Monthly outlook for St. Peter, MN: average high 59.7°, average low 46.7°. That is 2.1° above the climate normal for October. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 21 October (70.3°), the coolest 17 October (36.8°).
59.7°/46.7°
Average high / low
+2.1°
Above normal
4 / 4
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
61.4°
57°
+2.4°
23 October – 1 November
56.8°
53°
+2.2°
2 November – 11 November
at normal
46.9°
—
October records over 66 years
89.8°3 October 2025All-time high
13.5°24 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Le Sueur (10 mi).
Wed, 1458° / 46°0
58 °
St. Peter, Wednesday, 14 October
Overcast. High 58°, low 46°.
Pressure30.24 inHg
Wind5.4 mph NE
Humidity60%
Visibility6.2 mi
Dew point42°
Thu, 1555° / 46°0.31
55 °
St. Peter, Thursday, 15 October
Rain. High 55°, low 46°.
Pressure30.15 inHg
Wind5.8 mph N
Humidity97%
Visibility1.5 mi
Dew point50°
Fri, 1653° / 41°0
53 °
St. Peter, Friday, 16 October
Clear. High 53°, low 41°.
Pressure30.53 inHg
Wind16.8 mph N
Humidity48%
Visibility6.2 mi
Dew point32°
Sat, 1761° / 37°0
61 °
St. Peter, Saturday, 17 October
Clear. High 61°, low 37°.
Pressure30.27 inHg
Wind16.6 mph S
Humidity39%
Visibility—
Dew point30°
Sun, 1859° / 47°0
59 °
St. Peter, Sunday, 18 October
Overcast. High 59°, low 47°.
Pressure29.97 inHg
Wind15 mph S
Humidity50%
Visibility—
Dew point39°
Mon, 1964° / 46°0
64 °
St. Peter, Monday, 19 October
Clear. High 64°, low 46°.
Pressure30.09 inHg
Wind9.8 mph S
Humidity59%
Visibility—
Dew point46°
Tue, 2068° / 53°0
68 °
St. Peter, Tuesday, 20 October
Overcast. High 68°, low 53°.
Pressure30.09 inHg
Wind15 mph S
Humidity58%
Visibility—
Dew point47°
Wed, 2170° / 62°0.39
70 °
St. Peter, Wednesday, 21 October
Rain. High 70°, low 62°.
Pressure29.97 inHg
Wind20.2 mph S
Humidity74%
Visibility—
Dew point60°
Thu, 2267° / 65°1.3
67 °
St. Peter, Thursday, 22 October
Heavy rain. High 67°, low 65°.
Pressure29.77 inHg
Wind14.2 mph S
Humidity97%
Visibility—
Dew point65°
Fri, 2363° / 47°0.48
63 °
St. Peter, Friday, 23 October
Rain. High 63°, low 47°.
Pressure29.83 inHg
Wind23.6 mph SW
Humidity63%
Visibility—
Dew point40°
Sat, 2449° / 40°0
49 °
St. Peter, Saturday, 24 October
Overcast. High 49°, low 40°.
Pressure30.30 inHg
Wind16.6 mph W
Humidity58%
Visibility—
Dew point31°
Sun, 2555° / 40°0
55 °
St. Peter, Sunday, 25 October
Clear. High 55°, low 40°.
Pressure30.18 inHg
Wind8.5 mph NW
Humidity53%
Visibility—
Dew point35°
Mon, 2656° / 40°0
56 °
St. Peter, Monday, 26 October
Clear. High 56°, low 40°.
Pressure30.36 inHg
Wind6.6 mph W
Humidity58%
Visibility—
Dew point37°
Tue, 2762° / 43°0
62 °
St. Peter, Tuesday, 27 October
Clear. High 62°, low 43°.
Pressure30.06 inHg
Wind17.4 mph SW
Humidity49%
Visibility—
Dew point38°
Wed, 2857° / 42°0
57 °
St. Peter, Wednesday, 28 October
Mostly clear. High 57°, low 42°.
Pressure30.06 inHg
Wind12.2 mph NW
Humidity49%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2953° / 38°0.08
53 °
St. Peter, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.08 in
Chance of precipitation30%
Record high80° (2024)
Record low22° (1988)
Fri, 3053° / 38°0.07
53 °
St. Peter, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation30%
Record high74° (2024)
Record low22° (2023)
Sat, 3151° / 37°0.11
51 °
St. Peter, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high71° (2000)
Record low20° (1996)
Sun, 0149° / 36°0.09
49 °
St. Peter, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation22%
Record high70° (1990)
Record low21° (1996)
Mon, 0249° / 36°0.06
49 °
St. Peter, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.06 in
Chance of precipitation15%
Record high74° (2022)
Record low13° (1991)
Tue, 0349° / 35°0.06
49 °
St. Peter, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high72° (2008)
Record low8° (1991)
Wed, 0448° / 34°0.04
48 °
St. Peter, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (2008)
Record low-5° (1991)
Thu, 0548° / 34°0.06
48 °
St. Peter, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation25%
Record high68° (1975)
Record low8° (1991)
Fri, 0648° / 34°0.05
48 °
St. Peter, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.05 in
Chance of precipitation15%
Record high71° (2020)
Record low1° (1991)
Sat, 0747° / 33°0.02
47 °
St. Peter, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (2001)
Record low-10° (1991)
Sun, 0847° / 33°0.04
47 °
St. Peter, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high74° (1999)
Record low-2° (1991)
Mon, 0946° / 32°0.13
46 °
St. Peter, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.13 in
Chance of precipitation33%
Record high72° (1999)
Record low13° (2003)
Tue, 1044° / 31°0.1
44 °
St. Peter, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.1 in
Chance of precipitation33%
Record high70° (2012)
Record low8° (2018)
Wed, 1142° / 29°0.06
42 °
St. Peter, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.06 in
Chance of precipitation18%
Record high62° (1964)
Record low7° (1986)
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 St. Peter, MN 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 St. Peter, MN 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.