Monthly outlook for Saint John, KY: average high 69.3°, average low 46.9°. That is 1.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (85.2°), the coolest 18 October (28.6°).
69.3°/46.9°
Average high / low
+1.4°
Above normal
4 / 4
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
69.3°
67.8°
+0.8°
21 October – 30 October
69.3°
64.3°
+2.8°
31 October – 9 November
at normal
60.5°
—
October records over 66 years
93.2°2 October 2019All-time high
28.2°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Sonora (12 mi).
Mon, 1282° / 52°0
82 °
Saint John, Monday, 12 October
Overcast. High 82°, low 52°.
Pressure30.06 inHg
Wind7.3 mph SW
Humidity61%
Visibility6.2 mi
Dew point62°
Tue, 1384° / 64°0
84 °
Saint John, Tuesday, 13 October
Clear. High 84°, low 64°.
Pressure30.00 inHg
Wind10.7 mph SW
Humidity51%
Visibility6.2 mi
Dew point59°
Wed, 1485° / 66°0.05
85 °
Saint John, Wednesday, 14 October
Light rain. High 85°, low 66°.
Pressure30.06 inHg
Wind8.4 mph SW
Humidity55%
Visibility6.2 mi
Dew point64°
Thu, 1579° / 69°0.82
79 °
Saint John, Thursday, 15 October
Rain. High 79°, low 69°.
Pressure30.09 inHg
Wind7.9 mph S
Humidity80%
Visibility—
Dew point70°
Fri, 1672° / 50°0.12
72 °
Saint John, Friday, 16 October
Light rain. High 72°, low 50°.
Pressure30.18 inHg
Wind14.9 mph N
Humidity64%
Visibility—
Dew point55°
Sat, 1743° / 34°0
43 °
Saint John, Saturday, 17 October
Overcast. High 43°, low 34°.
Pressure30.24 inHg
Wind17.3 mph NW
Humidity45%
Visibility—
Dew point21°
Sun, 1850° / 29°0
50 °
Saint John, Sunday, 18 October
Clear. High 50°, low 29°.
Pressure30.50 inHg
Wind9.3 mph N
Humidity28%
Visibility—
Dew point15°
Mon, 1959° / 30°0
59 °
Saint John, Monday, 19 October
Clear. High 59°, low 30°.
Pressure30.45 inHg
Wind6.7 mph S
Humidity18%
Visibility—
Dew point10°
Tue, 2067° / 37°0
67 °
Saint John, Tuesday, 20 October
Clear. High 67°, low 37°.
Pressure30.33 inHg
Wind7.7 mph S
Humidity25%
Visibility—
Dew point25°
Wed, 2170° / 42°0
70 °
Saint John, Wednesday, 21 October
Clear. High 70°, low 42°.
Pressure30.33 inHg
Wind7.1 mph S
Humidity23%
Visibility—
Dew point27°
Thu, 2274° / 50°0
74 °
Saint John, Thursday, 22 October
Partly cloudy. High 74°, low 50°.
Pressure30.33 inHg
Wind5.5 mph SW
Humidity22%
Visibility—
Dew point29°
Fri, 2372° / 49°0
72 °
Saint John, Friday, 23 October
Clear. High 72°, low 49°.
Pressure30.30 inHg
Wind8.3 mph NE
Humidity41%
Visibility—
Dew point43°
Sat, 2478° / 50°0
78 °
Saint John, Saturday, 24 October
Overcast. High 78°, low 50°.
Pressure30.12 inHg
Wind14.8 mph SW
Humidity30%
Visibility—
Dew point40°
Sun, 2560° / 39°0
60 °
Saint John, Sunday, 25 October
Clear. High 60°, low 39°.
Pressure30.30 inHg
Wind7.9 mph N
Humidity35%
Visibility—
Dew point29°
Mon, 2661° / 36°0
61 °
Saint John, Monday, 26 October
Clear. High 61°, low 36°.
Pressure30.15 inHg
Wind8.1 mph W
Humidity29%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2763° / 47°0.13
63 °
Saint John, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.13 in
Chance of precipitation28%
Record high82° (1963)
Record low31° (1962)
Wed, 2863° / 47°0.11
63 °
Saint John, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.11 in
Chance of precipitation33%
Record high78° (1971)
Record low29° (1976)
Thu, 2963° / 46°0.12
63 °
Saint John, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.12 in
Chance of precipitation22%
Record high80° (2016)
Record low29° (1976)
Fri, 3064° / 47°0.11
64 °
Saint John, Friday, 30 October
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.11 in
Chance of precipitation25%
Record high81° (2016)
Record low31° (2017)
Sat, 3165° / 48°0.11
65 °
Saint John, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.11 in
Chance of precipitation32%
Record high77° (1974)
Record low29° (2023)
Sun, 0164° / 48°0.15
64 °
Saint John, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.15 in
Chance of precipitation37%
Record high82° (2016)
Record low24° (1993)
Mon, 0262° / 46°0.11
62 °
Saint John, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high81° (2016)
Record low29° (2020)
Tue, 0360° / 44°0.07
60 °
Saint John, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.07 in
Chance of precipitation30%
Record high78° (2003)
Record low21° (1966)
Wed, 0460° / 44°0.06
60 °
Saint John, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.06 in
Chance of precipitation23%
Record high77° (2003)
Record low20° (1966)
Thu, 0559° / 44°0.1
59 °
Saint John, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.1 in
Chance of precipitation28%
Record high76° (1977)
Record low20° (1991)
Fri, 0658° / 43°0.14
58 °
Saint John, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.14 in
Chance of precipitation35%
Record high73° (1975)
Record low27° (1967)
Sat, 0758° / 44°0.17
58 °
Saint John, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.17 in
Chance of precipitation33%
Record high74° (2023)
Record low29° (1971)
Sun, 0859° / 43°0.06
59 °
Saint John, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation15%
Record high79° (2023)
Record low24° (2019)
Mon, 0960° / 43°0.14
60 °
Saint John, Monday, 9 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.14 in
Chance of precipitation27%
Record high76° (2020)
Record low23° (1991)
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 Saint John, KY 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 Saint John, KY 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.