Monthly outlook for Island Walk, FL: average high 90.8°, average low 78.6°. That is 1.7° above the climate normal for August. Precipitation is expected on 12 days (about 6.3 inches), against a normal of 12 days and 3.0 inches. The warmest day looks like 11 August (94.5°), the coolest 10 August (74.6°).
90.8°/78.6°
Average high / low
+1.7°
Above normal
12 / 12
Wet days / normal
6.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
92.3°
87.7°
+2.5°
19 August – 28 August
88.3°
87.6°
+0.4°
29 August – 7 September
at normal
87°
—
August records over 66 years
96.1°20 August 2007All-time high
71.1°3 August 1972All-time low
Climate normals and records are computed from the nearest reference point — Golden Gate (5 mi).
Mon, 1093° / 75°0.02
93 °
Island Walk, Monday, 10 August
Light rain. High 93°, low 75°.
Pressure30.12 inHg
Wind6.3 mph SE
Humidity47%
Visibility6.2 mi
Dew point69°
Tue, 1195° / 79°0.02
95 °
Island Walk, Tuesday, 11 August
Light rain. High 95°, low 79°.
Pressure30.12 inHg
Wind4.5 mph E
Humidity50%
Visibility6.2 mi
Dew point70°
Wed, 1292° / 82°0.03
92 °
Island Walk, Wednesday, 12 August
Light rain. High 92°, low 82°.
Pressure30.06 inHg
Wind4.8 mph SW
Humidity56%
Visibility6.2 mi
Dew point73°
Thu, 1391° / 82°0.24
91 °
Island Walk, Thursday, 13 August
Rain. High 91°, low 82°.
Pressure30.06 inHg
Wind11 mph SW
Humidity54%
Visibility—
Dew point71°
Fri, 1493° / 81°0.04
93 °
Island Walk, Friday, 14 August
Light rain. High 93°, low 81°.
Pressure30.12 inHg
Wind12.4 mph W
Humidity52%
Visibility—
Dew point71°
Sat, 1591° / 77°2.89
91 °
Island Walk, Saturday, 15 August
Heavy rain. High 91°, low 77°.
Pressure30.12 inHg
Wind11.2 mph NE
Humidity56%
Visibility—
Dew point71°
Sun, 1692° / 77°0
92 °
Island Walk, Sunday, 16 August
Overcast. High 92°, low 77°.
Pressure30.09 inHg
Wind11.8 mph NW
Humidity51%
Visibility—
Dew point69°
Mon, 1791° / 82°0.38
91 °
Island Walk, Monday, 17 August
Rain. High 91°, low 82°.
Pressure30.03 inHg
Wind8.6 mph NW
Humidity57%
Visibility—
Dew point72°
Tue, 1893° / 81°0.34
93 °
Island Walk, Tuesday, 18 August
Rain. High 93°, low 81°.
Pressure29.97 inHg
Wind11.7 mph SW
Humidity54%
Visibility—
Dew point73°
Wed, 1989° / 75°1.05
89 °
Island Walk, Wednesday, 19 August
Rain. High 89°, low 75°.
Pressure30.00 inHg
Wind10.5 mph NE
Humidity58%
Visibility—
Dew point71°
Thu, 2089° / 82°0.06
89 °
Island Walk, Thursday, 20 August
Light rain. High 89°, low 82°.
Pressure30.00 inHg
Wind11.3 mph SW
Humidity61%
Visibility—
Dew point73°
Fri, 2188° / 79°0.51
88 °
Island Walk, Friday, 21 August
Rain. High 88°, low 79°.
Pressure29.97 inHg
Wind7.5 mph SW
Humidity62%
Visibility—
Dew point72°
Sat, 2288° / 77°0.22
88 °
Island Walk, Saturday, 22 August
Rain. High 88°, low 77°.
Pressure29.97 inHg
Wind9.4 mph W
Humidity58%
Visibility—
Dew point70°
Sun, 2387° / 78°0.17
87 °
Island Walk, Sunday, 23 August
Light rain. High 87°, low 78°.
Pressure29.94 inHg
Wind6.9 mph SW
Humidity70%
Visibility—
Dew point72°
Mon, 2490° / 77°0.17
90 °
Island Walk, Monday, 24 August
Light rain. High 90°, low 77°.
Pressure30.00 inHg
Wind8.4 mph S
Humidity53%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 76°0.24
87 °
Island Walk, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.24 in
Chance of precipitation80%
Record high94° (2023)
Record low73° (1996)
Wed, 2687° / 76°0.25
87 °
Island Walk, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.25 in
Chance of precipitation78%
Record high94° (2014)
Record low73° (2023)
Thu, 2787° / 76°0.17
87 °
Island Walk, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.17 in
Chance of precipitation68%
Record high94° (2014)
Record low73° (1969)
Fri, 2887° / 76°0.19
87 °
Island Walk, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.19 in
Chance of precipitation77%
Record high92° (2014)
Record low72° (1984)
Sat, 2987° / 76°0.17
87 °
Island Walk, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.17 in
Chance of precipitation73%
Record high93° (1963)
Record low72° (1984)
Sun, 3087° / 76°0.23
87 °
Island Walk, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.23 in
Chance of precipitation73%
Record high94° (2014)
Record low72° (1994)
Mon, 3187° / 76°0.2
87 °
Island Walk, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.2 in
Chance of precipitation68%
Record high94° (1963)
Record low72° (1994)
Tue, 0187° / 76°0.2
87 °
Island Walk, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.2 in
Chance of precipitation80%
Record high94° (1970)
Record low72° (2022)
Wed, 0287° / 76°0.2
87 °
Island Walk, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.2 in
Chance of precipitation72%
Record high94° (2020)
Record low72° (1968)
Thu, 0387° / 76°0.18
87 °
Island Walk, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.18 in
Chance of precipitation75%
Record high93° (2022)
Record low72° (1967)
Fri, 0487° / 76°0.14
87 °
Island Walk, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.14 in
Chance of precipitation70%
Record high97° (2020)
Record low71° (1967)
Sat, 0587° / 76°0.23
87 °
Island Walk, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.23 in
Chance of precipitation88%
Record high93° (2022)
Record low73° (1984)
Sun, 0687° / 76°0.24
87 °
Island Walk, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.24 in
Chance of precipitation77%
Record high94° (2022)
Record low73° (2009)
Mon, 0787° / 76°0.25
87 °
Island Walk, Monday, 7 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.25 in
Chance of precipitation77%
Record high93° (2007)
Record low71° (1984)
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 Island Walk, 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 Island Walk, 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.