As of 22:40 EDT

Weather in San Castle, FL

85°Current weather

San Castle, Saturday, 8 August, 22:40

Clear. Feels like 97°. High 92°, low 80°.

Pressure30.09 inHg
Wind4 mph SE
Humidity83%
Visibility6.2 mi
Dew point79°

Monthly outlook for San Castle, FL: average high 91.8°, average low 82.3°. That is 2.7° above the climate normal for August. Precipitation is expected on 9 days (about 1.6 inches), against a normal of 14 days and 3.6 inches. The warmest day looks like 21 August (98.1°), the coolest 19 August (78.6°).

91.8°/82.3°
Average high / low
+2.7°
Above normal
9 / 14
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August91.1°86.9°+2.3°
18 August – 27 August93°86.5°+3.6°
28 August – 6 Septemberat normal85.9°

August records over 66 years

97.9°20 August 2025All-time high
72.7°28 August 1984All-time low
Sun, 0991° / 81°0.04Light rain
91 °Light rain

San Castle, Sunday, 9 August

Light rain. High 91°, low 81°.

Pressure30.12 inHg
Wind11.2 mph SE
Humidity60%
Visibility6.2 mi
Dew point73°
Mon, 1092° / 79°0.03Light rain
92 °Light rain

San Castle, Monday, 10 August

Light rain. High 92°, low 79°.

Pressure30.15 inHg
Wind10.3 mph SE
Humidity58%
Visibility6.2 mi
Dew point73°
Tue, 1191° / 83°0Clear
91 °Clear

San Castle, Tuesday, 11 August

Clear. High 91°, low 83°.

Pressure30.12 inHg
Wind9.4 mph SE
Humidity56%
Visibility6.2 mi
Dew point71°
Wed, 1292° / 83°0Clear
92 °Clear

San Castle, Wednesday, 12 August

Clear. High 92°, low 83°.

Pressure30.06 inHg
Wind7.9 mph SE
Humidity53%
Visibility6.2 mi
Dew point71°
Thu, 1393° / 83°0.01Light rain
93 °Light rain

San Castle, Thursday, 13 August

Light rain. High 93°, low 83°.

Pressure30.03 inHg
Wind12 mph SE
Humidity49%
Visibility
Dew point70°
Fri, 1491° / 84°0Overcast
91 °Overcast

San Castle, Friday, 14 August

Overcast. High 91°, low 84°.

Pressure30.15 inHg
Wind12.8 mph E
Humidity53%
Visibility
Dew point71°
Sat, 1590° / 84°0.04Light rain
90 °Light rain

San Castle, Saturday, 15 August

Light rain. High 90°, low 84°.

Pressure30.15 inHg
Wind12.9 mph SE
Humidity58%
Visibility
Dew point72°
Sun, 1691° / 83°0Partly cloudy
91 °Partly cloudy

San Castle, Sunday, 16 August

Partly cloudy. High 91°, low 83°.

Pressure30.09 inHg
Wind10.8 mph SE
Humidity52%
Visibility
Dew point70°
Mon, 1789° / 83°0.34Rain
89 °Rain

San Castle, Monday, 17 August

Rain. High 89°, low 83°.

Pressure30.09 inHg
Wind7.6 mph NE
Humidity65%
Visibility
Dew point72°
Tue, 1888° / 82°0.02Light rain
88 °Light rain

San Castle, Tuesday, 18 August

Light rain. High 88°, low 82°.

Pressure30.03 inHg
Wind9.5 mph E
Humidity60%
Visibility
Dew point72°
Wed, 1992° / 79°0.24Rain
92 °Rain

San Castle, Wednesday, 19 August

Rain. High 92°, low 79°.

Pressure29.97 inHg
Wind9.6 mph W
Humidity51%
Visibility
Dew point70°
Thu, 2096° / 81°0.3Rain
96 °Rain

San Castle, Thursday, 20 August

Rain. High 96°, low 81°.

Pressure29.91 inHg
Wind12.3 mph W
Humidity45%
Visibility
Dew point69°
Fri, 2198° / 82°0.09Light rain
98 °Light rain

San Castle, Friday, 21 August

Light rain. High 98°, low 82°.

Pressure29.88 inHg
Wind12.3 mph W
Humidity47%
Visibility
Dew point73°
Sat, 2294° / 84°0.1Light rain
94 °Light rain

San Castle, Saturday, 22 August

Light rain. High 94°, low 84°.

Pressure29.94 inHg
Wind12 mph NE
Humidity60%
Visibility
Dew point76°
Sun, 2389° / 85°0.23Light rain
89 °Light rain

San Castle, Sunday, 23 August

Light rain. High 89°, low 85°.

Pressure30.03 inHg
Wind8.9 mph SE
Humidity64%
Visibility
Dew point75°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 77°0.3Climate normal
86 °Climate normal

San Castle, Monday, 24 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.3 in
Chance of precipitation83%
Record high90° (2014)
Record low74° (1996)
Tue, 2586° / 77°0.23Climate normal
86 °Climate normal

San Castle, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.23 in
Chance of precipitation90%
Record high91° (2022)
Record low73° (2002)
Wed, 2686° / 77°0.26Climate normal
86 °Climate normal

San Castle, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.26 in
Chance of precipitation87%
Record high92° (1998)
Record low74° (1984)
Thu, 2786° / 77°0.21Climate normal
86 °Climate normal

San Castle, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.21 in
Chance of precipitation85%
Record high92° (2011)
Record low74° (2017)
Fri, 2886° / 77°0.24Climate normal
86 °Climate normal

San Castle, Friday, 28 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.24 in
Chance of precipitation80%
Record high90° (2025)
Record low73° (1984)
Sat, 2986° / 77°0.21Climate normal
86 °Climate normal

San Castle, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.21 in
Chance of precipitation80%
Record high92° (2025)
Record low73° (1994)
Sun, 3086° / 77°0.2Climate normal
86 °Climate normal

San Castle, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.2 in
Chance of precipitation82%
Record high91° (2023)
Record low73° (1969)
Mon, 3186° / 77°0.27Climate normal
86 °Climate normal

San Castle, Monday, 31 August

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.27 in
Chance of precipitation82%
Record high94° (2025)
Record low74° (1976)
Tue, 0186° / 77°0.22Climate normal
86 °Climate normal

San Castle, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.22 in
Chance of precipitation90%
Record high92° (1998)
Record low74° (1972)
Wed, 0285° / 77°0.22Climate normal
85 °Climate normal

San Castle, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high85°
Average low77°
Average precipitation0.22 in
Chance of precipitation80%
Record high91° (1998)
Record low73° (2022)
Thu, 0386° / 77°0.26Climate normal
86 °Climate normal

San Castle, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.26 in
Chance of precipitation80%
Record high90° (2015)
Record low74° (1967)
Fri, 0486° / 77°0.28Climate normal
86 °Climate normal

San Castle, Friday, 4 September

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.28 in
Chance of precipitation80%
Record high92° (2019)
Record low72° (1967)
Sat, 0586° / 77°0.38Climate normal
86 °Climate normal

San Castle, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.38 in
Chance of precipitation88%
Record high90° (2019)
Record low71° (2008)
Sun, 0686° / 77°0.28Climate normal
86 °Climate normal

San Castle, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high86°
Average low77°
Average precipitation0.28 in
Chance of precipitation83%
Record high93° (2019)
Record low72° (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 San Castle, 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 San Castle, 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.