Monthly outlook for St. Peters, MO: average high 61.3°, average low 44.9°. That is 3.9° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 20 November (69.5°), the coolest 14 November (30.2°).
61.3°/44.9°
Average high / low
+3.9°
Above normal
1 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 November – 16 November
59.2°
55.2°
+2.2°
17 November – 26 November
64.8°
51.9°
+7.2°
27 November – 6 December
at normal
46.5°
—
November records over 66 years
81.5°8 November 2023All-time high
-0°8 November 1991All-time low
Climate normals and records are computed from the nearest reference point — O'Fallon (6 mi).
Sun, 0865° / 39°0
65 °
St. Peters, Sunday, 8 November
Clear. High 65°, low 39°.
Pressure30.15 inHg
Wind6.3 mph W
Humidity61%
Visibility6.2 mi
Dew point46°
Mon, 0964° / 41°0
64 °
St. Peters, Monday, 9 November
Clear. High 64°, low 41°.
Pressure30.21 inHg
Wind4.6 mph SW
Humidity55%
Visibility6.2 mi
Dew point46°
Tue, 1067° / 47°0
67 °
St. Peters, Tuesday, 10 November
Clear. High 67°, low 47°.
Pressure30.12 inHg
Wind3.9 mph W
Humidity64%
Visibility6.2 mi
Dew point51°
Wed, 1166° / 49°0
66 °
St. Peters, Wednesday, 11 November
Overcast. High 66°, low 49°.
Pressure29.85 inHg
Wind15 mph NW
Humidity66%
Visibility—
Dew point52°
Thu, 1254° / 43°0
54 °
St. Peters, Thursday, 12 November
Partly cloudy. High 54°, low 43°.
Pressure29.97 inHg
Wind13.6 mph NW
Humidity50%
Visibility—
Dew point35°
Fri, 1345° / 33°0
45 °
St. Peters, Friday, 13 November
Overcast. High 45°, low 33°.
Pressure29.97 inHg
Wind18.8 mph N
Humidity48%
Visibility—
Dew point23°
Sat, 1451° / 30°0
51 °
St. Peters, Saturday, 14 November
Clear. High 51°, low 30°.
Pressure30.12 inHg
Wind9.6 mph NW
Humidity30%
Visibility—
Dew point15°
Sun, 1561° / 36°0
61 °
St. Peters, Sunday, 15 November
Clear. High 61°, low 36°.
Pressure30.18 inHg
Wind9.4 mph SW
Humidity25%
Visibility—
Dew point19°
Mon, 1665° / 44°0
65 °
St. Peters, Monday, 16 November
Partly cloudy. High 65°, low 44°.
Pressure30.21 inHg
Wind9.8 mph SW
Humidity27%
Visibility—
Dew point27°
Tue, 1754° / 51°0.17
54 °
St. Peters, Tuesday, 17 November
Light rain. High 54°, low 51°.
Pressure30.15 inHg
Wind10.5 mph S
Humidity84%
Visibility—
Dew point48°
Wed, 1864° / 51°0.01
64 °
St. Peters, Wednesday, 18 November
Light rain. High 64°, low 51°.
Pressure30.27 inHg
Wind6.3 mph S
Humidity67%
Visibility—
Dew point50°
Thu, 1969° / 50°0
69 °
St. Peters, Thursday, 19 November
Overcast. High 69°, low 50°.
Pressure30.18 inHg
Wind9.6 mph S
Humidity48%
Visibility—
Dew point44°
Fri, 2070° / 54°0
70 °
St. Peters, Friday, 20 November
Overcast. High 70°, low 54°.
Pressure30.06 inHg
Wind13.7 mph SW
Humidity51%
Visibility—
Dew point48°
Sat, 2168° / 59°0.01
68 °
St. Peters, Saturday, 21 November
Light rain. High 68°, low 59°.
Pressure30.09 inHg
Wind7.6 mph SW
Humidity62%
Visibility—
Dew point52°
Sun, 2265° / 57°0
65 °
St. Peters, Sunday, 22 November
Overcast. High 65°, low 57°.
Pressure30.03 inHg
Wind9.8 mph SE
Humidity52%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2351° / 36°0.09
51 °
St. Peters, Monday, 23 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation28%
Record high68° (1966)
Record low18° (1970)
Tue, 2450° / 35°0.13
50 °
St. Peters, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.13 in
Chance of precipitation28%
Record high70° (1966)
Record low16° (1970)
Wed, 2550° / 36°0.13
50 °
St. Peters, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.13 in
Chance of precipitation33%
Record high69° (1990)
Record low21° (1977)
Thu, 2650° / 36°0.15
50 °
St. Peters, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.15 in
Chance of precipitation42%
Record high76° (1965)
Record low14° (1977)
Fri, 2748° / 35°0.2
48 °
St. Peters, Friday, 27 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.2 in
Chance of precipitation42%
Record high70° (1989)
Record low14° (1993)
Sat, 2846° / 33°0.08
46 °
St. Peters, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation23%
Record high71° (1998)
Record low14° (1977)
Sun, 2947° / 34°0.07
47 °
St. Peters, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation27%
Record high71° (1998)
Record low15° (1976)
Mon, 3047° / 33°0.17
47 °
St. Peters, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.17 in
Chance of precipitation28%
Record high66° (1970)
Record low10° (1964)
Tue, 0146° / 33°0.11
46 °
St. Peters, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation25%
Record high68° (2012)
Record low12° (1985)
Wed, 0248° / 33°0.08
48 °
St. Peters, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.08 in
Chance of precipitation23%
Record high71° (2012)
Record low7° (2006)
Thu, 0347° / 33°0.1
47 °
St. Peters, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.1 in
Chance of precipitation30%
Record high72° (1998)
Record low12° (1985)
Fri, 0445° / 32°0.09
45 °
St. Peters, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.09 in
Chance of precipitation27%
Record high69° (1998)
Record low3° (2006)
Sat, 0546° / 31°0.08
46 °
St. Peters, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.08 in
Chance of precipitation32%
Record high71° (1998)
Record low11° (2025)
Sun, 0644° / 31°0.06
44 °
St. Peters, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation35%
Record high70° (1998)
Record low5° (1977)
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. Peters, MO 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. Peters, MO 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.