As of 07:24 CDT

Weather in St. Peters, MO

59°Current weather

St. Peters, Saturday, 31 October, 07:24

Clear. Feels like 58°. High 71°, low 59°.

Pressure30.24 inHg
Wind1 mph NE
Humidity76%
Visibility6.2 mi
Dew point52°

Monthly outlook for St. Peters, MO: average high 68.1°, average low 55.4°. That is 6.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 1 November (71.8°), the coolest 11 November (45°).

68.1°/55.4°
Average high / low
+6.2°
Above normal
4 / 4
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
31 October – 9 November68.8°58.7°+5.6°
10 November – 19 November67°54°+7.2°
20 November – 29 Novemberat normal49.8°—

October records over 66 years

91.9°10 October 1963All-time high
28.8°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — O'Fallon (6 mi).

Sun, 0172° / 59°0.01Light rain
72 °Light rain

St. Peters, Sunday, 1 November

Light rain. High 72°, low 59°.

Pressure30.24 inHg
Wind11.1 mph SE
Humidity68%
Visibility6.2 mi
Dew point55°
Mon, 0269° / 58°0.01Light rain
69 °Light rain

St. Peters, Monday, 2 November

Light rain. High 69°, low 58°.

Pressure30.03 inHg
Wind11 mph SE
Humidity84%
Visibility6.2 mi
Dew point60°
Tue, 0372° / 65°0.01Light rain
72 °Light rain

St. Peters, Tuesday, 3 November

Light rain. High 72°, low 65°.

Pressure29.88 inHg
Wind16 mph S
Humidity74%
Visibility6.2 mi
Dew point62°
Wed, 0470° / 63°0.49Rain
70 °Rain

St. Peters, Wednesday, 4 November

Rain. High 70°, low 63°.

Pressure29.74 inHg
Wind10.2 mph SE
Humidity80%
Visibility—
Dew point63°
Thu, 0568° / 57°0.24Rain
68 °Rain

St. Peters, Thursday, 5 November

Rain. High 68°, low 57°.

Pressure29.59 inHg
Wind9.1 mph NW
Humidity79%
Visibility—
Dew point61°
Fri, 0668° / 50°0Partly cloudy
68 °Partly cloudy

St. Peters, Friday, 6 November

Partly cloudy. High 68°, low 50°.

Pressure29.97 inHg
Wind5.5 mph NE
Humidity52%
Visibility—
Dew point46°
Sat, 0764° / 56°0.01Light rain
64 °Light rain

St. Peters, Saturday, 7 November

Light rain. High 64°, low 56°.

Pressure29.94 inHg
Wind5.6 mph SE
Humidity84%
Visibility—
Dew point58°
Sun, 0865° / 60°0.59Rain
65 °Rain

St. Peters, Sunday, 8 November

Rain. High 65°, low 60°.

Pressure29.91 inHg
Wind8 mph SE
Humidity87%
Visibility—
Dew point59°
Mon, 0969° / 59°0.19Rain
69 °Rain

St. Peters, Monday, 9 November

Rain. High 69°, low 59°.

Pressure29.85 inHg
Wind9.4 mph SE
Humidity54%
Visibility—
Dew point50°
Tue, 1066° / 55°0.02Light rain
66 °Light rain

St. Peters, Tuesday, 10 November

Light rain. High 66°, low 55°.

Pressure29.94 inHg
Wind12.1 mph NW
Humidity83%
Visibility—
Dew point55°
Wed, 1162° / 45°0Clear
62 °Clear

St. Peters, Wednesday, 11 November

Clear. High 62°, low 45°.

Pressure30.15 inHg
Wind8.1 mph NW
Humidity34%
Visibility—
Dew point29°
Thu, 1267° / 49°0Overcast
67 °Overcast

St. Peters, Thursday, 12 November

Overcast. High 67°, low 49°.

Pressure29.94 inHg
Wind6.8 mph SE
Humidity48%
Visibility—
Dew point42°
Fri, 1372° / 55°0Overcast
72 °Overcast

St. Peters, Friday, 13 November

Overcast. High 72°, low 55°.

Pressure29.91 inHg
Wind11.1 mph SW
Humidity47%
Visibility—
Dew point47°
Sat, 1465° / 47°0Mostly clear
65 °Mostly clear

St. Peters, Saturday, 14 November

Mostly clear. High 65°, low 47°.

Pressure30.12 inHg
Wind7.3 mph NW
Humidity47%
Visibility—
Dew point39°
Sun, 1570° / 50°0Overcast
70 °Overcast

St. Peters, Sunday, 15 November

Overcast. High 70°, low 50°.

Pressure30.09 inHg
Wind13.2 mph SW
Humidity36%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1654° / 38°0.11Climate normal
54 °Climate normal

St. Peters, Monday, 16 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.11 in
Chance of precipitation22%
Record high72° (2001)
Record low25° (1997)
Tue, 1755° / 39°0.13Climate normal
55 °Climate normal

St. Peters, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.13 in
Chance of precipitation28%
Record high76° (2016)
Record low19° (2014)
Wed, 1854° / 39°0.15Climate normal
54 °Climate normal

St. Peters, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation30%
Record high72° (2024)
Record low14° (2014)
Thu, 1954° / 39°0.1Climate normal
54 °Climate normal

St. Peters, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation27%
Record high72° (1979)
Record low22° (2022)
Fri, 2052° / 38°0.13Climate normal
52 °Climate normal

St. Peters, Friday, 20 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.13 in
Chance of precipitation30%
Record high73° (2007)
Record low19° (1984)
Sat, 2151° / 37°0.09Climate normal
51 °Climate normal

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°0.09Climate normal
51 °Climate normal

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°0.09Climate normal
51 °Climate normal

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°0.13Climate normal
50 °Climate normal

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°0.13Climate 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)

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.