As of 00:22 CDT

Weather in St. Mary, MO

50°

St. Mary, Friday, 23 October, 00:22

Clear. Feels like 50°. High 76°, low 49°.

Pressure30.24 inHg

Wind0 mph N

Humidity87%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for St. Mary, MO: average high 70.5°, average low 52.6°. That is 4.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (78.3°), the coolest 5 November (39.9°).

70.5°/52.6°

Average high / low

+4.7°

Above normal

3 / 5

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
23 October – 1 November	73.6°	63.5°	+5.6°
2 November – 11 November	65.4°	58.9°	+3.6°
12 November – 21 November	at normal	54.8°	—

October records over 66 years

93.6°1 October 2019All-time high

26.8°24 October 1981All-time low

Sat, 2474° / 48°

74 °

St. Mary, Saturday, 24 October

Overcast. High 74°, low 48°.

Pressure30.33 inHg

Wind3.8 mph SE

Humidity51%

Visibility6.2 mi

Dew point50°

Sun, 2576° / 52°

76 °

St. Mary, Sunday, 25 October

Overcast. High 76°, low 52°.

Pressure30.39 inHg

Wind2.1 mph E

Humidity51%

Visibility6.2 mi

Dew point53°

Mon, 2675° / 54°

75 °

St. Mary, Monday, 26 October

Overcast. High 75°, low 54°.

Pressure30.33 inHg

Wind1.4 mph SE

Humidity46%

Visibility6.2 mi

Dew point49°

Tue, 2772° / 52°

72 °

St. Mary, Tuesday, 27 October

Overcast. High 72°, low 52°.

Pressure30.27 inHg

Wind4.6 mph SE

Humidity45%

Visibility—

Dew point47°

Wed, 2877° / 53°

77 °

St. Mary, Wednesday, 28 October

Clear. High 77°, low 53°.

Pressure30.12 inHg

Wind9.7 mph S

Humidity35%

Visibility—

Dew point43°

Thu, 2978° / 57°

78 °

St. Mary, Thursday, 29 October

Overcast. High 78°, low 57°.

Pressure30.18 inHg

Wind13.1 mph S

Humidity26%

Visibility—

Dew point38°

Fri, 3074° / 59°

0.03

74 °

St. Mary, Friday, 30 October

Light rain. High 74°, low 59°.

Pressure30.09 inHg

Wind11.6 mph W

Humidity29%

Visibility—

Dew point39°

Sat, 3166° / 59°

0.22

66 °

St. Mary, Saturday, 31 October

Light rain. High 66°, low 59°.

Pressure29.94 inHg

Wind15 mph S

Humidity92%

Visibility—

Dew point60°

Sun, 0167° / 64°

0.62

67 °

St. Mary, Sunday, 1 November

Rain. High 67°, low 64°.

Pressure29.97 inHg

Wind11.1 mph SW

Humidity94%

Visibility—

Dew point64°

Mon, 0268° / 59°

0.06

68 °

St. Mary, Monday, 2 November

Light rain. High 68°, low 59°.

Pressure30.00 inHg

Wind8.9 mph NW

Humidity84%

Visibility—

Dew point62°

Tue, 0363° / 52°

63 °

St. Mary, Tuesday, 3 November

Overcast. High 63°, low 52°.

Pressure30.21 inHg

Wind13.9 mph N

Humidity45%

Visibility—

Dew point39°

Wed, 0458° / 46°

0.01

58 °

St. Mary, Wednesday, 4 November

Light rain. High 58°, low 46°.

Pressure30.15 inHg

Wind13.9 mph NW

Humidity49%

Visibility—

Dew point38°

Thu, 0562° / 40°

62 °

St. Mary, Thursday, 5 November

Clear. High 62°, low 40°.

Pressure30.21 inHg

Wind10.3 mph NW

Humidity31%

Visibility—

Dew point26°

Fri, 0673° / 48°

73 °

St. Mary, Friday, 6 November

Clear. High 73°, low 48°.

Pressure29.97 inHg

Wind11.5 mph W

Humidity31%

Visibility—

Dew point36°

Sat, 0769° / 50°

69 °

St. Mary, Saturday, 7 November

Mostly clear. High 69°, low 50°.

Pressure30.03 inHg

Wind8 mph S

Humidity43%

Visibility—

Dew point43°

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

Sun, 0859° / 43°

0.03

59 °

St. Mary, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high59°

Average low43°

Average precipitation0.03 in

Chance of precipitation15%

Record high79° (1999)

Record low16° (1991)

Mon, 0960° / 43°

0.07

60 °

St. Mary, Monday, 9 November

Climate normal for this date — 60-year average.

Average high60°

Average low43°

Average precipitation0.07 in

Chance of precipitation25%

Record high77° (2022)

Record low19° (1991)

Tue, 1058° / 42°

0.13

58 °

St. Mary, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.13 in

Chance of precipitation28%

Record high76° (1999)

Record low20° (2018)

Wed, 1156° / 40°

0.11

56 °

St. Mary, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.11 in

Chance of precipitation28%

Record high76° (2010)

Record low24° (1960)

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)

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.