Monthly outlook for St. Peter, MN: average high 62.4°, average low 48.1°. That is 3° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 11 October (90.2°), the coolest 26 October (32.8°).
62.4°/48.1°
Average high / low
+3°
Above normal
2 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
65.7°
58°
+4.2°
21 October – 30 October
56.8°
54.1°
+1.5°
31 October – 9 November
at normal
48.4°
—
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).
Mon, 1285° / 61°0
85 °
St. Peter, Monday, 12 October
Light rain. High 85°, low 61°.
Pressure29.68 inHg
Wind4.1 mph S
Humidity62%
Visibility6.2 mi
Dew point62°
Tue, 1363° / 56°0
63 °
St. Peter, Tuesday, 13 October
Overcast. High 63°, low 56°.
Pressure29.94 inHg
Wind8.7 mph NW
Humidity65%
Visibility6.2 mi
Dew point48°
Wed, 1458° / 51°0
58 °
St. Peter, Wednesday, 14 October
Overcast. High 58°, low 51°.
Pressure30.21 inHg
Wind5.7 mph NE
Humidity61%
Visibility6.2 mi
Dew point43°
Thu, 1557° / 49°0
57 °
St. Peter, Thursday, 15 October
Overcast. High 57°, low 49°.
Pressure30.15 inHg
Wind6.7 mph N
Humidity69%
Visibility6.2 mi
Dew point46°
Fri, 1657° / 44°0
57 °
St. Peter, Friday, 16 October
Clear. High 57°, low 44°.
Pressure30.65 inHg
Wind16.8 mph NW
Humidity43%
Visibility—
Dew point31°
Sat, 1753° / 39°0
53 °
St. Peter, Saturday, 17 October
Overcast. High 53°, low 39°.
Pressure30.47 inHg
Wind18.4 mph S
Humidity33%
Visibility—
Dew point22°
Sun, 1862° / 43°0
62 °
St. Peter, Sunday, 18 October
Clear. High 62°, low 43°.
Pressure30.03 inHg
Wind22.6 mph SW
Humidity33%
Visibility—
Dew point27°
Mon, 1966° / 45°0
66 °
St. Peter, Monday, 19 October
Clear. High 66°, low 45°.
Pressure30.21 inHg
Wind11.3 mph S
Humidity40%
Visibility—
Dew point36°
Tue, 2066° / 49°0
66 °
St. Peter, Tuesday, 20 October
Overcast. High 66°, low 49°.
Pressure30.12 inHg
Wind18.7 mph S
Humidity64%
Visibility—
Dew point44°
Wed, 2166° / 57°0.52
66 °
St. Peter, Wednesday, 21 October
Rain. High 66°, low 57°.
Pressure29.88 inHg
Wind18 mph S
Humidity92%
Visibility—
Dew point57°
Thu, 2267° / 54°0.01
67 °
St. Peter, Thursday, 22 October
Light rain. High 67°, low 54°.
Pressure30.00 inHg
Wind14.5 mph S
Humidity80%
Visibility—
Dew point59°
Fri, 2364° / 48°0.56
64 °
St. Peter, Friday, 23 October
Rain. High 64°, low 48°.
Pressure30.00 inHg
Wind17.4 mph N
Humidity88%
Visibility—
Dew point51°
Sat, 2447° / 40°0
47 °
St. Peter, Saturday, 24 October
Overcast. High 47°, low 40°.
Pressure30.24 inHg
Wind15.5 mph NW
Humidity56%
Visibility—
Dew point31°
Sun, 2552° / 36°0
52 °
St. Peter, Sunday, 25 October
Clear. High 52°, low 36°.
Pressure30.15 inHg
Wind15.7 mph SW
Humidity49%
Visibility—
Dew point28°
Mon, 2644° / 33°0
44 °
St. Peter, Monday, 26 October
Overcast. High 44°, low 33°.
Pressure30.15 inHg
Wind19.8 mph NW
Humidity49%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2754° / 39°0.08
54 °
St. Peter, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation25%
Record high70° (1983)
Record low16° (2020)
Wed, 2852° / 38°0.06
52 °
St. Peter, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation18%
Record high74° (2024)
Record low22° (1967)
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)
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.