Monthly outlook for Royal Terrace, FL: average high 98.8°, average low 78.7°. That is 6.2° above the climate normal for August. Precipitation is expected on 6 days (about 3.2 inches), against a normal of 11 days and 3.0 inches. The warmest day looks like 20 August (104.8°), the coolest 10 August (75.3°).
98.8°/78.7°
Average high / low
+6.2°
Above normal
6 / 11
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
97.9°
87.7°
+5.6°
19 August – 28 August
100.5°
87°
+7.5°
29 August – 7 September
at normal
85.6°
—
August records over 66 years
100.9°1 August 1999All-time high
67.6°19 August 1960All-time low
Climate normals and records are computed from the nearest reference point — Jacksonville (3 mi).
Mon, 1097° / 75°0.1
97 °
Royal Terrace, Monday, 10 August
Light rain. High 97°, low 75°.
Pressure30.15 inHg
Wind4.9 mph W
Humidity50%
Visibility6.2 mi
Dew point72°
Tue, 11101° / 79°0.02
101 °
Royal Terrace, Tuesday, 11 August
Light rain. High 101°, low 79°.
Pressure30.12 inHg
Wind6 mph W
Humidity42%
Visibility6.2 mi
Dew point69°
Wed, 12102° / 80°0
102 °
Royal Terrace, Wednesday, 12 August
Clear. High 102°, low 80°.
Pressure30.03 inHg
Wind8.7 mph W
Humidity34%
Visibility6.2 mi
Dew point64°
Thu, 13101° / 81°0
101 °
Royal Terrace, Thursday, 13 August
Partly cloudy. High 101°, low 81°.
Pressure29.97 inHg
Wind10.3 mph W
Humidity28%
Visibility—
Dew point59°
Fri, 14102° / 81°0
102 °
Royal Terrace, Friday, 14 August
Overcast. High 102°, low 81°.
Pressure30.06 inHg
Wind8.1 mph W
Humidity31%
Visibility—
Dew point62°
Sat, 1595° / 77°0.68
95 °
Royal Terrace, Saturday, 15 August
Heavy rain. High 95°, low 77°.
Pressure30.12 inHg
Wind9.3 mph SW
Humidity42%
Visibility—
Dew point67°
Sun, 1692° / 76°0.03
92 °
Royal Terrace, Sunday, 16 August
Light rain. High 92°, low 76°.
Pressure30.12 inHg
Wind9 mph NE
Humidity50%
Visibility—
Dew point69°
Mon, 1796° / 77°0.31
96 °
Royal Terrace, Monday, 17 August
Rain. High 96°, low 77°.
Pressure30.09 inHg
Wind10 mph E
Humidity41%
Visibility—
Dew point67°
Tue, 1898° / 77°0.35
98 °
Royal Terrace, Tuesday, 18 August
Rain. High 98°, low 77°.
Pressure30.00 inHg
Wind6.7 mph NE
Humidity40%
Visibility—
Dew point67°
Wed, 19100° / 76°1.65
100 °
Royal Terrace, Wednesday, 19 August
Heavy rain. High 100°, low 76°.
Pressure29.91 inHg
Wind21.1 mph SW
Humidity40%
Visibility—
Dew point66°
Thu, 20105° / 76°0
105 °
Royal Terrace, Thursday, 20 August
Overcast. High 105°, low 76°.
Pressure29.83 inHg
Wind8.5 mph SW
Humidity37%
Visibility—
Dew point67°
Fri, 21104° / 84°0
104 °
Royal Terrace, Friday, 21 August
Clear. High 104°, low 84°.
Pressure29.83 inHg
Wind12.3 mph NE
Humidity32%
Visibility—
Dew point66°
Sat, 2297° / 82°0
97 °
Royal Terrace, Saturday, 22 August
Clear. High 97°, low 82°.
Pressure30.00 inHg
Wind10.8 mph E
Humidity41%
Visibility—
Dew point67°
Sun, 2397° / 81°0
97 °
Royal Terrace, Sunday, 23 August
Partly cloudy. High 97°, low 81°.
Pressure30.06 inHg
Wind9.6 mph SE
Humidity37%
Visibility—
Dew point64°
Mon, 24101° / 80°0.01
101 °
Royal Terrace, Monday, 24 August
Light rain. High 101°, low 80°.
Pressure30.03 inHg
Wind4.6 mph E
Humidity33%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2586° / 75°0.2
86 °
Royal Terrace, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low75°
Average precipitation0.2 in
Chance of precipitation70%
Record high95° (1968)
Record low71° (1972)
Wed, 2687° / 75°0.16
87 °
Royal Terrace, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.16 in
Chance of precipitation67%
Record high96° (1968)
Record low70° (1997)
Thu, 2787° / 75°0.15
87 °
Royal Terrace, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.15 in
Chance of precipitation58%
Record high97° (2011)
Record low69° (1969)
Fri, 2887° / 75°0.17
87 °
Royal Terrace, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low75°
Average precipitation0.17 in
Chance of precipitation62%
Record high97° (2011)
Record low69° (2014)
Sat, 2986° / 75°0.17
86 °
Royal Terrace, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low75°
Average precipitation0.17 in
Chance of precipitation63%
Record high94° (1990)
Record low70° (1984)
Sun, 3086° / 75°0.22
86 °
Royal Terrace, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low75°
Average precipitation0.22 in
Chance of precipitation63%
Record high93° (2013)
Record low71° (1969)
Mon, 3186° / 75°0.2
86 °
Royal Terrace, Monday, 31 August
Climate normal for this date — 60-year average.
Average high86°
Average low75°
Average precipitation0.2 in
Chance of precipitation80%
Record high94° (1998)
Record low71° (2025)
Tue, 0186° / 75°0.18
86 °
Royal Terrace, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low75°
Average precipitation0.18 in
Chance of precipitation72%
Record high92° (1970)
Record low69° (1966)
Wed, 0285° / 74°0.19
85 °
Royal Terrace, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.19 in
Chance of precipitation72%
Record high92° (1970)
Record low67° (1999)
Thu, 0385° / 74°0.2
85 °
Royal Terrace, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.2 in
Chance of precipitation60%
Record high93° (1999)
Record low68° (1999)
Fri, 0485° / 74°0.22
85 °
Royal Terrace, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.22 in
Chance of precipitation58%
Record high94° (1999)
Record low69° (1998)
Sat, 0585° / 74°0.22
85 °
Royal Terrace, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.22 in
Chance of precipitation58%
Record high97° (1999)
Record low68° (2023)
Sun, 0685° / 74°0.26
85 °
Royal Terrace, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.26 in
Chance of precipitation63%
Record high94° (2023)
Record low68° (1994)
Mon, 0785° / 74°0.2
85 °
Royal Terrace, Monday, 7 September
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.2 in
Chance of precipitation65%
Record high93° (1983)
Record low69° (1997)
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 Royal Terrace, 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 Royal Terrace, 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.