Monthly outlook for Saint Peter, OH: average high 66.3°, average low 51.5°. That is 3.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 13 October (82.4°), the coolest 27 October (37.9°).
66.3°/51.5°
Average high / low
+3.3°
Above normal
4 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
70.1°
61.4°
+4.8°
23 October – 1 November
59.9°
58.3°
+0.9°
2 November – 11 November
at normal
53.6°
—
October records over 66 years
87.6°1 October 2019All-time high
21.9°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Salamonia (8 mi).
Wed, 1478° / 66°0
78 °
Saint Peter, Wednesday, 14 October
Light rain. High 78°, low 66°.
Pressure30.00 inHg
Wind6.4 mph NW
Humidity68%
Visibility6.2 mi
Dew point66°
Thu, 1572° / 59°0.5
72 °
Saint Peter, Thursday, 15 October
Heavy rain. High 72°, low 59°.
Pressure30.09 inHg
Wind8.8 mph E
Humidity72%
Visibility6.2 mi
Dew point54°
Fri, 1672° / 49°0.45
72 °
Saint Peter, Friday, 16 October
Heavy rain. High 72°, low 49°.
Pressure29.94 inHg
Wind20.2 mph NW
Humidity75%
Visibility5.4 mi
Dew point45°
Sat, 1754° / 39°0
54 °
Saint Peter, Saturday, 17 October
Clear. High 54°, low 39°.
Pressure30.50 inHg
Wind12 mph N
Humidity49%
Visibility—
Dew point32°
Sun, 1862° / 41°0
62 °
Saint Peter, Sunday, 18 October
Clear. High 62°, low 41°.
Pressure30.36 inHg
Wind10.1 mph SW
Humidity37%
Visibility—
Dew point32°
Mon, 1964° / 51°0
64 °
Saint Peter, Monday, 19 October
Overcast. High 64°, low 51°.
Pressure30.30 inHg
Wind9.8 mph S
Humidity50%
Visibility—
Dew point44°
Tue, 2069° / 57°0.06
69 °
Saint Peter, Tuesday, 20 October
Light rain. High 69°, low 57°.
Pressure30.30 inHg
Wind6.3 mph S
Humidity70%
Visibility—
Dew point54°
Wed, 2172° / 56°0
72 °
Saint Peter, Wednesday, 21 October
Partly cloudy. High 72°, low 56°.
Pressure30.30 inHg
Wind6.7 mph SE
Humidity57%
Visibility—
Dew point53°
Thu, 2275° / 56°0
75 °
Saint Peter, Thursday, 22 October
Clear. High 75°, low 56°.
Pressure30.18 inHg
Wind10.8 mph S
Humidity49%
Visibility—
Dew point52°
Fri, 2371° / 61°0
71 °
Saint Peter, Friday, 23 October
Overcast. High 71°, low 61°.
Pressure30.06 inHg
Wind18.9 mph S
Humidity57%
Visibility—
Dew point54°
Sat, 2461° / 52°0
61 °
Saint Peter, Saturday, 24 October
Overcast. High 61°, low 52°.
Pressure30.18 inHg
Wind14.1 mph W
Humidity47%
Visibility—
Dew point39°
Sun, 2557° / 46°0
57 °
Saint Peter, Sunday, 25 October
Overcast. High 57°, low 46°.
Pressure30.15 inHg
Wind7.1 mph NW
Humidity46%
Visibility—
Dew point35°
Mon, 2656° / 43°0.13
56 °
Saint Peter, Monday, 26 October
Rain. High 56°, low 43°.
Pressure30.24 inHg
Wind11 mph NW
Humidity49%
Visibility—
Dew point36°
Tue, 2755° / 38°0
55 °
Saint Peter, Tuesday, 27 October
Overcast. High 55°, low 38°.
Pressure30.24 inHg
Wind7.6 mph W
Humidity39%
Visibility—
Dew point28°
Wed, 2859° / 44°0
59 °
Saint Peter, Wednesday, 28 October
Mostly clear. High 59°, low 44°.
Pressure29.91 inHg
Wind19.5 mph W
Humidity51%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2957° / 41°0.08
57 °
Saint Peter, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.08 in
Chance of precipitation22%
Record high76° (2024)
Record low26° (1965)
Fri, 3058° / 42°0.09
58 °
Saint Peter, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation32%
Record high76° (2024)
Record low25° (1988)
Sat, 3159° / 44°0.1
59 °
Saint Peter, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.1 in
Chance of precipitation40%
Record high75° (1974)
Record low24° (1988)
Sun, 0158° / 44°0.16
58 °
Saint Peter, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.16 in
Chance of precipitation38%
Record high76° (2016)
Record low24° (2023)
Mon, 0257° / 41°0.11
57 °
Saint Peter, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.11 in
Chance of precipitation35%
Record high75° (1961)
Record low23° (2014)
Tue, 0355° / 40°0.06
55 °
Saint Peter, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation28%
Record high75° (1987)
Record low20° (1966)
Wed, 0454° / 41°0.06
54 °
Saint Peter, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.06 in
Chance of precipitation30%
Record high74° (2003)
Record low17° (1966)
Thu, 0555° / 40°0.09
55 °
Saint Peter, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation25%
Record high76° (2024)
Record low17° (1991)
Fri, 0653° / 38°0.08
53 °
Saint Peter, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.08 in
Chance of precipitation30%
Record high74° (1975)
Record low22° (1967)
Sat, 0753° / 38°0.12
53 °
Saint Peter, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.12 in
Chance of precipitation28%
Record high68° (2020)
Record low21° (1971)
Sun, 0853° / 38°0.04
53 °
Saint Peter, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.04 in
Chance of precipitation17%
Record high74° (2023)
Record low18° (1991)
Mon, 0954° / 38°0.1
54 °
Saint Peter, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.1 in
Chance of precipitation33%
Record high74° (2020)
Record low17° (1991)
Tue, 1053° / 38°0.12
53 °
Saint Peter, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.12 in
Chance of precipitation37%
Record high73° (2020)
Record low18° (2018)
Wed, 1150° / 35°0.1
50 °
Saint Peter, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.1 in
Chance of precipitation32%
Record high70° (1964)
Record low19° (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 Saint Peter, 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 Saint Peter, 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.