Monthly outlook for St. Peters, MO: average high 59.9°, average low 42.2°. That is 2.7° above the climate normal for November. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 9 November (68.1°), the coolest 14 November (30.6°).
59.9°/42.2°
Average high / low
+2.7°
Above normal
1 / 4
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
58.2°
55.9°
+1.3°
15 November – 24 November
62.7°
52.6°
+5.6°
25 November – 4 December
at normal
47.5°
—
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).
Fri, 0655° / 38°0
55 °
St. Peters, Friday, 6 November
Overcast. High 55°, low 38°.
Pressure30.21 inHg
Wind7.6 mph N
Humidity59%
Visibility6.2 mi
Dew point38°
Sat, 0753° / 36°0
53 °
St. Peters, Saturday, 7 November
Overcast. High 53°, low 36°.
Pressure30.27 inHg
Wind3.4 mph NW
Humidity52%
Visibility6.2 mi
Dew point35°
Sun, 0864° / 40°0
64 °
St. Peters, Sunday, 8 November
Clear. High 64°, low 40°.
Pressure30.18 inHg
Wind5.8 mph W
Humidity59%
Visibility6.2 mi
Dew point46°
Mon, 0968° / 44°0
68 °
St. Peters, Monday, 9 November
Clear. High 68°, low 44°.
Pressure30.18 inHg
Wind4.9 mph SW
Humidity65%
Visibility6.2 mi
Dew point53°
Tue, 1066° / 47°0
66 °
St. Peters, Tuesday, 10 November
Clear. High 66°, low 47°.
Pressure30.09 inHg
Wind5.5 mph SW
Humidity58%
Visibility—
Dew point47°
Wed, 1163° / 45°0
63 °
St. Peters, Wednesday, 11 November
Overcast. High 63°, low 45°.
Pressure30.03 inHg
Wind6.9 mph N
Humidity58%
Visibility—
Dew point46°
Thu, 1252° / 37°0
52 °
St. Peters, Thursday, 12 November
Partly cloudy. High 52°, low 37°.
Pressure30.09 inHg
Wind7.2 mph N
Humidity43%
Visibility—
Dew point27°
Fri, 1351° / 35°0
51 °
St. Peters, Friday, 13 November
Mostly clear. High 51°, low 35°.
Pressure30.03 inHg
Wind9.3 mph NW
Humidity44%
Visibility—
Dew point26°
Sat, 1448° / 31°0
48 °
St. Peters, Saturday, 14 November
Clear. High 48°, low 31°.
Pressure30.30 inHg
Wind6 mph NE
Humidity32%
Visibility—
Dew point16°
Sun, 1556° / 35°0
56 °
St. Peters, Sunday, 15 November
Clear. High 56°, low 35°.
Pressure30.36 inHg
Wind7.3 mph S
Humidity28%
Visibility—
Dew point19°
Mon, 1668° / 42°0
68 °
St. Peters, Monday, 16 November
Clear. High 68°, low 42°.
Pressure30.39 inHg
Wind8.7 mph SW
Humidity40%
Visibility—
Dew point36°
Tue, 1766° / 45°0
66 °
St. Peters, Tuesday, 17 November
Overcast. High 66°, low 45°.
Pressure30.33 inHg
Wind11.9 mph S
Humidity22%
Visibility—
Dew point21°
Wed, 1864° / 52°0.01
64 °
St. Peters, Wednesday, 18 November
Light rain. High 64°, low 52°.
Pressure30.09 inHg
Wind15.1 mph SW
Humidity51%
Visibility—
Dew point42°
Thu, 1960° / 47°0.01
60 °
St. Peters, Thursday, 19 November
Light rain. High 60°, low 47°.
Pressure30.24 inHg
Wind8.1 mph SW
Humidity40%
Visibility—
Dew point33°
Fri, 2062° / 54°0.56
62 °
St. Peters, Friday, 20 November
Rain. High 62°, low 54°.
Pressure29.94 inHg
Wind9.9 mph SW
Humidity94%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2151° / 37°0.09
51 °
St. Peters, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation25%
Record high69° (1990)
Record low16° (1964)
Sun, 2251° / 36°0.09
51 °
St. Peters, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation25%
Record high72° (2010)
Record low17° (1964)
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)
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.