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Allenton, MO Weather Tomorrow

Before heading out, check tomorrow's Allenton weather and the extended 5 day forecast featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction across the Allenton area and around St. Louis county, Missouri.
Updated: Sun Oct 18th 2026 10:15 AM CDT
Allenton, MO Weather – 10-18 – Sunny
67° / 47°
Sunny
A sunny day is in the forecast for Allenton, with a high of 67°F and a low of 47°F. There's a very small chance of rainfall, only about 1%. Winds will be light at 9mph and gusts of 15.2mph at 9 PM. Humidity levels should be comfortable, sitting around 33% on average, the maximum being 37% at 11 PM and 22% being its lowest at 2 PM. Barometric pressure is its highest of 30.46inHg at 11 AM, a lowest point of 30.33inHg at 4 PM with an avg 30.37inHg.
Allenton, MO Weather – 10-19 – Sunny
72° / 52°

Weather Tomorrow

Sunny
In Allenton, bright and sunny conditions with highs near 72°F and lows around 52°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 6mph and gusts of 11.2mph at 12 AM. Humidity levels should be comfortable, sitting around 35% on average, the maximum being 47% at 7 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 30.4inHg at 9 AM, a lowest point of 30.27inHg at 4 PM with an avg 30.34inHg.
Allenton, MO Weather – 10-20 – Overcast
73° / 57°
Overcast
Allenton could see overcast with daytime highs of 73°F and nighttime lows near 57°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 6mph and gusts of 15.7mph at 9 PM. Humidity levels should be comfortable, sitting around 38% on average, the maximum being 49% at 7 AM and 25% being its lowest at 2 PM. Barometric pressure is its highest of 30.36inHg at 9 AM, a lowest point of 30.26inHg at 4 PM with an avg 30.3inHg.
Allenton, MO Weather – 10-21 – Sunny
75° / 57°
Sunny
In Allenton, a sunny day is likely with a high near 75°F and a low around 57°F. There's a very small chance of rainfall, only about 1%. Winds will be light at 5mph and gusts of 12.5mph at 8 PM. Humidity levels should be comfortable, sitting around 35% on average, the maximum being 47% at 7 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 30.29inHg at 9 AM, a lowest point of 30.17inHg at 4 PM with an avg 30.24inHg.
Allenton, MO Weather – 10-22 – Smoky Haze
78° / 60°
Smoky Haze
Smoky Haze is in the forecast for Allenton, with a high of 78°F and a low of 60°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 5mph and gusts of 13.9mph at 3 PM. Humidity levels should be comfortable, sitting around 33% on average, the maximum being 43% at 8 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 30.23inHg at 9 AM, a lowest point of 30.13inHg at 4 PM with an avg 30.18inHg.
Allenton, MO Weather – 10-23 – Sunny
78° / 61°
Sunny
Daytime highs will reach 78°F with lows dropping to 61°F in Allenton, where it will be sunny. There's a very small chance of rainfall, only about 3%. Winds will be light at 8mph and gusts of 21mph at 10 PM. Humidity levels should be comfortable, sitting around 34% on average, the maximum being 42% at 7 AM and 25% being its lowest at 3 PM. Barometric pressure is its highest of 30.25inHg at 10 AM, a lowest point of 30.17inHg at 4 PM with an avg 30.21inHg.

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