Monthly outlook for Cosmo, FL: average high 82.4°, average low 72.8°. That is 2.9° above the climate normal for October. Precipitation is expected on 9 days (about 2.5 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 14 October (89.6°), the coolest 12 October (66.4°).
82.4°/72.8°
Average high / low
+2.9°
Above normal
9 / 5
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
83.6°
77.9°
+3.2°
18 October – 27 October
80.6°
75.6°
+2.7°
28 October – 6 November
at normal
73.7°
—
October records over 66 years
89.1°11 October 2018All-time high
45.5°30 October 2017All-time low
Climate normals and records are computed from the nearest reference point — Jacksonville Beach (9 mi).
Fri, 0983° / 78°0.56
83 °
Cosmo, Friday, 9 October
Rain. High 83°, low 78°.
Pressure30.03 inHg
Wind5.7 mph NE
Humidity92%
Visibility3.3 mi
Dew point75°
Sat, 1084° / 74°0.35
84 °
Cosmo, Saturday, 10 October
Rain. High 84°, low 74°.
Pressure30.03 inHg
Wind8.5 mph SE
Humidity76%
Visibility6.2 mi
Dew point75°
Sun, 1179° / 75°0.87
79 °
Cosmo, Sunday, 11 October
Heavy rain. High 79°, low 75°.
Pressure30.09 inHg
Wind9.4 mph SW
Humidity90%
Visibility6.2 mi
Dew point75°
Mon, 1284° / 66°0
84 °
Cosmo, Monday, 12 October
Overcast. High 84°, low 66°.
Pressure30.00 inHg
Wind9.1 mph NW
Humidity51%
Visibility—
Dew point60°
Tue, 1385° / 67°0
85 °
Cosmo, Tuesday, 13 October
Clear. High 85°, low 67°.
Pressure29.97 inHg
Wind5.3 mph NW
Humidity54%
Visibility—
Dew point64°
Wed, 1490° / 70°0
90 °
Cosmo, Wednesday, 14 October
Clear. High 90°, low 70°.
Pressure29.97 inHg
Wind8.1 mph E
Humidity37%
Visibility—
Dew point57°
Thu, 1586° / 74°0
86 °
Cosmo, Thursday, 15 October
Clear. High 86°, low 74°.
Pressure30.12 inHg
Wind11.6 mph E
Humidity53%
Visibility—
Dew point65°
Fri, 1682° / 76°0
82 °
Cosmo, Friday, 16 October
Partly cloudy. High 82°, low 76°.
Pressure30.15 inHg
Wind11.8 mph NE
Humidity57%
Visibility—
Dew point64°
Sat, 1784° / 77°0
84 °
Cosmo, Saturday, 17 October
Partly cloudy. High 84°, low 77°.
Pressure30.09 inHg
Wind11.9 mph NE
Humidity53%
Visibility—
Dew point64°
Sun, 1878° / 73°0.15
78 °
Cosmo, Sunday, 18 October
Light rain. High 78°, low 73°.
Pressure30.24 inHg
Wind21.4 mph NE
Humidity55%
Visibility—
Dew point59°
Mon, 1977° / 73°0.11
77 °
Cosmo, Monday, 19 October
Light rain. High 77°, low 73°.
Pressure30.24 inHg
Wind14.7 mph E
Humidity59%
Visibility—
Dew point61°
Tue, 2082° / 73°0.13
82 °
Cosmo, Tuesday, 20 October
Light rain. High 82°, low 73°.
Pressure30.18 inHg
Wind11.9 mph E
Humidity52%
Visibility—
Dew point61°
Wed, 2180° / 72°0.1
80 °
Cosmo, Wednesday, 21 October
Light rain. High 80°, low 72°.
Pressure30.06 inHg
Wind8.3 mph E
Humidity61%
Visibility—
Dew point65°
Thu, 2283° / 73°0.01
83 °
Cosmo, Thursday, 22 October
Light rain. High 83°, low 73°.
Pressure30.00 inHg
Wind7.5 mph E
Humidity56%
Visibility—
Dew point65°
Fri, 2383° / 73°0.06
83 °
Cosmo, Friday, 23 October
Light rain. High 83°, low 73°.
Pressure30.03 inHg
Wind8.9 mph NE
Humidity65%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2475° / 67°0.1
75 °
Cosmo, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high75°
Average low67°
Average precipitation0.1 in
Chance of precipitation22%
Record high82° (2001)
Record low53° (2006)
Sun, 2575° / 66°0.05
75 °
Cosmo, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.05 in
Chance of precipitation28%
Record high84° (2001)
Record low51° (2005)
Mon, 2675° / 66°0.06
75 °
Cosmo, Monday, 26 October
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.06 in
Chance of precipitation25%
Record high83° (2010)
Record low50° (2017)
Tue, 2775° / 66°0.07
75 °
Cosmo, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.07 in
Chance of precipitation23%
Record high85° (2019)
Record low48° (2017)
Wed, 2875° / 66°0.1
75 °
Cosmo, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high75°
Average low66°
Average precipitation0.1 in
Chance of precipitation33%
Record high84° (2010)
Record low48° (2008)
Thu, 2974° / 65°0.12
74 °
Cosmo, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.12 in
Chance of precipitation28%
Record high87° (2020)
Record low47° (2008)
Fri, 3074° / 65°0.06
74 °
Cosmo, Friday, 30 October
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.06 in
Chance of precipitation27%
Record high83° (2019)
Record low46° (2017)
Sat, 3174° / 66°0.1
74 °
Cosmo, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high74°
Average low66°
Average precipitation0.1 in
Chance of precipitation27%
Record high87° (2019)
Record low46° (2017)
Sun, 0174° / 65°0.05
74 °
Cosmo, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.05 in
Chance of precipitation28%
Record high83° (1961)
Record low43° (1993)
Mon, 0274° / 65°0.07
74 °
Cosmo, Monday, 2 November
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.07 in
Chance of precipitation30%
Record high83° (2015)
Record low47° (2014)
Tue, 0373° / 64°0.06
73 °
Cosmo, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high73°
Average low64°
Average precipitation0.06 in
Chance of precipitation28%
Record high82° (2015)
Record low42° (1966)
Wed, 0473° / 63°0.09
73 °
Cosmo, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.09 in
Chance of precipitation25%
Record high83° (2004)
Record low45° (1966)
Thu, 0572° / 64°0.13
72 °
Cosmo, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high72°
Average low64°
Average precipitation0.13 in
Chance of precipitation27%
Record high81° (2024)
Record low45° (1970)
Fri, 0672° / 63°0.13
72 °
Cosmo, Friday, 6 November
Climate normal for this date — 60-year average.
Average high72°
Average low63°
Average precipitation0.13 in
Chance of precipitation22%
Record high83° (2018)
Record low47° (2021)
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 Cosmo, 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 Cosmo, 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.