St. Peters, MO Weather


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The most pleasant months of the year for St. Peters are September, May and June. In St. Peters, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for St. Peters with an average high temperature of 87.9°, which ranks it as cooler than most places in Missouri. February is the snowiest month in St. Peters with 4.4 inches of snow, and 5 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - St. Peters, MO

7 PM PST

Showers And Thunderstorms

65°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightShowers And Thunderstorms60° / 82°S 15 mph
Saturday NightMostly Cloudy then Isolated Rain Showers69° / 79°S 10 to 15 mph
Sunday NightChance Showers And Thunderstorms then Showers And Thunderstorms64° / 77°S 16 to 20 mph
Monday NightShowers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms56° / 83°SW 6 to 12 mph
Tuesday NightSlight Chance Showers And Thunderstorms62° / 82°S 14 mph
Wednesday NightChance Showers And Thunderstorms62° / 78°SE 13 mph
Thursday NightChance Showers And Thunderstorms54° / 74°NW 14 mph

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 21
Rain: averages 43 inches of rain a year
Snow: averages 13 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the St. Peters area is 7.8 (10=best), which means it is more comfortable than most places in Missouri.

7.8 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January39° 21°
February45° 24°
March55° 33°
April67° 44°
May76° 54°
June84° 63°
July88° 67°
August87° 65°
September80° 56°
October68° 45°
November56° 35°
December42° 24°
Hot, Freezing, Rainy, Snowy Days: St. Peters
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02672
February02272
March015101
April03100
May10110
June5090
July12080
August11080
September3080
October0290
November01290
December02482

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for St. Peters
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My husband just took a job out here in St. Louis about four months ago. We are from Loveland Ohio (a small town 25 miles out of Cincinnati). When I knew it was a  More

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Recently, I read that Forbes called St. Peters, MO one of the best places to retire in the country. It must be noted, though, that this town came about 300th on the  More

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