Monthly outlook for Greenbriar, FL: average high 88.5°, average low 81.7°. That is 1.9° above the climate normal for August. Precipitation is expected on 5 days (about 0.4 inches), against a normal of 11 days and 3.1 inches. The warmest day looks like 8 August (91.4°), the coolest 10 August (76.2°).
88.5°/81.7°
Average high / low
+1.9°
Above normal
5 / 11
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
89.1°
84.9°
+2.4°
18 August – 27 August
87.4°
85.2°
+1.2°
28 August – 6 September
at normal
84.7°
—
August records over 66 years
95.7°4 August 2025All-time high
70.7°17 August 2024All-time low
Climate normals and records are computed from the nearest reference point — Clearwater (2 mi).
Sun, 0991° / 78°0.08
91 °
Greenbriar, Sunday, 9 August
Light rain. High 91°, low 78°.
Pressure30.12 inHg
Wind5.1 mph SE
Humidity61%
Visibility6.2 mi
Dew point73°
Mon, 1090° / 76°0
90 °
Greenbriar, Monday, 10 August
Overcast. High 90°, low 76°.
Pressure30.15 inHg
Wind8.6 mph SE
Humidity56%
Visibility6.2 mi
Dew point71°
Tue, 1190° / 83°0.01
90 °
Greenbriar, Tuesday, 11 August
Light rain. High 90°, low 83°.
Pressure30.15 inHg
Wind4.4 mph S
Humidity58%
Visibility6.2 mi
Dew point72°
Wed, 1287° / 84°0
87 °
Greenbriar, Wednesday, 12 August
Light rain. High 87°, low 84°.
Pressure30.09 inHg
Wind10.1 mph NW
Humidity62%
Visibility6.2 mi
Dew point73°
Thu, 1387° / 83°0
87 °
Greenbriar, Thursday, 13 August
Clear. High 87°, low 83°.
Pressure30.09 inHg
Wind11.5 mph NW
Humidity59%
Visibility—
Dew point71°
Fri, 1488° / 83°0
88 °
Greenbriar, Friday, 14 August
Partly cloudy. High 88°, low 83°.
Pressure30.12 inHg
Wind13.2 mph NW
Humidity60%
Visibility—
Dew point71°
Sat, 1588° / 82°0.04
88 °
Greenbriar, Saturday, 15 August
Light rain. High 88°, low 82°.
Pressure30.15 inHg
Wind12.5 mph NW
Humidity57%
Visibility—
Dew point70°
Sun, 1689° / 82°0.03
89 °
Greenbriar, Sunday, 16 August
Light rain. High 89°, low 82°.
Pressure30.15 inHg
Wind11.7 mph NW
Humidity54%
Visibility—
Dew point69°
Mon, 1790° / 83°0.09
90 °
Greenbriar, Monday, 17 August
Light rain. High 90°, low 83°.
Pressure30.12 inHg
Wind12.4 mph NW
Humidity51%
Visibility—
Dew point68°
Tue, 1890° / 82°0.04
90 °
Greenbriar, Tuesday, 18 August
Light rain. High 90°, low 82°.
Pressure30.06 inHg
Wind12.3 mph W
Humidity54%
Visibility—
Dew point70°
Wed, 1987° / 83°0.03
87 °
Greenbriar, Wednesday, 19 August
Light rain. High 87°, low 83°.
Pressure30.03 inHg
Wind12.2 mph NW
Humidity60%
Visibility—
Dew point71°
Thu, 2087° / 83°0
87 °
Greenbriar, Thursday, 20 August
Overcast. High 87°, low 83°.
Pressure30.03 inHg
Wind14 mph W
Humidity58%
Visibility—
Dew point70°
Fri, 2187° / 83°0
87 °
Greenbriar, Friday, 21 August
Partly cloudy. High 87°, low 83°.
Pressure30.03 inHg
Wind13.1 mph W
Humidity60%
Visibility—
Dew point71°
Sat, 2287° / 83°0
87 °
Greenbriar, Saturday, 22 August
Clear. High 87°, low 83°.
Pressure30.00 inHg
Wind12.4 mph W
Humidity56%
Visibility—
Dew point69°
Sun, 2386° / 82°0
86 °
Greenbriar, Sunday, 23 August
Partly cloudy. High 86°, low 82°.
Pressure29.97 inHg
Wind11.4 mph W
Humidity66%
Visibility—
Dew point73°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 78°0.22
85 °
Greenbriar, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.22 in
Chance of precipitation67%
Record high93° (2023)
Record low73° (2024)
Tue, 2585° / 78°0.2
85 °
Greenbriar, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.2 in
Chance of precipitation58%
Record high94° (2023)
Record low72° (2023)
Wed, 2685° / 78°0.14
85 °
Greenbriar, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.14 in
Chance of precipitation63%
Record high92° (2023)
Record low74° (2023)
Thu, 2785° / 78°0.17
85 °
Greenbriar, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.17 in
Chance of precipitation57%
Record high93° (2023)
Record low73° (2025)
Fri, 2885° / 78°0.17
85 °
Greenbriar, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.17 in
Chance of precipitation58%
Record high92° (2023)
Record low74° (2025)
Sat, 2985° / 78°0.24
85 °
Greenbriar, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.24 in
Chance of precipitation65%
Record high93° (2023)
Record low74° (1968)
Sun, 3085° / 78°0.19
85 °
Greenbriar, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.19 in
Chance of precipitation62%
Record high90° (1970)
Record low73° (1969)
Mon, 3185° / 78°0.26
85 °
Greenbriar, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.26 in
Chance of precipitation63%
Record high90° (2024)
Record low75° (2024)
Tue, 0185° / 78°0.31
85 °
Greenbriar, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low78°
Average precipitation0.31 in
Chance of precipitation68%
Record high89° (2023)
Record low74° (2025)
Wed, 0285° / 77°0.2
85 °
Greenbriar, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.2 in
Chance of precipitation55%
Record high89° (2025)
Record low72° (2025)
Thu, 0384° / 77°0.17
84 °
Greenbriar, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.17 in
Chance of precipitation53%
Record high91° (2025)
Record low72° (2023)
Fri, 0485° / 77°0.18
85 °
Greenbriar, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low77°
Average precipitation0.18 in
Chance of precipitation58%
Record high91° (2025)
Record low70° (2023)
Sat, 0584° / 77°0.26
84 °
Greenbriar, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.26 in
Chance of precipitation73%
Record high94° (2025)
Record low72° (2023)
Sun, 0684° / 77°0.27
84 °
Greenbriar, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.27 in
Chance of precipitation68%
Record high91° (2025)
Record low74° (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 Greenbriar, 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 Greenbriar, 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.