Monthly outlook for Arran, FL: average high 84.2°, average low 67.1°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 6.5 inches), against a normal of 3 days and 1.2 inches. The warmest day looks like 18 October (91.1°), the coolest 22 October (54.4°).
84.2°/67.1°
Average high / low
+2.3°
Above normal
3 / 3
Wet days / normal
6.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
84.8°
81.1°
+2.1°
17 October – 26 October
83°
78°
+2.8°
27 October – 5 November
at normal
75.4°
—
October records over 66 years
92.8°4 October 1971All-time high
39.6°20 October 2022All-time low
Climate normals and records are computed from the nearest reference point — St. Marks (13 mi).
Thu, 0889° / 72°0
89 °
Arran, Thursday, 8 October
Light rain. High 89°, low 72°.
Pressure29.97 inHg
Wind9.6 mph NE
Humidity65%
Visibility6.2 mi
Dew point69°
Fri, 0977° / 72°1.89
77 °
Arran, Friday, 9 October
Heavy rain. High 77°, low 72°.
Pressure30.03 inHg
Wind9.5 mph E
Humidity99%
Visibility1.5 mi
Dew point74°
Sat, 1079° / 72°3.92
79 °
Arran, Saturday, 10 October
Heavy rain. High 79°, low 72°.
Pressure29.97 inHg
Wind9.8 mph E
Humidity99%
Visibility1.6 mi
Dew point74°
Sun, 1181° / 74°0.71
81 °
Arran, Sunday, 11 October
Rain. High 81°, low 74°.
Pressure30.00 inHg
Wind4.2 mph S
Humidity97%
Visibility3.2 mi
Dew point77°
Mon, 1287° / 69°0
87 °
Arran, Monday, 12 October
Overcast. High 87°, low 69°.
Pressure30.00 inHg
Wind4.6 mph NW
Humidity42%
Visibility—
Dew point59°
Tue, 1389° / 65°0
89 °
Arran, Tuesday, 13 October
Clear. High 89°, low 65°.
Pressure30.00 inHg
Wind5 mph NW
Humidity32%
Visibility—
Dew point52°
Wed, 1489° / 65°0
89 °
Arran, Wednesday, 14 October
Clear. High 89°, low 65°.
Pressure29.97 inHg
Wind4.3 mph N
Humidity33%
Visibility—
Dew point53°
Thu, 1589° / 70°0
89 °
Arran, Thursday, 15 October
Partly cloudy. High 89°, low 70°.
Pressure30.00 inHg
Wind5.7 mph S
Humidity48%
Visibility—
Dew point65°
Fri, 1689° / 70°0
89 °
Arran, Friday, 16 October
Clear. High 89°, low 70°.
Pressure29.91 inHg
Wind3.2 mph NW
Humidity43%
Visibility—
Dew point61°
Sat, 1790° / 68°0
90 °
Arran, Saturday, 17 October
Clear. High 90°, low 68°.
Pressure29.88 inHg
Wind4.3 mph S
Humidity40%
Visibility—
Dew point59°
Sun, 1891° / 70°0.01
91 °
Arran, Sunday, 18 October
Light rain. High 91°, low 70°.
Pressure29.94 inHg
Wind6.8 mph S
Humidity43%
Visibility—
Dew point63°
Mon, 1985° / 67°0
85 °
Arran, Monday, 19 October
Overcast. High 85°, low 67°.
Pressure30.06 inHg
Wind6.4 mph N
Humidity41%
Visibility—
Dew point54°
Tue, 2081° / 60°0
81 °
Arran, Tuesday, 20 October
Clear. High 81°, low 60°.
Pressure30.09 inHg
Wind8.2 mph N
Humidity28%
Visibility—
Dew point42°
Wed, 2177° / 55°0
77 °
Arran, Wednesday, 21 October
Partly cloudy. High 77°, low 55°.
Pressure30.03 inHg
Wind8.3 mph N
Humidity26%
Visibility—
Dew point37°
Thu, 2275° / 54°0
75 °
Arran, Thursday, 22 October
Clear. High 75°, low 54°.
Pressure30.00 inHg
Wind7.2 mph NE
Humidity29%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2378° / 61°0.1
78 °
Arran, Friday, 23 October
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.1 in
Chance of precipitation22%
Record high85° (1985)
Record low47° (2022)
Sat, 2478° / 60°0.06
78 °
Arran, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.06 in
Chance of precipitation18%
Record high86° (2024)
Record low47° (2006)
Sun, 2577° / 60°0.06
77 °
Arran, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.06 in
Chance of precipitation23%
Record high86° (2024)
Record low46° (1965)
Mon, 2677° / 60°0.04
77 °
Arran, Monday, 26 October
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.04 in
Chance of precipitation15%
Record high88° (2024)
Record low45° (1965)
Tue, 2777° / 60°0.11
77 °
Arran, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.11 in
Chance of precipitation22%
Record high87° (2024)
Record low47° (1965)
Wed, 2876° / 60°0.11
76 °
Arran, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation23%
Record high87° (1963)
Record low44° (2001)
Thu, 2976° / 59°0.06
76 °
Arran, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.06 in
Chance of precipitation20%
Record high85° (2016)
Record low41° (2008)
Fri, 3076° / 59°0.12
76 °
Arran, Friday, 30 October
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.12 in
Chance of precipitation18%
Record high86° (1961)
Record low42° (2017)
Sat, 3176° / 60°0.06
76 °
Arran, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.06 in
Chance of precipitation15%
Record high87° (2016)
Record low43° (2025)
Sun, 0176° / 59°0.07
76 °
Arran, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.07 in
Chance of precipitation15%
Record high87° (1961)
Record low37° (1993)
Mon, 0275° / 58°0.04
75 °
Arran, Monday, 2 November
Climate normal for this date — 60-year average.
Average high75°
Average low58°
Average precipitation0.04 in
Chance of precipitation15%
Record high85° (2024)
Record low40° (1993)
Tue, 0374° / 58°0.06
74 °
Arran, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0.06 in
Chance of precipitation22%
Record high85° (2024)
Record low37° (1966)
Wed, 0474° / 57°0.14
74 °
Arran, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0.14 in
Chance of precipitation22%
Record high87° (2016)
Record low36° (1966)
Thu, 0573° / 57°0.04
73 °
Arran, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0.04 in
Chance of precipitation22%
Record high86° (2024)
Record low39° (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 Arran, 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 Arran, 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.