Monthly outlook for Key West, IA: average high 63.3°, average low 50.2°. That is 6.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 25 October (72.5°), the coolest 9 November (34.4°).
63.3°/50.2°
Average high / low
+6.1°
Above normal
6 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
67.2°
53.8°
+7.5°
4 November – 13 November
56.8°
48.2°
+4.8°
14 November – 23 November
at normal
44.4°
—
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).
Mon, 2667° / 53°0
67 °
Key West, Monday, 26 October
Overcast. High 67°, low 53°.
Pressure30.33 inHg
Wind7.5 mph E
Humidity76%
Visibility6.2 mi
Dew point53°
Tue, 2769° / 50°0.37
69 °
Key West, Tuesday, 27 October
Heavy rain. High 69°, low 50°.
Pressure30.18 inHg
Wind9.3 mph SE
Humidity71%
Visibility6.2 mi
Dew point53°
Wed, 2870° / 56°0.37
70 °
Key West, Wednesday, 28 October
Heavy rain. High 70°, low 56°.
Pressure30.09 inHg
Wind10 mph SW
Humidity67%
Visibility6.2 mi
Dew point54°
Thu, 2964° / 53°0.5
64 °
Key West, Thursday, 29 October
Rain. High 64°, low 53°.
Pressure30.15 inHg
Wind7.9 mph SW
Humidity62%
Visibility—
Dew point49°
Fri, 3067° / 51°0.22
67 °
Key West, Friday, 30 October
Light rain. High 67°, low 51°.
Pressure30.09 inHg
Wind9.9 mph SE
Humidity79%
Visibility—
Dew point59°
Sat, 3167° / 58°0.2
67 °
Key West, Saturday, 31 October
Light rain. High 67°, low 58°.
Pressure29.97 inHg
Wind11.7 mph SW
Humidity76%
Visibility—
Dew point55°
Sun, 0168° / 59°0.25
68 °
Key West, Sunday, 1 November
Rain. High 68°, low 59°.
Pressure29.77 inHg
Wind17.8 mph SW
Humidity78%
Visibility—
Dew point59°
Mon, 0266° / 53°0
66 °
Key West, Monday, 2 November
Clear. High 66°, low 53°.
Pressure30.12 inHg
Wind6.6 mph NW
Humidity61%
Visibility—
Dew point50°
Tue, 0362° / 50°0
62 °
Key West, Tuesday, 3 November
Overcast. High 62°, low 50°.
Pressure30.09 inHg
Wind12.7 mph SE
Humidity65%
Visibility—
Dew point49°
Wed, 0461° / 49°0
61 °
Key West, Wednesday, 4 November
Light rain. High 61°, low 49°.
Pressure29.68 inHg
Wind13.1 mph W
Humidity68%
Visibility—
Dew point47°
Thu, 0553° / 44°0
53 °
Key West, Thursday, 5 November
Overcast. High 53°, low 44°.
Pressure30.09 inHg
Wind12.8 mph NW
Humidity49%
Visibility—
Dew point30°
Fri, 0662° / 42°0
62 °
Key West, Friday, 6 November
Overcast. High 62°, low 42°.
Pressure29.83 inHg
Wind16.3 mph S
Humidity61%
Visibility—
Dew point43°
Sat, 0766° / 55°0
66 °
Key West, Saturday, 7 November
Overcast. High 66°, low 55°.
Pressure29.50 inHg
Wind18.5 mph NW
Humidity64%
Visibility—
Dew point52°
Sun, 0853° / 42°0
53 °
Key West, Sunday, 8 November
Overcast. High 53°, low 42°.
Pressure30.00 inHg
Wind17.4 mph NW
Humidity49%
Visibility—
Dew point32°
Mon, 0946° / 34°0
46 °
Key West, Monday, 9 November
Clear. High 46°, low 34°.
Pressure30.30 inHg
Wind11.1 mph N
Humidity48%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1048° / 34°0.11
48 °
Key West, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.11 in
Chance of precipitation32%
Record high70° (2022)
Record low13° (2018)
Wed, 1146° / 32°0.07
46 °
Key West, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation23%
Record high69° (1964)
Record low12° (2019)
Thu, 1244° / 31°0.06
44 °
Key West, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high65° (1964)
Record low1° (2019)
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)
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.