As of 03:32 CDT

Weather in Affton, MO

55°Current weather

Affton, Sunday, 11 October, 03:32

Clear. Feels like 55°. High 87°, low 53°.

Pressure29.97 inHg
Wind0.7 mph NE
Humidity87%
Visibility6.2 mi
Dew point52°

Monthly outlook for Affton, MO: average high 71.6°, average low 51.7°. That is 3° above the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (93.2°), the coolest 18 October (34.3°).

71.6°/51.7°
Average high / low
+3°
Above normal
3 / 5
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October73.3°67.3°+3.3°
21 October – 30 October68.7°63.6°+2.8°
31 October – 9 Novemberat normal59.3°—

October records over 66 years

91.4°1 October 2019All-time high
27.7°24 October 1981All-time low

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

Mon, 1292° / 61°0Clear
92 °Clear

Affton, Monday, 12 October

Clear. High 92°, low 61°.

Pressure29.91 inHg
Wind8.9 mph SW
Humidity37%
Visibility6.2 mi
Dew point58°
Tue, 1393° / 71°0Clear
93 °Clear

Affton, Tuesday, 13 October

Clear. High 93°, low 71°.

Pressure29.91 inHg
Wind7.2 mph SW
Humidity45%
Visibility6.2 mi
Dew point65°
Wed, 1481° / 72°0.21Light rain
81 °Light rain

Affton, Wednesday, 14 October

Light rain. High 81°, low 72°.

Pressure30.00 inHg
Wind3.1 mph S
Humidity81%
Visibility6.2 mi
Dew point71°
Thu, 1580° / 69°1.2Rain
80 °Rain

Affton, Thursday, 15 October

Rain. High 80°, low 69°.

Pressure30.03 inHg
Wind6.4 mph SE
Humidity80%
Visibility—
Dew point70°
Fri, 1670° / 47°0.2Rain
70 °Rain

Affton, Friday, 16 October

Rain. High 70°, low 47°.

Pressure30.36 inHg
Wind16.4 mph N
Humidity56%
Visibility—
Dew point47°
Sat, 1745° / 34°0Overcast
45 °Overcast

Affton, Saturday, 17 October

Overcast. High 45°, low 34°.

Pressure30.45 inHg
Wind18.9 mph NW
Humidity35%
Visibility—
Dew point17°
Sun, 1851° / 34°0Clear
51 °Clear

Affton, Sunday, 18 October

Clear. High 51°, low 34°.

Pressure30.56 inHg
Wind7.5 mph N
Humidity28%
Visibility—
Dew point15°
Mon, 1964° / 38°0Clear
64 °Clear

Affton, Monday, 19 October

Clear. High 64°, low 38°.

Pressure30.36 inHg
Wind10.7 mph S
Humidity25%
Visibility—
Dew point21°
Tue, 2070° / 44°0Clear
70 °Clear

Affton, Tuesday, 20 October

Clear. High 70°, low 44°.

Pressure30.24 inHg
Wind10.7 mph S
Humidity23%
Visibility—
Dew point26°
Wed, 2171° / 49°0Overcast
71 °Overcast

Affton, Wednesday, 21 October

Overcast. High 71°, low 49°.

Pressure30.24 inHg
Wind9.8 mph S
Humidity27%
Visibility—
Dew point32°
Thu, 2270° / 55°0Overcast
70 °Overcast

Affton, Thursday, 22 October

Overcast. High 70°, low 55°.

Pressure30.33 inHg
Wind5.8 mph SW
Humidity51%
Visibility—
Dew point49°
Fri, 2376° / 55°0Clear
76 °Clear

Affton, Friday, 23 October

Clear. High 76°, low 55°.

Pressure30.27 inHg
Wind9 mph S
Humidity51%
Visibility—
Dew point51°
Sat, 2470° / 55°0.02Light rain
70 °Light rain

Affton, Saturday, 24 October

Light rain. High 70°, low 55°.

Pressure30.15 inHg
Wind14 mph NW
Humidity43%
Visibility—
Dew point45°
Sun, 2559° / 46°0Clear
59 °Clear

Affton, Sunday, 25 October

Clear. High 59°, low 46°.

Pressure30.39 inHg
Wind10.1 mph N
Humidity37%
Visibility—
Dew point29°
Mon, 2666° / 44°0Clear
66 °Clear

Affton, Monday, 26 October

Clear. High 66°, low 44°.

Pressure30.12 inHg
Wind12.1 mph NW
Humidity37%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2762° / 47°0.1Climate normal
62 °Climate normal

Affton, 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 low34° (2001)
Wed, 2862° / 46°0.06Climate normal
62 °Climate normal

Affton, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high62°
Average low46°
Average precipitation0.06 in
Chance of precipitation25%
Record high79° (1999)
Record low30° (1969)
Thu, 2962° / 46°0.14Climate normal
62 °Climate normal

Affton, 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 low30° (1980)
Fri, 3063° / 47°0.12Climate normal
63 °Climate normal

Affton, Friday, 30 October

Climate normal for this date — 60-year average.

Average high63°
Average low47°
Average precipitation0.12 in
Chance of precipitation37%
Record high81° (2024)
Record low29° (1980)
Sat, 3163° / 48°0.15Climate normal
63 °Climate normal

Affton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high63°
Average low48°
Average precipitation0.15 in
Chance of precipitation40%
Record high80° (1968)
Record low28° (2023)
Sun, 0162° / 46°0.16Climate normal
62 °Climate normal

Affton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high62°
Average low46°
Average precipitation0.16 in
Chance of precipitation30%
Record high80° (2016)
Record low26° (1993)
Mon, 0260° / 45°0.09Climate normal
60 °Climate normal

Affton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°
Average low45°
Average precipitation0.09 in
Chance of precipitation35%
Record high79° (2016)
Record low27° (1966)
Tue, 0359° / 44°0.11Climate normal
59 °Climate normal

Affton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.11 in
Chance of precipitation28%
Record high79° (1987)
Record low20° (1991)
Wed, 0458° / 45°0.15Climate normal
58 °Climate normal

Affton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°
Average low45°
Average precipitation0.15 in
Chance of precipitation32%
Record high77° (1978)
Record low19° (1991)
Thu, 0558° / 43°0.17Climate normal
58 °Climate normal

Affton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.17 in
Chance of precipitation33%
Record high78° (1978)
Record low23° (1991)
Fri, 0658° / 42°0.09Climate normal
58 °Climate normal

Affton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation32%
Record high78° (2023)
Record low26° (1982)
Sat, 0758° / 42°0.08Climate normal
58 °Climate normal

Affton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation18%
Record high76° (1980)
Record low19° (1991)
Sun, 0858° / 42°0.04Climate normal
58 °Climate normal

Affton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.04 in
Chance of precipitation17%
Record high81° (2023)
Record low5° (1991)
Mon, 0959° / 43°0.09Climate normal
59 °Climate normal

Affton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.09 in
Chance of precipitation30%
Record high77° (2022)
Record low13° (1991)

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 Affton, 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 Affton, 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.