Monthly outlook for Charlotte Harbor, FL: average high 92.9°, average low 77.6°. That is 2.5° above the climate normal for August. Precipitation is expected on 8 days (about 3.3 inches), against a normal of 12 days and 3.0 inches. The warmest day looks like 17 August (96.3°), the coolest 10 August (73.1°).
92.9°/77.6°
Average high / low
+2.5°
Above normal
8 / 12
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
94.2°
88.3°
+3.3°
19 August – 28 August
90.8°
88.3°
+1.4°
29 August – 7 September
at normal
87.8°
—
August records over 66 years
97.7°6 August 2025All-time high
70.2°28 August 1984All-time low
Climate normals and records are computed from the nearest reference point — North Port (11 mi).
Mon, 1091° / 73°0.02
91 °
Charlotte Harbor, Monday, 10 August
Light rain. High 91°, low 73°.
Pressure30.15 inHg
Wind6.6 mph SE
Humidity53%
Visibility6.2 mi
Dew point71°
Tue, 1196° / 77°0
96 °
Charlotte Harbor, Tuesday, 11 August
Clear. High 96°, low 77°.
Pressure30.15 inHg
Wind4 mph E
Humidity50%
Visibility6.2 mi
Dew point70°
Wed, 1296° / 79°0
96 °
Charlotte Harbor, Wednesday, 12 August
Clear. High 96°, low 79°.
Pressure30.06 inHg
Wind3.3 mph NE
Humidity49%
Visibility6.2 mi
Dew point71°
Thu, 1395° / 80°0
95 °
Charlotte Harbor, Thursday, 13 August
Light rain. High 95°, low 80°.
Pressure30.03 inHg
Wind12.4 mph W
Humidity45%
Visibility—
Dew point68°
Fri, 1495° / 79°0
95 °
Charlotte Harbor, Friday, 14 August
Partly cloudy. High 95°, low 79°.
Pressure30.12 inHg
Wind12.8 mph W
Humidity44%
Visibility—
Dew point67°
Sat, 1596° / 80°0.03
96 °
Charlotte Harbor, Saturday, 15 August
Light rain. High 96°, low 80°.
Pressure30.12 inHg
Wind13.6 mph S
Humidity40%
Visibility—
Dew point65°
Sun, 1694° / 78°0
94 °
Charlotte Harbor, Sunday, 16 August
Overcast. High 94°, low 78°.
Pressure30.09 inHg
Wind10.6 mph W
Humidity47%
Visibility—
Dew point68°
Mon, 1796° / 78°0.27
96 °
Charlotte Harbor, Monday, 17 August
Light rain. High 96°, low 78°.
Pressure30.00 inHg
Wind8.3 mph NE
Humidity45%
Visibility—
Dew point69°
Tue, 1896° / 77°0.28
96 °
Charlotte Harbor, Tuesday, 18 August
Rain. High 96°, low 77°.
Pressure29.97 inHg
Wind11 mph W
Humidity48%
Visibility—
Dew point71°
Wed, 1990° / 75°0.57
90 °
Charlotte Harbor, Wednesday, 19 August
Rain. High 90°, low 75°.
Pressure29.97 inHg
Wind11.8 mph SW
Humidity58%
Visibility—
Dew point71°
Thu, 2092° / 80°0.07
92 °
Charlotte Harbor, Thursday, 20 August
Light rain. High 92°, low 80°.
Pressure29.97 inHg
Wind11.9 mph SW
Humidity53%
Visibility—
Dew point71°
Fri, 2188° / 78°0.66
88 °
Charlotte Harbor, Friday, 21 August
Rain. High 88°, low 78°.
Pressure29.97 inHg
Wind7.3 mph SW
Humidity62%
Visibility—
Dew point72°
Sat, 2292° / 76°0.48
92 °
Charlotte Harbor, Saturday, 22 August
Light rain. High 92°, low 76°.
Pressure29.94 inHg
Wind8 mph W
Humidity51%
Visibility—
Dew point69°
Sun, 2391° / 79°0.68
91 °
Charlotte Harbor, Sunday, 23 August
Rain. High 91°, low 79°.
Pressure29.94 inHg
Wind7.9 mph SW
Humidity55%
Visibility—
Dew point71°
Mon, 2492° / 77°0.17
92 °
Charlotte Harbor, Monday, 24 August
Light rain. High 92°, low 77°.
Pressure30.00 inHg
Wind6.2 mph SE
Humidity47%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2588° / 76°0.18
88 °
Charlotte Harbor, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.18 in
Chance of precipitation72%
Record high96° (2023)
Record low71° (1996)
Wed, 2689° / 76°0.24
89 °
Charlotte Harbor, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high89°
Average low76°
Average precipitation0.24 in
Chance of precipitation70%
Record high97° (2023)
Record low72° (1984)
Thu, 2788° / 76°0.23
88 °
Charlotte Harbor, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.23 in
Chance of precipitation68%
Record high94° (2014)
Record low72° (1969)
Fri, 2888° / 76°0.16
88 °
Charlotte Harbor, Friday, 28 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.16 in
Chance of precipitation70%
Record high96° (2014)
Record low70° (1984)
Sat, 2988° / 76°0.16
88 °
Charlotte Harbor, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.16 in
Chance of precipitation68%
Record high96° (2007)
Record low72° (1969)
Sun, 3088° / 76°0.24
88 °
Charlotte Harbor, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.24 in
Chance of precipitation67%
Record high95° (2014)
Record low72° (1969)
Mon, 3188° / 76°0.24
88 °
Charlotte Harbor, Monday, 31 August
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.24 in
Chance of precipitation63%
Record high94° (2014)
Record low72° (2025)
Tue, 0188° / 76°0.21
88 °
Charlotte Harbor, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high88°
Average low76°
Average precipitation0.21 in
Chance of precipitation70%
Record high96° (1970)
Record low73° (2022)
Wed, 0288° / 75°0.19
88 °
Charlotte Harbor, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high88°
Average low75°
Average precipitation0.19 in
Chance of precipitation63%
Record high96° (1970)
Record low72° (1968)
Thu, 0388° / 75°0.18
88 °
Charlotte Harbor, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high88°
Average low75°
Average precipitation0.18 in
Chance of precipitation62%
Record high97° (2020)
Record low72° (1967)
Fri, 0488° / 75°0.15
88 °
Charlotte Harbor, Friday, 4 September
Climate normal for this date — 60-year average.
Average high88°
Average low75°
Average precipitation0.15 in
Chance of precipitation60%
Record high98° (2020)
Record low71° (1967)
Sat, 0587° / 75°0.22
87 °
Charlotte Harbor, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.22 in
Chance of precipitation73%
Record high96° (2020)
Record low72° (1960)
Sun, 0687° / 75°0.21
87 °
Charlotte Harbor, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.21 in
Chance of precipitation67%
Record high93° (2020)
Record low71° (1978)
Mon, 0787° / 75°0.22
87 °
Charlotte Harbor, Monday, 7 September
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.22 in
Chance of precipitation67%
Record high94° (1968)
Record low70° (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 Charlotte Harbor, 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 Charlotte Harbor, 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.