As of 00:56 CDT

Weather in Ballwin, MO

64°Current weather

Ballwin, Thursday, 8 October, 00:56

Clear. Feels like 64°. High 84°, low 53°.

Pressure30.00 inHg
Wind4.1 mph NE
Humidity76%
Visibility6.2 mi
Dew point57°

Monthly outlook for Ballwin, MO: average high 74.8°, average low 55.1°. That is 4.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 15 October (95.1°), the coolest 18 October (42.3°).

74.8°/55.1°
Average high / low
+4.2°
Above normal
3 / 4
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October81°68.6°+6.9°
18 October – 27 October64.6°64.1°+0.3°
28 October – 6 Novemberat normal60.1°—

October records over 66 years

91.9°1 October 2019All-time high
28°31 October 2023All-time low

Climate normals and records are computed from the nearest reference point — Winchester (1 mi).

Fri, 0986° / 55°0Clear
86 °Clear

Ballwin, Friday, 9 October

Clear. High 86°, low 55°.

Pressure30.12 inHg
Wind5.8 mph S
Humidity31%
Visibility6.2 mi
Dew point48°
Sat, 1084° / 61°0.06Light rain
84 °Light rain

Ballwin, Saturday, 10 October

Light rain. High 84°, low 61°.

Pressure30.09 inHg
Wind6.4 mph SE
Humidity37%
Visibility6.2 mi
Dew point54°
Sun, 1174° / 62°0Overcast
74 °Overcast

Ballwin, Sunday, 11 October

Overcast. High 74°, low 62°.

Pressure29.94 inHg
Wind5.2 mph N
Humidity65%
Visibility6.2 mi
Dew point57°
Mon, 1291° / 59°0Clear
91 °Clear

Ballwin, Monday, 12 October

Clear. High 91°, low 59°.

Pressure29.85 inHg
Wind11.3 mph SW
Humidity38%
Visibility—
Dew point55°
Tue, 1376° / 63°0Partly cloudy
76 °Partly cloudy

Ballwin, Tuesday, 13 October

Partly cloudy. High 76°, low 63°.

Pressure30.03 inHg
Wind11 mph N
Humidity45%
Visibility—
Dew point47°
Wed, 1477° / 57°0Overcast
77 °Overcast

Ballwin, Wednesday, 14 October

Overcast. High 77°, low 57°.

Pressure30.00 inHg
Wind11.4 mph S
Humidity46%
Visibility—
Dew point46°
Thu, 1595° / 70°0Clear
95 °Clear

Ballwin, Thursday, 15 October

Clear. High 95°, low 70°.

Pressure29.83 inHg
Wind14.7 mph SW
Humidity36%
Visibility—
Dew point60°
Fri, 1683° / 61°0.15Light rain
83 °Light rain

Ballwin, Friday, 16 October

Light rain. High 83°, low 61°.

Pressure29.94 inHg
Wind14.5 mph SW
Humidity57%
Visibility—
Dew point65°
Sat, 1760° / 48°0Overcast
60 °Overcast

Ballwin, Saturday, 17 October

Overcast. High 60°, low 48°.

Pressure30.24 inHg
Wind11 mph NW
Humidity38%
Visibility—
Dew point29°
Sun, 1862° / 42°0Clear
62 °Clear

Ballwin, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure30.33 inHg
Wind6.2 mph N
Humidity34%
Visibility—
Dew point29°
Mon, 1968° / 46°0Clear
68 °Clear

Ballwin, Monday, 19 October

Clear. High 68°, low 46°.

Pressure30.27 inHg
Wind5.3 mph S
Humidity28%
Visibility—
Dew point29°
Tue, 2074° / 50°0Partly cloudy
74 °Partly cloudy

Ballwin, Tuesday, 20 October

Partly cloudy. High 74°, low 50°.

Pressure30.15 inHg
Wind9.6 mph N
Humidity27%
Visibility—
Dew point33°
Wed, 2164° / 49°0Overcast
64 °Overcast

Ballwin, Wednesday, 21 October

Overcast. High 64°, low 49°.

Pressure30.18 inHg
Wind7.7 mph N
Humidity42%
Visibility—
Dew point37°
Thu, 2262° / 54°0Overcast
62 °Overcast

Ballwin, Thursday, 22 October

Overcast. High 62°, low 54°.

Pressure29.74 inHg
Wind8.6 mph S
Humidity51%
Visibility—
Dew point42°
Fri, 2357° / 52°0.31Rain
57 °Rain

Ballwin, Friday, 23 October

Rain. High 57°, low 52°.

Pressure29.77 inHg
Wind11.6 mph NW
Humidity84%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2463° / 49°0.11Climate normal
63 °Climate normal

Ballwin, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high63°
Average low49°
Average precipitation0.11 in
Chance of precipitation27%
Record high81° (2012)
Record low29° (1981)
Sun, 2563° / 48°0.13Climate normal
63 °Climate normal

Ballwin, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high63°
Average low48°
Average precipitation0.13 in
Chance of precipitation30%
Record high81° (1963)
Record low32° (2013)
Mon, 2662° / 47°0.15Climate normal
62 °Climate normal

Ballwin, Monday, 26 October

Climate normal for this date — 60-year average.

Average high62°
Average low47°
Average precipitation0.15 in
Chance of precipitation37%
Record high82° (1963)
Record low31° (1962)
Tue, 2762° / 47°0.1Climate normal
62 °Climate normal

Ballwin, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high62°
Average low47°
Average precipitation0.1 in
Chance of precipitation23%
Record high81° (2023)
Record low33° (2001)
Wed, 2862° / 46°0.06Climate normal
62 °Climate normal

Ballwin, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high62°
Average low46°
Average precipitation0.06 in
Chance of precipitation22%
Record high79° (1999)
Record low33° (1969)
Thu, 2962° / 46°0.14Climate normal
62 °Climate normal

Ballwin, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high62°
Average low46°
Average precipitation0.14 in
Chance of precipitation28%
Record high82° (2024)
Record low29° (2017)
Fri, 3063° / 47°0.12Climate normal
63 °Climate normal

Ballwin, Friday, 30 October

Climate normal for this date — 60-year average.

Average high63°
Average low47°
Average precipitation0.12 in
Chance of precipitation33%
Record high81° (2024)
Record low30° (1980)
Sat, 3162° / 48°0.15Climate normal
62 °Climate normal

Ballwin, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high62°
Average low48°
Average precipitation0.15 in
Chance of precipitation40%
Record high80° (1968)
Record low28° (2023)
Sun, 0161° / 46°0.17Climate normal
61 °Climate normal

Ballwin, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high61°
Average low46°
Average precipitation0.17 in
Chance of precipitation28%
Record high80° (2016)
Record low26° (2023)
Mon, 0260° / 45°0.09Climate normal
60 °Climate normal

Ballwin, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°
Average low45°
Average precipitation0.09 in
Chance of precipitation33%
Record high79° (2016)
Record low27° (1966)
Tue, 0359° / 44°0.12Climate normal
59 °Climate normal

Ballwin, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.12 in
Chance of precipitation27%
Record high79° (1987)
Record low19° (1991)
Wed, 0458° / 45°0.15Climate normal
58 °Climate normal

Ballwin, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°
Average low45°
Average precipitation0.15 in
Chance of precipitation28%
Record high77° (1978)
Record low19° (1991)
Thu, 0558° / 43°0.17Climate normal
58 °Climate normal

Ballwin, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.17 in
Chance of precipitation35%
Record high78° (1978)
Record low24° (1991)
Fri, 0658° / 42°0.09Climate normal
58 °Climate normal

Ballwin, Friday, 6 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high77° (2023)
Record low28° (1982)

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 Ballwin, 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 Ballwin, 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.