Monthly outlook for Key West, IA: average high 54.8°, average low 43.9°. That is 2.3° above the climate normal for October. Precipitation is expected on 7 days (about 3.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (72.7°), the coolest 12 November (28.2°).
54.8°/43.9°
Average high / low
+2.3°
Above normal
7 / 4
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
60.3°
52.4°
+4.4°
7 November – 16 November
45.6°
46.7°
-0.6°
17 November – 26 November
at normal
42.9°
—
October records over 66 years
86.9°3 October 2025All-time high
18.9°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Bernard (12 mi).
Thu, 2966° / 49°0
66 °
Key West, Thursday, 29 October
Clear. High 66°, low 49°.
Pressure30.15 inHg
Wind8.2 mph N
Humidity57%
Visibility6.2 mi
Dew point46°
Fri, 3056° / 44°0.2
56 °
Key West, Friday, 30 October
Rain. High 56°, low 44°.
Pressure30.30 inHg
Wind6.1 mph SE
Humidity60%
Visibility6.2 mi
Dew point42°
Sat, 3159° / 51°0.43
59 °
Key West, Saturday, 31 October
Heavy rain. High 59°, low 51°.
Pressure30.27 inHg
Wind5 mph E
Humidity82%
Visibility6.2 mi
Dew point53°
Sun, 0164° / 49°0
64 °
Key West, Sunday, 1 November
Overcast. High 64°, low 49°.
Pressure30.30 inHg
Wind7.1 mph SE
Humidity78%
Visibility—
Dew point52°
Mon, 0264° / 53°0.01
64 °
Key West, Monday, 2 November
Light rain. High 64°, low 53°.
Pressure30.06 inHg
Wind13.5 mph SE
Humidity78%
Visibility—
Dew point55°
Tue, 0360° / 55°1.04
60 °
Key West, Tuesday, 3 November
Rain. High 60°, low 55°.
Pressure29.88 inHg
Wind17.6 mph E
Humidity96%
Visibility—
Dew point55°
Wed, 0456° / 55°0.52
56 °
Key West, Wednesday, 4 November
Rain. High 56°, low 55°.
Pressure29.77 inHg
Wind12.3 mph E
Humidity97%
Visibility—
Dew point55°
Thu, 0556° / 48°0.07
56 °
Key West, Thursday, 5 November
Light rain. High 56°, low 48°.
Pressure29.74 inHg
Wind13.7 mph N
Humidity88%
Visibility—
Dew point51°
Fri, 0649° / 38°0
49 °
Key West, Friday, 6 November
Overcast. High 49°, low 38°.
Pressure30.06 inHg
Wind10.1 mph N
Humidity47%
Visibility—
Dew point28°
Sat, 0747° / 36°0
47 °
Key West, Saturday, 7 November
Overcast. High 47°, low 36°.
Pressure30.33 inHg
Wind6.9 mph NE
Humidity54%
Visibility—
Dew point29°
Sun, 0849° / 32°0
49 °
Key West, Sunday, 8 November
Partly cloudy. High 49°, low 32°.
Pressure30.36 inHg
Wind8.9 mph S
Humidity56%
Visibility—
Dew point30°
Mon, 0944° / 39°0.2
44 °
Key West, Monday, 9 November
Light rain. High 44°, low 39°.
Pressure30.12 inHg
Wind13.7 mph SE
Humidity71%
Visibility—
Dew point35°
Tue, 1045° / 40°0.64
45 °
Key West, Tuesday, 10 November
Rain. High 45°, low 40°.
Pressure29.94 inHg
Wind20.2 mph NE
Humidity95%
Visibility—
Dew point44°
Wed, 1144° / 33°0.01
44 °
Key West, Wednesday, 11 November
Light rain. High 44°, low 33°.
Pressure30.21 inHg
Wind18.1 mph NE
Humidity61%
Visibility—
Dew point29°
Thu, 1244° / 28°0
44 °
Key West, Thursday, 12 November
Clear. High 44°, low 28°.
Pressure30.18 inHg
Wind11.5 mph NE
Humidity60%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1345° / 31°0.06
45 °
Key West, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1999)
Record low5° (1986)
Sat, 1446° / 32°0.04
46 °
Key West, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.04 in
Chance of precipitation27%
Record high67° (2025)
Record low14° (1986)
Sun, 1546° / 32°0.06
46 °
Key West, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation27%
Record high67° (2001)
Record low14° (1995)
Mon, 1646° / 32°0.06
46 °
Key West, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high62° (1988)
Record low17° (1997)
Tue, 1746° / 33°0.11
46 °
Key West, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation20%
Record high70° (2016)
Record low12° (2005)
Wed, 1846° / 33°0.09
46 °
Key West, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation28%
Record high68° (1999)
Record low9° (2014)
Thu, 1945° / 31°0.06
45 °
Key West, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high63° (1999)
Record low12° (1986)
Fri, 2043° / 31°0.1
43 °
Key West, Friday, 20 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.1 in
Chance of precipitation30%
Record high63° (2003)
Record low13° (2022)
Sat, 2142° / 29°0.09
42 °
Key West, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.09 in
Chance of precipitation18%
Record high66° (1990)
Record low6° (1964)
Sun, 2242° / 29°0.03
42 °
Key West, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high62° (2012)
Record low2° (2015)
Mon, 2342° / 29°0.1
42 °
Key West, Monday, 23 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.1 in
Chance of precipitation32%
Record high63° (1966)
Record low9° (1970)
Tue, 2441° / 28°0.07
41 °
Key West, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation23%
Record high60° (2017)
Record low5° (1985)
Wed, 2541° / 29°0.06
41 °
Key West, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high55° (1998)
Record low3° (1977)
Thu, 2641° / 28°0.09
41 °
Key West, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.09 in
Chance of precipitation33%
Record high64° (1990)
Record low-7° (1977)
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 Key West, IA 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 Key West, IA 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.