As of 09:26 CDT

Weather in Ballwin, MO

66°Current weather

Ballwin, Thursday, 8 October, 09:26

Clear. Feels like 65°. High 83°, low 53°.

Pressure30.12 inHg
Wind0.9 mph E
Humidity70%
Visibility6.2 mi
Dew point55°

Monthly outlook for Ballwin, MO: average high 78.8°, average low 57.8°. That is 6.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 15 October (93.4°), the coolest 23 October (46.7°).

78.8°/57.8°
Average high / low
+6.3°
Above normal
3 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October83.4°68.6°+8.2°
18 October – 27 October71°64.1°+3.8°
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, 0987° / 54°0Clear
87 °Clear

Ballwin, Friday, 9 October

Clear. High 87°, low 54°.

Pressure30.12 inHg
Wind5.6 mph S
Humidity35%
Visibility6.2 mi
Dew point51°
Sat, 1080° / 54°0Overcast
80 °Overcast

Ballwin, Saturday, 10 October

Overcast. High 80°, low 54°.

Pressure30.06 inHg
Wind3.9 mph SE
Humidity50%
Visibility6.2 mi
Dew point56°
Sun, 1181° / 59°0Clear
81 °Clear

Ballwin, Sunday, 11 October

Clear. High 81°, low 59°.

Pressure29.94 inHg
Wind6.5 mph NW
Humidity55%
Visibility6.2 mi
Dew point57°
Mon, 1291° / 64°0Clear
91 °Clear

Ballwin, Monday, 12 October

Clear. High 91°, low 64°.

Pressure29.88 inHg
Wind9.3 mph SW
Humidity35%
Visibility—
Dew point54°
Tue, 1391° / 69°0Partly cloudy
91 °Partly cloudy

Ballwin, Tuesday, 13 October

Partly cloudy. High 91°, low 69°.

Pressure29.85 inHg
Wind9.6 mph SW
Humidity46%
Visibility—
Dew point62°
Wed, 1488° / 67°0Partly cloudy
88 °Partly cloudy

Ballwin, Wednesday, 14 October

Partly cloudy. High 88°, low 67°.

Pressure29.88 inHg
Wind11.5 mph S
Humidity43%
Visibility—
Dew point60°
Thu, 1593° / 77°0Light rain
93 °Light rain

Ballwin, Thursday, 15 October

Light rain. High 93°, low 77°.

Pressure29.88 inHg
Wind14 mph SW
Humidity36%
Visibility—
Dew point60°
Fri, 1676° / 55°0.52Rain
76 °Rain

Ballwin, Friday, 16 October

Rain. High 76°, low 55°.

Pressure30.24 inHg
Wind10.8 mph N
Humidity74%
Visibility—
Dew point56°
Sat, 1765° / 51°0Overcast
65 °Overcast

Ballwin, Saturday, 17 October

Overcast. High 65°, low 51°.

Pressure30.53 inHg
Wind10.8 mph N
Humidity42%
Visibility—
Dew point37°
Sun, 1867° / 48°0Overcast
67 °Overcast

Ballwin, Sunday, 18 October

Overcast. High 67°, low 48°.

Pressure30.39 inHg
Wind8 mph E
Humidity30%
Visibility—
Dew point29°
Mon, 1972° / 56°0.11Light rain
72 °Light rain

Ballwin, Monday, 19 October

Light rain. High 72°, low 56°.

Pressure30.21 inHg
Wind10.7 mph SW
Humidity71%
Visibility—
Dew point59°
Tue, 2073° / 61°0.13Light rain
73 °Light rain

Ballwin, Tuesday, 20 October

Light rain. High 73°, low 61°.

Pressure30.18 inHg
Wind7.5 mph SW
Humidity65%
Visibility—
Dew point59°
Wed, 2178° / 58°0.02Light rain
78 °Light rain

Ballwin, Wednesday, 21 October

Light rain. High 78°, low 58°.

Pressure30.09 inHg
Wind6.8 mph SW
Humidity56%
Visibility—
Dew point56°
Thu, 2270° / 54°0.02Light rain
70 °Light rain

Ballwin, Thursday, 22 October

Light rain. High 70°, low 54°.

Pressure30.00 inHg
Wind14.5 mph NW
Humidity69%
Visibility—
Dew point58°
Fri, 2367° / 47°0Clear
67 °Clear

Ballwin, Friday, 23 October

Clear. High 67°, low 47°.

Pressure30.18 inHg
Wind7.4 mph SE
Humidity31%
Visibility—
Dew point30°
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.