As of 05:49 EDT

Weather in Fisher Island, FL

83°

Fisher Island, Sunday, 9 August, 05:49

Mostly clear. Feels like 91°. High 93°, low 82°.

Pressure30.03 inHg

Wind2 mph E

Humidity80%

Visibility6.2 mi

Dew point75°

See detailed hourly forecast

Monthly outlook for Fisher Island, FL: average high 87.8°, average low 83.4°. That is 0.9° above the climate normal for August. Precipitation is expected on 8 days (about 2.4 inches), against a normal of 12 days and 2.8 inches. The warmest day looks like 9 August (93.4°), the coolest 10 August (78.4°).

87.8°/83.4°

Average high / low

+0.9°

Above normal

8 / 12

Wet days / normal

2.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	88.6°	86.2°	+1.3°
19 August – 28 August	86.5°	85.8°	+0.4°
29 August – 7 September	at normal	85.2°	—

August records over 66 years

95.5°19 August 2025All-time high

73.4°4 August 2021All-time low

Climate normals and records are computed from the nearest reference point — Miami Beach (4 mi).

Mon, 1092° / 78°

92 °

Fisher Island, Monday, 10 August

Mostly clear. High 92°, low 78°.

Pressure30.15 inHg

Wind10.9 mph E

Humidity66%

Visibility6.2 mi

Dew point74°

Tue, 1188° / 85°

88 °

Fisher Island, Tuesday, 11 August

Overcast. High 88°, low 85°.

Pressure30.12 inHg

Wind8.9 mph E

Humidity63%

Visibility6.2 mi

Dew point73°

Wed, 1287° / 85°

87 °

Fisher Island, Wednesday, 12 August

Mostly clear. High 87°, low 85°.

Pressure30.06 inHg

Wind9.7 mph SE

Humidity66%

Visibility6.2 mi

Dew point74°

Thu, 1389° / 84°

89 °

Fisher Island, Thursday, 13 August

Partly cloudy. High 89°, low 84°.

Pressure30.06 inHg

Wind14.2 mph SE

Humidity59%

Visibility—

Dew point72°

Fri, 1488° / 85°

88 °

Fisher Island, Friday, 14 August

Partly cloudy. High 88°, low 85°.

Pressure30.12 inHg

Wind16.1 mph E

Humidity61%

Visibility—

Dew point73°

Sat, 1587° / 85°

0.22

87 °

Fisher Island, Saturday, 15 August

Rain. High 87°, low 85°.

Pressure30.15 inHg

Wind16.1 mph SE

Humidity60%

Visibility—

Dew point71°

Sun, 1687° / 85°

87 °

Fisher Island, Sunday, 16 August

Overcast. High 87°, low 85°.

Pressure30.12 inHg

Wind11.6 mph SE

Humidity61%

Visibility—

Dew point71°

Mon, 1787° / 84°

0.15

87 °

Fisher Island, Monday, 17 August

Light rain. High 87°, low 84°.

Pressure30.00 inHg

Wind10.8 mph SE

Humidity59%

Visibility—

Dew point71°

Tue, 1887° / 84°

0.02

87 °

Fisher Island, Tuesday, 18 August

Light rain. High 87°, low 84°.

Pressure29.97 inHg

Wind15.8 mph SE

Humidity61%

Visibility—

Dew point72°

Wed, 1987° / 83°

0.22

87 °

Fisher Island, Wednesday, 19 August

Light rain. High 87°, low 83°.

Pressure30.00 inHg

Wind14 mph S

Humidity67%

Visibility—

Dew point74°

Thu, 2087° / 85°

0.03

87 °

Fisher Island, Thursday, 20 August

Light rain. High 87°, low 85°.

Pressure30.00 inHg

Wind14.8 mph SE

Humidity62%

Visibility—

Dew point72°

Fri, 2187° / 84°

0.04

87 °

Fisher Island, Friday, 21 August

Light rain. High 87°, low 84°.

Pressure30.00 inHg

Wind10.9 mph SE

Humidity60%

Visibility—

Dew point71°

Sat, 2284° / 82°

0.74

84 °

Fisher Island, Saturday, 22 August

Rain. High 84°, low 82°.

Pressure29.97 inHg

Wind10.4 mph SE

Humidity75%

Visibility—

Dew point74°

Sun, 2387° / 82°

0.32

87 °

Fisher Island, Sunday, 23 August

Rain. High 87°, low 82°.

Pressure29.97 inHg

Wind19.3 mph SE

Humidity59%

Visibility—

Dew point71°

Mon, 2487° / 83°

0.64

87 °

Fisher Island, Monday, 24 August

Rain. High 87°, low 83°.

Pressure30.03 inHg

Wind14.5 mph SE

Humidity61%

Visibility—

Dew point71°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2585° / 78°

0.27

85 °

Fisher Island, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.27 in

Chance of precipitation78%

Record high91° (2022)

Record low74° (1978)

Wed, 2686° / 78°

0.26

86 °

Fisher Island, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high86°

Average low78°

Average precipitation0.26 in

Chance of precipitation83%

Record high91° (2022)

Record low75° (2023)

Thu, 2785° / 78°

0.17

85 °

Fisher Island, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.17 in

Chance of precipitation68%

Record high91° (2025)

Record low75° (2019)

Fri, 2885° / 78°

0.19

85 °

Fisher Island, Friday, 28 August

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.19 in

Chance of precipitation82%

Record high92° (2025)

Record low75° (2022)

Sat, 2985° / 78°

0.19

85 °

Fisher Island, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.19 in

Chance of precipitation77%

Record high94° (2025)

Record low75° (1969)

Sun, 3085° / 78°

0.22

85 °

Fisher Island, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.22 in

Chance of precipitation85%

Record high93° (2025)

Record low73° (1969)

Mon, 3185° / 78°

0.21

85 °

Fisher Island, Monday, 31 August

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.21 in

Chance of precipitation75%

Record high91° (2020)

Record low74° (2022)

Tue, 0186° / 78°

0.17

86 °

Fisher Island, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high86°

Average low78°

Average precipitation0.17 in

Chance of precipitation78%

Record high91° (2023)

Record low74° (2022)

Wed, 0285° / 78°

0.21

85 °

Fisher Island, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.21 in

Chance of precipitation73%

Record high90° (2025)

Record low73° (2022)

Thu, 0385° / 78°

0.23

85 °

Fisher Island, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.23 in

Chance of precipitation75%

Record high91° (2022)

Record low75° (2021)

Fri, 0485° / 78°

0.17

85 °

Fisher Island, Friday, 4 September

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.17 in

Chance of precipitation73%

Record high91° (2020)

Record low74° (2021)

Sat, 0585° / 78°

0.22

85 °

Fisher Island, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.22 in

Chance of precipitation87%

Record high91° (2022)

Record low73° (2021)

Sun, 0685° / 78°

0.22

85 °

Fisher Island, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.22 in

Chance of precipitation82%

Record high92° (2022)

Record low73° (2021)

Mon, 0785° / 78°

0.16

85 °

Fisher Island, Monday, 7 September

Climate normal for this date — 60-year average.

Average high85°

Average low78°

Average precipitation0.16 in

Chance of precipitation73%

Record high91° (2022)

Record low73° (2021)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Fisher Island, FL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Fisher Island, FL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.