Monthly outlook for Harper, FL: average high 81.8°, average low 68.3°. That is 2.2° above the climate normal for October. Precipitation is expected on 2 days (about 5.1 inches), against a normal of 3 days and 1.4 inches. The warmest day looks like 13 October (86.4°), the coolest 9 October (65.2°).
81.8°/68.3°
Average high / low
+2.2°
Above normal
2 / 3
Wet days / normal
5.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
82.7°
78.9°
+2.1°
18 October – 27 October
80.2°
75.7°
+2.5°
28 October – 6 November
at normal
72.8°
—
October records over 66 years
92.8°1 October 2019All-time high
40.1°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Mary Esther (13 mi).
Fri, 0976° / 65°4.98
76 °
Harper, Friday, 9 October
Heavy rain. High 76°, low 65°.
Pressure29.88 inHg
Wind18.9 mph NE
Humidity96%
Visibility1.1 mi
Dew point68°
Sat, 1080° / 66°0.02
80 °
Harper, Saturday, 10 October
Light rain. High 80°, low 66°.
Pressure29.83 inHg
Wind16.7 mph SW
Humidity60%
Visibility6.2 mi
Dew point65°
Sun, 1182° / 67°0
82 °
Harper, Sunday, 11 October
Clear. High 82°, low 67°.
Pressure30.12 inHg
Wind5.7 mph SW
Humidity55%
Visibility6.2 mi
Dew point64°
Mon, 1285° / 70°0
85 °
Harper, Monday, 12 October
Partly cloudy. High 85°, low 70°.
Pressure30.09 inHg
Wind3.3 mph SW
Humidity65%
Visibility6.2 mi
Dew point70°
Tue, 1386° / 66°0
86 °
Harper, Tuesday, 13 October
Clear. High 86°, low 66°.
Pressure30.03 inHg
Wind7.9 mph SW
Humidity48%
Visibility—
Dew point62°
Wed, 1484° / 66°0
84 °
Harper, Wednesday, 14 October
Clear. High 84°, low 66°.
Pressure30.00 inHg
Wind7.7 mph S
Humidity56%
Visibility—
Dew point64°
Thu, 1584° / 73°0
84 °
Harper, Thursday, 15 October
Clear. High 84°, low 73°.
Pressure30.06 inHg
Wind8.7 mph S
Humidity52%
Visibility—
Dew point63°
Fri, 1683° / 71°0
83 °
Harper, Friday, 16 October
Clear. High 83°, low 71°.
Pressure30.06 inHg
Wind10.6 mph SE
Humidity59%
Visibility—
Dew point66°
Sat, 1784° / 73°0.02
84 °
Harper, Saturday, 17 October
Light rain. High 84°, low 73°.
Pressure30.06 inHg
Wind9.2 mph NE
Humidity63%
Visibility—
Dew point66°
Sun, 1884° / 71°0
84 °
Harper, Sunday, 18 October
Mostly clear. High 84°, low 71°.
Pressure30.09 inHg
Wind14 mph E
Humidity53%
Visibility—
Dew point64°
Mon, 1980° / 67°0
80 °
Harper, Monday, 19 October
Clear. High 80°, low 67°.
Pressure30.15 inHg
Wind15.9 mph E
Humidity58%
Visibility—
Dew point62°
Tue, 2081° / 67°0
81 °
Harper, Tuesday, 20 October
Partly cloudy. High 81°, low 67°.
Pressure30.15 inHg
Wind16.6 mph E
Humidity56%
Visibility—
Dew point62°
Wed, 2180° / 67°0
80 °
Harper, Wednesday, 21 October
Partly cloudy. High 80°, low 67°.
Pressure30.12 inHg
Wind13.4 mph E
Humidity56%
Visibility—
Dew point61°
Thu, 2274° / 68°0.01
74 °
Harper, Thursday, 22 October
Light rain. High 74°, low 68°.
Pressure30.06 inHg
Wind11.9 mph N
Humidity71%
Visibility—
Dew point63°
Fri, 2381° / 68°0.05
81 °
Harper, Friday, 23 October
Light rain. High 81°, low 68°.
Pressure29.97 inHg
Wind15.5 mph N
Humidity62%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2475° / 61°0.13
75 °
Harper, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.13 in
Chance of precipitation23%
Record high85° (2024)
Record low48° (1999)
Sun, 2575° / 61°0.09
75 °
Harper, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.09 in
Chance of precipitation22%
Record high85° (2024)
Record low47° (2005)
Mon, 2675° / 60°0.15
75 °
Harper, Monday, 26 October
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation18%
Record high86° (2024)
Record low47° (2005)
Tue, 2775° / 60°0.15
75 °
Harper, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.15 in
Chance of precipitation23%
Record high86° (2024)
Record low49° (1976)
Wed, 2874° / 60°0.14
74 °
Harper, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.14 in
Chance of precipitation22%
Record high85° (1963)
Record low44° (2008)
Thu, 2974° / 60°0.16
74 °
Harper, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.16 in
Chance of precipitation22%
Record high84° (2000)
Record low42° (2008)
Fri, 3074° / 60°0.1
74 °
Harper, Friday, 30 October
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.1 in
Chance of precipitation20%
Record high84° (2016)
Record low46° (2008)
Sat, 3174° / 60°0.1
74 °
Harper, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.1 in
Chance of precipitation22%
Record high85° (2016)
Record low40° (1993)
Sun, 0173° / 59°0.14
73 °
Harper, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high73°
Average low59°
Average precipitation0.14 in
Chance of precipitation27%
Record high83° (1998)
Record low37° (1993)
Mon, 0273° / 59°0.11
73 °
Harper, Monday, 2 November
Climate normal for this date — 60-year average.
Average high73°
Average low59°
Average precipitation0.11 in
Chance of precipitation27%
Record high83° (2024)
Record low41° (1966)
Tue, 0372° / 57°0.1
72 °
Harper, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.1 in
Chance of precipitation25%
Record high82° (2012)
Record low34° (1966)
Wed, 0471° / 57°0.11
71 °
Harper, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high71°
Average low57°
Average precipitation0.11 in
Chance of precipitation18%
Record high85° (2016)
Record low37° (1991)
Thu, 0571° / 57°0.07
71 °
Harper, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high71°
Average low57°
Average precipitation0.07 in
Chance of precipitation27%
Record high83° (1961)
Record low36° (1991)
Fri, 0671° / 57°0.07
71 °
Harper, Friday, 6 November
Climate normal for this date — 60-year average.
Average high71°
Average low57°
Average precipitation0.07 in
Chance of precipitation23%
Record high81° (2003)
Record low40° (1991)
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 Harper, 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 Harper, 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.