As of 08:03 CDT

Weather in St. Mary, MO

44°

St. Mary, Tuesday, 27 October, 08:03

Clear. Feels like 44°. High 74°, low 44°.

Pressure30.27 inHg

Wind0 mph N

Humidity93%

Visibility6.2 mi

Dew point44°

See detailed hourly forecast

Monthly outlook for St. Mary, MO: average high 66.5°, average low 51.8°. That is 3.3° above the climate normal for October. Precipitation is expected on 4 days (about 4.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 29 October (81.4°), the coolest 7 November (39°).

66.5°/51.8°

Average high / low

+3.3°

Above normal

4 / 5

Wet days / normal

4.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
27 October – 5 November	69.8°	61.8°	+4.4°
6 November – 15 November	61°	56.9°	+2.3°
16 November – 25 November	at normal	53.7°	—

October records over 66 years

93.6°1 October 2019All-time high

26.8°24 October 1981All-time low

Wed, 2878° / 49°

78 °

St. Mary, Wednesday, 28 October

Clear. High 78°, low 49°.

Pressure30.21 inHg

Wind6.5 mph S

Humidity47%

Visibility6.2 mi

Dew point52°

Thu, 2981° / 53°

81 °

St. Mary, Thursday, 29 October

Clear. High 81°, low 53°.

Pressure30.15 inHg

Wind5.7 mph SW

Humidity47%

Visibility6.2 mi

Dew point55°

Fri, 3075° / 58°

75 °

St. Mary, Friday, 30 October

Overcast. High 75°, low 58°.

Pressure30.21 inHg

Wind5 mph SE

Humidity59%

Visibility6.2 mi

Dew point57°

Sat, 3176° / 60°

0.11

76 °

St. Mary, Saturday, 31 October

Light rain. High 76°, low 60°.

Pressure30.15 inHg

Wind7.6 mph SE

Humidity52%

Visibility—

Dew point54°

Sun, 0167° / 61°

1.03

67 °

St. Mary, Sunday, 1 November

Rain. High 67°, low 61°.

Pressure30.06 inHg

Wind7.9 mph SE

Humidity89%

Visibility—

Dew point61°

Mon, 0265° / 55°

65 °

St. Mary, Monday, 2 November

Overcast. High 65°, low 55°.

Pressure29.88 inHg

Wind8.3 mph N

Humidity56%

Visibility—

Dew point47°

Tue, 0365° / 55°

65 °

St. Mary, Tuesday, 3 November

Overcast. High 65°, low 55°.

Pressure30.00 inHg

Wind12.6 mph NE

Humidity66%

Visibility—

Dew point52°

Wed, 0459° / 56°

2.31

59 °

St. Mary, Wednesday, 4 November

Heavy rain. High 59°, low 56°.

Pressure29.74 inHg

Wind17 mph NE

Humidity96%

Visibility—

Dew point57°

Thu, 0557° / 53°

0.02

57 °

St. Mary, Thursday, 5 November

Light rain. High 57°, low 53°.

Pressure29.83 inHg

Wind13.1 mph N

Humidity89%

Visibility—

Dew point51°

Fri, 0659° / 44°

59 °

St. Mary, Friday, 6 November

Clear. High 59°, low 44°.

Pressure30.09 inHg

Wind14.1 mph N

Humidity62%

Visibility—

Dew point44°

Sat, 0754° / 39°

54 °

St. Mary, Saturday, 7 November

Overcast. High 54°, low 39°.

Pressure30.21 inHg

Wind6.4 mph SE

Humidity49%

Visibility—

Dew point32°

Sun, 0862° / 43°

62 °

St. Mary, Sunday, 8 November

Overcast. High 62°, low 43°.

Pressure30.12 inHg

Wind9.9 mph S

Humidity46%

Visibility—

Dew point37°

Mon, 0969° / 49°

69 °

St. Mary, Monday, 9 November

Overcast. High 69°, low 49°.

Pressure30.12 inHg

Wind14.2 mph S

Humidity61%

Visibility—

Dew point51°

Tue, 1059° / 56°

0.68

59 °

St. Mary, Tuesday, 10 November

Rain. High 59°, low 56°.

Pressure29.91 inHg

Wind7.8 mph S

Humidity98%

Visibility—

Dew point57°

Wed, 1164° / 54°

64 °

St. Mary, Wednesday, 11 November

Partly cloudy. High 64°, low 54°.

Pressure29.91 inHg

Wind10.3 mph W

Humidity54%

Visibility—

Dew point46°

From day 17 onward the outlook is built from 60-year climate statistics

Thu, 1254° / 38°

0.08

54 °

St. Mary, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.08 in

Chance of precipitation23%

Record high74° (2010)

Record low14° (2019)

Fri, 1355° / 38°

0.06

55 °

St. Mary, Friday, 13 November

Climate normal for this date — 60-year average.

Average high55°

Average low38°

Average precipitation0.06 in

Chance of precipitation25%

Record high80° (1999)

Record low14° (1986)

Sat, 1455° / 39°

0.09

55 °

St. Mary, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.09 in

Chance of precipitation25%

Record high78° (1971)

Record low17° (1986)

Sun, 1555° / 40°

0.18

55 °

St. Mary, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.18 in

Chance of precipitation37%

Record high79° (2025)

Record low24° (2014)

Mon, 1655° / 39°

0.13

55 °

St. Mary, Monday, 16 November

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.13 in

Chance of precipitation27%

Record high73° (2001)

Record low24° (1970)

Tue, 1756° / 39°

0.13

56 °

St. Mary, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high56°

Average low39°

Average precipitation0.13 in

Chance of precipitation27%

Record high76° (2016)

Record low11° (1997)

Wed, 1855° / 40°

0.15

55 °

St. Mary, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.15 in

Chance of precipitation32%

Record high78° (2025)

Record low16° (2014)

Thu, 1955° / 40°

0.09

55 °

St. Mary, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.09 in

Chance of precipitation38%

Record high73° (1985)

Record low20° (2022)

Fri, 2054° / 39°

0.13

54 °

St. Mary, Friday, 20 November

Climate normal for this date — 60-year average.

Average high54°

Average low39°

Average precipitation0.13 in

Chance of precipitation30%

Record high71° (1979)

Record low21° (2022)

Sat, 2153° / 39°

0.11

53 °

St. Mary, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.11 in

Chance of precipitation27%

Record high70° (1990)

Record low21° (1964)

Sun, 2252° / 38°

0.11

52 °

St. Mary, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.11 in

Chance of precipitation28%

Record high69° (2010)

Record low18° (1964)

Mon, 2353° / 38°

0.11

53 °

St. Mary, Monday, 23 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.11 in

Chance of precipitation33%

Record high67° (1968)

Record low20° (1970)

Tue, 2452° / 37°

0.15

52 °

St. Mary, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.15 in

Chance of precipitation30%

Record high70° (1966)

Record low16° (1970)

Wed, 2552° / 37°

0.19

52 °

St. Mary, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.19 in

Chance of precipitation35%

Record high68° (1990)

Record low22° (2005)

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. Mary, 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. Mary, 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.