Monthly outlook for Saint Peter, OH: average high 63°, average low 45.6°. That is 2.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 19 October (66.8°), the coolest 18 October (34.5°).
63°/45.6°
Average high / low
+2.4°
Above normal
4 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
64.2°
59.4°
+2.7°
28 October – 6 November
60.9°
56.2°
+2.6°
7 November – 16 November
at normal
50.6°
—
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).
Mon, 1967° / 39°0
67 °
Saint Peter, Monday, 19 October
Clear. High 67°, low 39°.
Pressure30.45 inHg
Wind1.3 mph S
Humidity46%
Visibility6.2 mi
Dew point40°
Tue, 2066° / 40°0
66 °
Saint Peter, Tuesday, 20 October
Clear. High 66°, low 40°.
Pressure30.39 inHg
Wind4.9 mph E
Humidity50%
Visibility6.2 mi
Dew point43°
Wed, 2164° / 43°0
64 °
Saint Peter, Wednesday, 21 October
Clear. High 64°, low 43°.
Pressure30.33 inHg
Wind2.6 mph NE
Humidity73%
Visibility6.2 mi
Dew point50°
Thu, 2265° / 43°0
65 °
Saint Peter, Thursday, 22 October
Partly cloudy. High 65°, low 43°.
Pressure30.30 inHg
Wind3.9 mph N
Humidity70%
Visibility6.2 mi
Dew point49°
Fri, 2362° / 45°0
62 °
Saint Peter, Friday, 23 October
Partly cloudy. High 62°, low 45°.
Pressure30.39 inHg
Wind5.9 mph E
Humidity58%
Visibility—
Dew point44°
Sat, 2465° / 40°0
65 °
Saint Peter, Saturday, 24 October
Clear. High 65°, low 40°.
Pressure30.45 inHg
Wind8.3 mph S
Humidity41%
Visibility—
Dew point37°
Sun, 2563° / 49°0
63 °
Saint Peter, Sunday, 25 October
Overcast. High 63°, low 49°.
Pressure30.27 inHg
Wind14.1 mph SW
Humidity53%
Visibility—
Dew point43°
Mon, 2661° / 43°0
61 °
Saint Peter, Monday, 26 October
Overcast. High 61°, low 43°.
Pressure30.30 inHg
Wind8.8 mph SE
Humidity35%
Visibility—
Dew point30°
Tue, 2765° / 54°0
65 °
Saint Peter, Tuesday, 27 October
Overcast. High 65°, low 54°.
Pressure30.12 inHg
Wind11.6 mph SW
Humidity47%
Visibility—
Dew point43°
Wed, 2856° / 52°0.09
56 °
Saint Peter, Wednesday, 28 October
Light rain. High 56°, low 52°.
Pressure30.18 inHg
Wind5.9 mph W
Humidity81%
Visibility—
Dew point49°
Thu, 2962° / 53°0.02
62 °
Saint Peter, Thursday, 29 October
Light rain. High 62°, low 53°.
Pressure30.12 inHg
Wind10.6 mph SE
Humidity67%
Visibility—
Dew point50°
Fri, 3064° / 59°0.26
64 °
Saint Peter, Friday, 30 October
Rain. High 64°, low 59°.
Pressure29.97 inHg
Wind18.4 mph S
Humidity90%
Visibility—
Dew point60°
Sat, 3164° / 53°0.65
64 °
Saint Peter, Saturday, 31 October
Rain. High 64°, low 53°.
Pressure30.06 inHg
Wind13.1 mph SW
Humidity80%
Visibility—
Dew point50°
Sun, 0164° / 41°0.47
64 °
Saint Peter, Sunday, 1 November
Rain. High 64°, low 41°.
Pressure29.71 inHg
Wind29.5 mph W
Humidity79%
Visibility—
Dew point41°
Mon, 0254° / 42°0
54 °
Saint Peter, Monday, 2 November
Mostly clear. High 54°, low 42°.
Pressure30.00 inHg
Wind14.4 mph W
Humidity48%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1249° / 33°0.09
49 °
Saint Peter, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.09 in
Chance of precipitation25%
Record high69° (1964)
Record low10° (2019)
Fri, 1348° / 34°0.07
48 °
Saint Peter, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2010)
Record low3° (2019)
Sat, 1449° / 34°0.13
49 °
Saint Peter, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.13 in
Chance of precipitation35%
Record high68° (1971)
Record low12° (1986)
Sun, 1549° / 35°0.13
49 °
Saint Peter, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation40%
Record high70° (1964)
Record low19° (2014)
Mon, 1649° / 34°0.09
49 °
Saint Peter, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.09 in
Chance of precipitation27%
Record high67° (2001)
Record low19° (1997)
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.