Monthly outlook for Alton, OH: average high 66.2°, average low 49.7°. That is 5.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 1 November (73°), the coolest 25 October (37.4°).
66.2°/49.7°
Average high / low
+5.3°
Above normal
3 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
69.8°
58.1°
+6.5°
4 November – 13 November
60.2°
52.7°
+4.1°
14 November – 23 November
at normal
48.9°
—
October records over 66 years
90°1 October 2019All-time high
22.6°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Lincoln Village (2 mi).
Mon, 2672° / 42°0
72 °
Alton, Monday, 26 October
Partly cloudy. High 72°, low 42°.
Pressure30.36 inHg
Wind2.1 mph W
Humidity53%
Visibility6.2 mi
Dew point49°
Tue, 2767° / 48°0
67 °
Alton, Tuesday, 27 October
Overcast. High 67°, low 48°.
Pressure30.36 inHg
Wind4.7 mph E
Humidity71%
Visibility6.2 mi
Dew point52°
Wed, 2869° / 50°0
69 °
Alton, Wednesday, 28 October
Overcast. High 69°, low 50°.
Pressure30.33 inHg
Wind3.2 mph SE
Humidity70%
Visibility6.2 mi
Dew point54°
Thu, 2971° / 51°0
71 °
Alton, Thursday, 29 October
Clear. High 71°, low 51°.
Pressure30.21 inHg
Wind11 mph SW
Humidity39%
Visibility—
Dew point42°
Fri, 3071° / 57°0
71 °
Alton, Friday, 30 October
Overcast. High 71°, low 57°.
Pressure30.21 inHg
Wind7.6 mph SW
Humidity56%
Visibility—
Dew point52°
Sat, 3170° / 57°0
70 °
Alton, Saturday, 31 October
Overcast. High 70°, low 57°.
Pressure30.21 inHg
Wind5.5 mph SE
Humidity41%
Visibility—
Dew point42°
Sun, 0173° / 58°0
73 °
Alton, Sunday, 1 November
Overcast. High 73°, low 58°.
Pressure30.18 inHg
Wind7.7 mph S
Humidity40%
Visibility—
Dew point45°
Mon, 0270° / 61°0.04
70 °
Alton, Monday, 2 November
Light rain. High 70°, low 61°.
Pressure30.06 inHg
Wind11.6 mph S
Humidity66%
Visibility—
Dew point53°
Tue, 0366° / 62°0.11
66 °
Alton, Tuesday, 3 November
Light rain. High 66°, low 62°.
Pressure29.80 inHg
Wind17.4 mph S
Humidity82%
Visibility—
Dew point60°
Wed, 0463° / 51°0.04
63 °
Alton, Wednesday, 4 November
Light rain. High 63°, low 51°.
Pressure29.77 inHg
Wind11.6 mph W
Humidity35%
Visibility—
Dew point33°
Thu, 0558° / 48°0
58 °
Alton, Thursday, 5 November
Overcast. High 58°, low 48°.
Pressure29.88 inHg
Wind11.3 mph NW
Humidity46%
Visibility—
Dew point36°
Fri, 0659° / 43°0
59 °
Alton, Friday, 6 November
Partly cloudy. High 59°, low 43°.
Pressure29.88 inHg
Wind10.2 mph SW
Humidity42%
Visibility—
Dew point32°
Sat, 0764° / 46°0
64 °
Alton, Saturday, 7 November
Overcast. High 64°, low 46°.
Pressure29.53 inHg
Wind20.2 mph SW
Humidity45%
Visibility—
Dew point41°
Sun, 0856° / 40°0
56 °
Alton, Sunday, 8 November
Clear. High 56°, low 40°.
Pressure29.97 inHg
Wind10.1 mph NW
Humidity49%
Visibility—
Dew point34°
Mon, 0962° / 43°0
62 °
Alton, Monday, 9 November
Overcast. High 62°, low 43°.
Pressure29.94 inHg
Wind10.8 mph SE
Humidity44%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1053° / 38°0.16
53 °
Alton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.16 in
Chance of precipitation33%
Record high73° (2020)
Record low21° (2018)
Wed, 1151° / 36°0.16
51 °
Alton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.16 in
Chance of precipitation42%
Record high69° (1964)
Record low22° (2017)
Thu, 1249° / 34°0.11
49 °
Alton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.11 in
Chance of precipitation30%
Record high70° (1964)
Record low13° (2019)
Fri, 1349° / 34°0.07
49 °
Alton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (2010)
Record low4° (2019)
Sat, 1450° / 34°0.08
50 °
Alton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.08 in
Chance of precipitation25%
Record high69° (2011)
Record low16° (1986)
Sun, 1550° / 36°0.13
50 °
Alton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.13 in
Chance of precipitation40%
Record high72° (1964)
Record low19° (1969)
Mon, 1650° / 35°0.09
50 °
Alton, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high67° (2005)
Record low19° (1969)
Tue, 1749° / 35°0.13
49 °
Alton, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation28%
Record high66° (2021)
Record low16° (2014)
Wed, 1850° / 35°0.09
50 °
Alton, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation23%
Record high72° (2016)
Record low9° (2014)
Thu, 1950° / 35°0.1
50 °
Alton, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.1 in
Chance of precipitation38%
Record high70° (1985)
Record low3° (2014)
Fri, 2049° / 35°0.11
49 °
Alton, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation30%
Record high66° (1985)
Record low17° (2014)
Sat, 2147° / 34°0.09
47 °
Alton, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation37%
Record high66° (1979)
Record low13° (2014)
Sun, 2247° / 33°0.09
47 °
Alton, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2010)
Record low13° (2014)
Mon, 2348° / 32°0.07
48 °
Alton, Monday, 23 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (1999)
Record low15° (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 Alton, OH 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 Alton, OH 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.