%	72%	74%	73%	73%	73%	73%	73%	73%	73%	73%	73%
Precipitation	0.02 in	0.02 in	0.02 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	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°	79°	80°	80°	80°	81°	81°	81°
Feels like	80°	83°	81°	79°	79°	80°	80°	81°	82°	84°	85°	84°
Pressure, inHg	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91
Wind, mph	15.6	15.6	15.6	15.6	15.6	15.6	15.6	15.6	15.6	15.6	15.6	15.6
Humidity, %	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%	75%
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	—	—	—	—	—	—	—	—	—	—	—	—

	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°	80°	80°	79°	80°	80°	80°	81°	80°	80°	80°	80°
Feels like	81°	83°	81°	79°	81°	83°	84°	85°	85°	85°	85°	85°
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	15.1	15.1	15.1	15.1	15.1	15.1	15.1	15.1	15.1	15.1	15.1	15.1
Humidity, %	78%	78%	78%	78%	78%	78%	78%	78%	78%	78%	78%	78%
Precipitation	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 11 h 29 min

Sunrise — 07:31

Sunset — 19:00

Sunrise and sunset in local time

First quarter, 67%

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)