Monthly outlook for Key, TX: average high 78.2°, average low 62.1°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 11 October (93.2°), the coolest 17 October (53.6°).
78.2°/62.1°
Average high / low
+1°
Above normal
3 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
85.4°
77.4°
+4.4°
17 October – 26 October
66.1°
74.1°
-4.5°
27 October – 5 November
at normal
69.7°
—
October records over 66 years
99.9°2 October 2000All-time high
21.9°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Klondike (15 mi).
Thu, 0887° / 62°0
87 °
Key, Thursday, 8 October
Clear. High 87°, low 62°.
Pressure30.06 inHg
Wind2 mph W
Humidity32%
Visibility6.2 mi
Dew point49°
Fri, 0986° / 61°0
86 °
Key, Friday, 9 October
Clear. High 86°, low 61°.
Pressure30.03 inHg
Wind5.5 mph S
Humidity29%
Visibility6.2 mi
Dew point45°
Sat, 1087° / 61°0
87 °
Key, Saturday, 10 October
Clear. High 87°, low 61°.
Pressure29.94 inHg
Wind8.5 mph S
Humidity37%
Visibility6.2 mi
Dew point52°
Sun, 1193° / 66°0
93 °
Key, Sunday, 11 October
Clear. High 93°, low 66°.
Pressure29.88 inHg
Wind11.8 mph S
Humidity30%
Visibility6.2 mi
Dew point49°
Mon, 1293° / 69°0
93 °
Key, Monday, 12 October
Partly cloudy. High 93°, low 69°.
Pressure29.88 inHg
Wind13.2 mph S
Humidity40%
Visibility—
Dew point58°
Tue, 1383° / 67°0
83 °
Key, Tuesday, 13 October
Clear. High 83°, low 67°.
Pressure29.94 inHg
Wind16.2 mph S
Humidity51%
Visibility—
Dew point61°
Wed, 1484° / 69°0.04
84 °
Key, Wednesday, 14 October
Light rain. High 84°, low 69°.
Pressure29.77 inHg
Wind32.6 mph S
Humidity61%
Visibility—
Dew point62°
Thu, 1585° / 67°0
85 °
Key, Thursday, 15 October
Clear. High 85°, low 67°.
Pressure29.83 inHg
Wind21.2 mph SW
Humidity35%
Visibility—
Dew point50°
Fri, 1671° / 60°0
71 °
Key, Friday, 16 October
Light rain. High 71°, low 60°.
Pressure30.09 inHg
Wind22 mph NE
Humidity26%
Visibility—
Dew point31°
Sat, 1760° / 54°0
60 °
Key, Saturday, 17 October
Overcast. High 60°, low 54°.
Pressure30.15 inHg
Wind16.8 mph E
Humidity34%
Visibility—
Dew point29°
Sun, 1857° / 54°0.01
57 °
Key, Sunday, 18 October
Light rain. High 57°, low 54°.
Pressure30.18 inHg
Wind13.8 mph E
Humidity50%
Visibility—
Dew point37°
Mon, 1970° / 55°0
70 °
Key, Monday, 19 October
Overcast. High 70°, low 55°.
Pressure30.18 inHg
Wind12.2 mph S
Humidity52%
Visibility—
Dew point45°
Tue, 2070° / 61°0
70 °
Key, Tuesday, 20 October
Overcast. High 70°, low 61°.
Pressure30.15 inHg
Wind13.8 mph S
Humidity72%
Visibility—
Dew point57°
Wed, 2168° / 63°0.12
68 °
Key, Wednesday, 21 October
Light rain. High 68°, low 63°.
Pressure30.06 inHg
Wind12.7 mph SE
Humidity83%
Visibility—
Dew point60°
Thu, 2272° / 63°0.61
72 °
Key, Thursday, 22 October
Rain. High 72°, low 63°.
Pressure29.88 inHg
Wind14.4 mph SE
Humidity92%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2373° / 52°0.09
73 °
Key, Friday, 23 October
Climate normal for this date — 60-year average.
Average high73°
Average low52°
Average precipitation0.09 in
Chance of precipitation18%
Record high89° (2021)
Record low36° (2008)
Sat, 2473° / 51°0.07
73 °
Key, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high73°
Average low51°
Average precipitation0.07 in
Chance of precipitation18%
Record high92° (2024)
Record low39° (1981)
Sun, 2573° / 51°0.07
73 °
Key, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high73°
Average low51°
Average precipitation0.07 in
Chance of precipitation10%
Record high89° (2011)
Record low35° (2019)
Mon, 2673° / 51°0.04
73 °
Key, Monday, 26 October
Climate normal for this date — 60-year average.
Average high73°
Average low51°
Average precipitation0.04 in
Chance of precipitation17%
Record high91° (2021)
Record low28° (2020)
Tue, 2771° / 50°0.08
71 °
Key, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high71°
Average low50°
Average precipitation0.08 in
Chance of precipitation23%
Record high89° (2024)
Record low26° (2020)
Wed, 2870° / 49°0.09
70 °
Key, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high70°
Average low49°
Average precipitation0.09 in
Chance of precipitation17%
Record high87° (2024)
Record low30° (2020)
Thu, 2972° / 49°0.02
72 °
Key, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.02 in
Chance of precipitation10%
Record high87° (1987)
Record low33° (1980)
Fri, 3071° / 50°0.02
71 °
Key, Friday, 30 October
Climate normal for this date — 60-year average.
Average high71°
Average low50°
Average precipitation0.02 in
Chance of precipitation15%
Record high85° (1968)
Record low28° (1993)
Sat, 3170° / 48°0.05
70 °
Key, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.05 in
Chance of precipitation15%
Record high87° (2016)
Record low22° (2019)
Sun, 0169° / 47°0.02
69 °
Key, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.02 in
Chance of precipitation12%
Record high88° (2016)
Record low31° (1991)
Mon, 0268° / 47°0.04
68 °
Key, Monday, 2 November
Climate normal for this date — 60-year average.
Average high68°
Average low47°
Average precipitation0.04 in
Chance of precipitation15%
Record high83° (2017)
Record low28° (1991)
Tue, 0368° / 46°0.06
68 °
Key, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high68°
Average low46°
Average precipitation0.06 in
Chance of precipitation18%
Record high86° (2005)
Record low23° (1991)
Wed, 0469° / 47°0.07
69 °
Key, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.07 in
Chance of precipitation23%
Record high85° (2005)
Record low26° (1991)
Thu, 0570° / 47°0.04
70 °
Key, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.04 in
Chance of precipitation8%
Record high85° (2017)
Record low31° (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, TX 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, TX 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.