See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
28°
Clear
Feels Like: 30°
Min: 24°
Max: 38°
The next few hours will be clear, with today reaching 38°C and dropping to 23°C. The coming days will be mostly clear throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:49
Sunrise
19:04
Sunset
Moon
Waxing Crescent
11:35
Moonrise
20:43
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Saint Peters today, September 15, 2026
Saint Peters is set for a fine, sunny day on September 15, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. Expect a brighter morning, with limited cloud around 0% by 08:00. Conditions start on a settled note.
Temperatures climb from an overnight low near 24°C toward a daytime high of about 38°C. The air stays humid, with relative humidity between 28% and 81% and the peak around 08:00. Airflow remains manageable, reaching about 5.2 km/h around 11:00.
Expect persistent cloud later on, with amounts around 100% by 19:00. Sunshine remains the exception, not the rule. Expect visibility around 16.1 km. Expect sunrise at 06:49, sunset at 19:04, and 12 hours 14 minutes of sunlight today overall.
Overall, Saint Peters on September 15, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 38°C.
Frequently asked questions about weather in Saint Peters
How warm does it get in Saint Peters?
The warmest month in Saint Peters is July, with average high temperatures of 31°C. The average temperature during this period is around 26°C.
How cold does it get in Saint Peters?
The coldest month in Saint Peters is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Saint Peters?
The wettest month in Saint Peters is May, with an average of 130mm of precipitation.
What is the driest time of year in Saint Peters?
The driest month in Saint Peters is December, with an average of 52mm of precipitation.
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