As of 06:54 CST

Weather in St. Peters, MO

43°Current weather

St. Peters, Monday, 9 November, 06:54

Partly cloudy. Feels like 36°. High 72°, low 41°.

Pressure30.18 inHg
Wind14 mph S
Humidity95%
Visibility6.2 mi
Dew point41°

Monthly outlook for St. Peters, MO: average high 60°, average low 45.2°. That is 3.7° above the climate normal for November. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 17 November (72.3°), the coolest 14 November (35.6°).

60°/45.2°
Average high / low
+3.7°
Above normal
3 / 4
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 November – 18 November62.4°54.5°+4.4°
19 November – 28 November56°50.4°+3.1°
29 November – 8 Decemberat normal45.7°—

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).

Tue, 1070° / 43°0Clear
70 °Clear

St. Peters, Tuesday, 10 November

Clear. High 70°, low 43°.

Pressure30.09 inHg
Wind3 mph W
Humidity63%
Visibility6.2 mi
Dew point51°
Wed, 1165° / 49°0Overcast
65 °Overcast

St. Peters, Wednesday, 11 November

Overcast. High 65°, low 49°.

Pressure29.80 inHg
Wind12.3 mph W
Humidity68%
Visibility6.2 mi
Dew point54°
Thu, 1251° / 45°0.01Light rain
51 °Light rain

St. Peters, Thursday, 12 November

Light rain. High 51°, low 45°.

Pressure29.97 inHg
Wind12.1 mph NW
Humidity49%
Visibility6.2 mi
Dew point32°
Fri, 1343° / 37°0Overcast
43 °Overcast

St. Peters, Friday, 13 November

Overcast. High 43°, low 37°.

Pressure30.12 inHg
Wind12.5 mph N
Humidity60%
Visibility—
Dew point29°
Sat, 1447° / 36°0Overcast
47 °Overcast

St. Peters, Saturday, 14 November

Overcast. High 47°, low 36°.

Pressure30.30 inHg
Wind5.3 mph NW
Humidity55%
Visibility—
Dew point29°
Sun, 1563° / 39°0Partly cloudy
63 °Partly cloudy

St. Peters, Sunday, 15 November

Partly cloudy. High 63°, low 39°.

Pressure30.03 inHg
Wind10.2 mph S
Humidity34%
Visibility—
Dew point27°
Mon, 1668° / 54°0Overcast
68 °Overcast

St. Peters, Monday, 16 November

Overcast. High 68°, low 54°.

Pressure30.00 inHg
Wind9.4 mph S
Humidity57%
Visibility—
Dew point46°
Tue, 1772° / 55°0Clear
72 °Clear

St. Peters, Tuesday, 17 November

Clear. High 72°, low 55°.

Pressure30.18 inHg
Wind7.4 mph SW
Humidity47%
Visibility—
Dew point47°
Wed, 1872° / 54°0Clear
72 °Clear

St. Peters, Wednesday, 18 November

Clear. High 72°, low 54°.

Pressure30.24 inHg
Wind9.3 mph S
Humidity33%
Visibility—
Dew point37°
Thu, 1972° / 54°0Overcast
72 °Overcast

St. Peters, Thursday, 19 November

Overcast. High 72°, low 54°.

Pressure30.06 inHg
Wind18.4 mph S
Humidity32%
Visibility—
Dew point37°
Fri, 2066° / 52°0.29Rain
66 °Rain

St. Peters, Friday, 20 November

Rain. High 66°, low 52°.

Pressure30.03 inHg
Wind20.1 mph S
Humidity61%
Visibility—
Dew point45°
Sat, 2150° / 45°0.19Light rain
50 °Light rain

St. Peters, Saturday, 21 November

Light rain. High 50°, low 45°.

Pressure30.18 inHg
Wind11 mph NE
Humidity81%
Visibility—
Dew point40°
Sun, 2252° / 44°0.83Heavy rain
52 °Heavy rain

St. Peters, Sunday, 22 November

Heavy rain. High 52°, low 44°.

Pressure29.68 inHg
Wind17.2 mph SW
Humidity95%
Visibility—
Dew point49°
Mon, 2347° / 37°0.02Light rain
47 °Light rain

St. Peters, Monday, 23 November

Light rain. High 47°, low 37°.

Pressure29.94 inHg
Wind15.6 mph W
Humidity72%
Visibility—
Dew point35°
Tue, 2449° / 37°0Partly cloudy
49 °Partly cloudy

St. Peters, Tuesday, 24 November

Partly cloudy. High 49°, low 37°.

Pressure30.03 inHg
Wind10.4 mph NW
Humidity45%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2550° / 36°0.13Climate normal
50 °Climate normal

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°0.15Climate normal
50 °Climate normal

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°0.2Climate normal
48 °Climate normal

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°0.08Climate normal
46 °Climate normal

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°0.07Climate normal
47 °Climate normal

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°0.17Climate normal
47 °Climate normal

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°0.11Climate normal
46 °Climate normal

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°0.08Climate normal
48 °Climate normal

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°0.1Climate normal
47 °Climate normal

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°0.09Climate normal
45 °Climate normal

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°0.08Climate normal
46 °Climate normal

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°0.06Climate normal
44 °Climate normal

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)
Mon, 0743° / 30°0.09Climate normal
43 °Climate normal

St. Peters, Monday, 7 December

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.09 in
Chance of precipitation25%
Record high69° (1980)
Record low-3° (1977)
Tue, 0843° / 30°0.07Climate normal
43 °Climate normal

St. Peters, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (1991)
Record low4° (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.