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June 16th, 2026 :: 7:14 am CDT   

Local Weather Report for
Saint Peters
Missouri, United States

 Saint Peters Weather Forecast Summary  
 
Today
Jun 16th
Wednesday
Jun 17th
Thursday
Jun 18th
Friday
Jun 19th
Saturday
Jun 20th
Mostly Sunny Thundershowers Thundershowers Mostly Sunny Sunny
73°F
90°F
59°F
74°F
61°F
75°F
57°F
81°F
59°F
 
 Saint Peters Detailed Weather Forecast  
 
Tuesday, June 16th, 2026
Morning Temperature: 64°F
Mostly cloudy with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 67°F
Mostly sunny with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 68°F
Mostly clear with a chance of showers or thundershowers.
Wednesday, June 17th, 2026
Overnight Temperature: 60°F
Mostly clear.
Morning Temperature: 72°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy.
Afternoon Temperature: 89°F
Sunny. Chance of a thunderstorm. Wind 20 to 30 mph.
Evening Temperature: 78°F
Clear with a few showers. Chance of a thunderstorm. Wind 20 to 30 mph.
Thursday, June 18th, 2026
Overnight Temperature: 69°F
Clear with showers likely. Chance of a thunderstorm.
Morning Temperature: 66°F
Mostly sunny.
Afternoon Temperature: 72°F
A mix of sun and cloud. Windy at times.
Evening Temperature: 64°F
Mostly clear.
Friday, June 19th, 2026
Overnight Temperature: 58°F
Clear.
Morning Temperature: 65°F
Mostly sunny.
Afternoon Temperature: 74°F
A mix of sun and cloud. Windy at times.
Evening Temperature: 66°F
Clear.
Saturday, June 20th, 2026
Overnight Temperature: 59°F
Clear.
Morning Temperature: 67°F
Sunny.
Afternoon Temperature: 80°F
Sunny. Windy at times.
Evening Temperature: 71°F
Clear with cloudy periods with a chance of showers. Windy at times.
Sunday, June 21st, 2026
Overnight Temperature: 67°F
A mix of cloudy and clear skies with showers likely. Windy.
Morning Temperature: 70°F
Mostly cloudy with a few showers. Windy.
Afternoon Temperature: 79°F
Sunny with cloudy periods with a chance of showers or thundershowers. Windy.
Evening Temperature: 70°F
A mix of clear and cloudy skies with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Monday, June 22nd, 2026
Overnight Temperature: 63°F
Cloudy with a chance of showers. Windy at times.
Morning Temperature: 61°F
Mostly cloudy with a chance of showers. Windy at times.
Afternoon Temperature: 63°F
Cloudy with a chance of showers.
Evening Temperature: 65°F
Mostly cloudy.
Tuesday, June 23rd, 2026
Overnight Temperature: 64°F
A mix of cloudy and clear skies.
Morning Temperature: 63°F
A mix of sun and cloud.
Afternoon Temperature: 71°F
A mix of cloud and sun.
Evening Temperature: 67°F
A mix of cloudy and clear skies.
Wednesday, June 24th, 2026
Overnight Temperature: 66°F
A mix of cloudy and clear skies.
Morning Temperature: 68°F
Sunny with cloudy periods.
Afternoon Temperature: 79°F
A mix of sun and cloud. Slight chance of a thunderstorm.
Evening Temperature: 73°F
Mostly clear. Chance of a thunderstorm.





 

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This WeatherCity Weather Forecast for Saint Peters, Missouri, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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