Monthly outlook for Palm City, FL: average high 90.3°, average low 79.3°. That is 1.5° above the climate normal for August. Precipitation is expected on 7 days (about 1.7 inches), against a normal of 13 days and 3.0 inches. The warmest day looks like 21 August (97°), the coolest 20 August (76.3°).
90.3°/79.3°
Average high / low
+1.5°
Above normal
7 / 13
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.5°
87.8°
+0.9°
19 August – 28 August
91.8°
87.1°
+2.6°
29 August – 7 September
at normal
86.5°
—
August records over 66 years
98.8°20 August 2025All-time high
70.2°28 August 1997All-time low
Climate normals and records are computed from the nearest reference point — Port St. Lucie (10 mi).
Mon, 1090° / 81°0
90 °
Palm City, Monday, 10 August
Partly cloudy. High 90°, low 81°.
Pressure30.15 inHg
Wind10 mph E
Humidity62%
Visibility6.2 mi
Dew point74°
Tue, 1189° / 78°0
89 °
Palm City, Tuesday, 11 August
Clear. High 89°, low 78°.
Pressure30.12 inHg
Wind7 mph E
Humidity60%
Visibility6.2 mi
Dew point73°
Wed, 1291° / 79°0
91 °
Palm City, Wednesday, 12 August
Clear. High 91°, low 79°.
Pressure30.06 inHg
Wind3 mph W
Humidity55%
Visibility6.2 mi
Dew point72°
Thu, 1393° / 78°0.01
93 °
Palm City, Thursday, 13 August
Light rain. High 93°, low 78°.
Pressure30.03 inHg
Wind11.6 mph SE
Humidity52%
Visibility—
Dew point71°
Fri, 1490° / 80°0
90 °
Palm City, Friday, 14 August
Partly cloudy. High 90°, low 80°.
Pressure30.15 inHg
Wind11.7 mph E
Humidity58%
Visibility—
Dew point72°
Sat, 1588° / 79°0.07
88 °
Palm City, Saturday, 15 August
Light rain. High 88°, low 79°.
Pressure30.15 inHg
Wind11.1 mph NE
Humidity65%
Visibility—
Dew point74°
Sun, 1688° / 79°0.03
88 °
Palm City, Sunday, 16 August
Light rain. High 88°, low 79°.
Pressure30.12 inHg
Wind10.5 mph E
Humidity61%
Visibility—
Dew point72°
Mon, 1788° / 78°0.09
88 °
Palm City, Monday, 17 August
Light rain. High 88°, low 78°.
Pressure30.09 inHg
Wind12.8 mph NE
Humidity64%
Visibility—
Dew point73°
Tue, 1888° / 78°0.09
88 °
Palm City, Tuesday, 18 August
Light rain. High 88°, low 78°.
Pressure30.06 inHg
Wind9.9 mph E
Humidity61%
Visibility—
Dew point72°
Wed, 1992° / 76°0.8
92 °
Palm City, Wednesday, 19 August
Rain. High 92°, low 76°.
Pressure29.97 inHg
Wind11 mph NW
Humidity57%
Visibility—
Dew point72°
Thu, 2093° / 76°0.38
93 °
Palm City, Thursday, 20 August
Rain. High 93°, low 76°.
Pressure29.91 inHg
Wind13.2 mph W
Humidity52%
Visibility—
Dew point71°
Fri, 2197° / 80°0
97 °
Palm City, Friday, 21 August
Clear. High 97°, low 80°.
Pressure29.88 inHg
Wind14.2 mph W
Humidity53%
Visibility—
Dew point74°
Sat, 2291° / 82°0
91 °
Palm City, Saturday, 22 August
Overcast. High 91°, low 82°.
Pressure29.97 inHg
Wind12.8 mph N
Humidity63%
Visibility—
Dew point76°
Sun, 2389° / 82°0.02
89 °
Palm City, Sunday, 23 August
Light rain. High 89°, low 82°.
Pressure30.03 inHg
Wind12.2 mph NE
Humidity70%
Visibility—
Dew point77°
Mon, 2488° / 80°0.09
88 °
Palm City, Monday, 24 August
Light rain. High 88°, low 80°.
Pressure30.03 inHg
Wind7.8 mph E
Humidity62%
Visibility—
Dew point73°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 76°0.2
87 °
Palm City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.2 in
Chance of precipitation83%
Record high92° (2022)
Record low73° (2001)
Wed, 2687° / 76°0.2
87 °
Palm City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.2 in
Chance of precipitation80%
Record high93° (1998)
Record low73° (1980)
Thu, 2787° / 76°0.16
87 °
Palm City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.16 in
Chance of precipitation73%
Record high92° (2011)
Record low73° (1969)
Fri, 2887° / 76°0.17
87 °
Palm City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.17 in
Chance of precipitation68%
Record high92° (2023)
Record low70° (1997)
Sat, 2987° / 76°0.15
87 °
Palm City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.15 in
Chance of precipitation65%
Record high92° (2023)
Record low71° (1984)
Sun, 3087° / 76°0.19
87 °
Palm City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.19 in
Chance of precipitation77%
Record high91° (1990)
Record low71° (1969)
Mon, 3187° / 76°0.16
87 °
Palm City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.16 in
Chance of precipitation73%
Record high92° (1998)
Record low73° (2021)
Tue, 0187° / 76°0.18
87 °
Palm City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low76°
Average precipitation0.18 in
Chance of precipitation83%
Record high93° (1998)
Record low72° (2024)
Wed, 0286° / 76°0.16
86 °
Palm City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.16 in
Chance of precipitation70%
Record high91° (1998)
Record low72° (2022)
Thu, 0386° / 76°0.24
86 °
Palm City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.24 in
Chance of precipitation78%
Record high91° (1998)
Record low70° (1999)
Fri, 0486° / 76°0.23
86 °
Palm City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.23 in
Chance of precipitation80%
Record high91° (2010)
Record low71° (1967)
Sat, 0586° / 76°0.28
86 °
Palm City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.28 in
Chance of precipitation83%
Record high91° (2019)
Record low72° (2021)
Sun, 0686° / 76°0.22
86 °
Palm City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.22 in
Chance of precipitation75%
Record high93° (2022)
Record low69° (2023)
Mon, 0786° / 75°0.2
86 °
Palm City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low75°
Average precipitation0.2 in
Chance of precipitation78%
Record high94° (2023)
Record low70° (2023)
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 Palm City, 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 Palm City, 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.