Monthly outlook for Key West, IA: average high 57.3°, average low 46.6°. That is 4° above the climate normal for October. Precipitation is expected on 10 days (about 3.0 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 3 November (67.2°), the coolest 7 November (31.9°).
57.3°/46.6°
Average high / low
+4°
Above normal
10 / 4
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
59.3°
52°
+4.1°
8 November – 17 November
53.9°
46.3°
+4.2°
18 November – 27 November
at normal
42.2°
—
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).
Fri, 3059° / 45°0.85
59 °
Key West, Friday, 30 October
Heavy rain. High 59°, low 45°.
Pressure30.36 inHg
Wind5.7 mph E
Humidity69%
Visibility6.2 mi
Dew point42°
Sat, 3160° / 50°0.41
60 °
Key West, Saturday, 31 October
Heavy rain. High 60°, low 50°.
Pressure30.27 inHg
Wind7.4 mph SE
Humidity78%
Visibility6.2 mi
Dew point51°
Sun, 0162° / 52°0.09
62 °
Key West, Sunday, 1 November
Light rain. High 62°, low 52°.
Pressure30.27 inHg
Wind6.3 mph SE
Humidity71%
Visibility6.2 mi
Dew point51°
Mon, 0261° / 56°0.18
61 °
Key West, Monday, 2 November
Light rain. High 61°, low 56°.
Pressure29.97 inHg
Wind16.9 mph S
Humidity90%
Visibility—
Dew point56°
Tue, 0367° / 61°0.43
67 °
Key West, Tuesday, 3 November
Rain. High 67°, low 61°.
Pressure29.74 inHg
Wind17.2 mph S
Humidity83%
Visibility—
Dew point61°
Wed, 0463° / 59°0.41
63 °
Key West, Wednesday, 4 November
Rain. High 63°, low 59°.
Pressure29.77 inHg
Wind9.6 mph SE
Humidity96%
Visibility—
Dew point61°
Thu, 0560° / 51°0.24
60 °
Key West, Thursday, 5 November
Light rain. High 60°, low 51°.
Pressure29.59 inHg
Wind15.2 mph N
Humidity97%
Visibility—
Dew point55°
Fri, 0648° / 37°0.08
48 °
Key West, Friday, 6 November
Light rain. High 48°, low 37°.
Pressure29.91 inHg
Wind16.2 mph N
Humidity60%
Visibility—
Dew point32°
Sat, 0747° / 32°0
47 °
Key West, Saturday, 7 November
Overcast. High 47°, low 32°.
Pressure30.30 inHg
Wind8.4 mph NE
Humidity50%
Visibility—
Dew point26°
Sun, 0848° / 34°0
48 °
Key West, Sunday, 8 November
Overcast. High 48°, low 34°.
Pressure30.36 inHg
Wind5.3 mph S
Humidity52%
Visibility—
Dew point29°
Mon, 0951° / 42°0
51 °
Key West, Monday, 9 November
Overcast. High 51°, low 42°.
Pressure30.27 inHg
Wind5.8 mph W
Humidity65%
Visibility—
Dew point38°
Tue, 1053° / 38°0
53 °
Key West, Tuesday, 10 November
Mostly clear. High 53°, low 38°.
Pressure30.18 inHg
Wind7.9 mph W
Humidity61%
Visibility—
Dew point37°
Wed, 1158° / 42°0
58 °
Key West, Wednesday, 11 November
Clear. High 58°, low 42°.
Pressure30.06 inHg
Wind8.8 mph W
Humidity70%
Visibility—
Dew point45°
Thu, 1257° / 44°0
57 °
Key West, Thursday, 12 November
Overcast. High 57°, low 44°.
Pressure29.74 inHg
Wind18.1 mph SE
Humidity65%
Visibility—
Dew point43°
Fri, 1357° / 53°0.21
57 °
Key West, Friday, 13 November
Rain. High 57°, low 53°.
Pressure29.47 inHg
Wind17.5 mph S
Humidity84%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 2739° / 27°0.13
39 °
Key West, Friday, 27 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.13 in
Chance of precipitation48%
Record high65° (1990)
Record low3° (1996)
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.