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Today Hourly 7 days 30 days August
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August 2026 Weather | St. Peters, Missouri

Today 8/12
Sunny with a Chance of Thunderstorms
Day 95°
Night 75°
57
Thu 8/13
Sunny with a Chance of Thunderstorms
Day 95°
Night 77°
55
Fri 8/14
Cloudy Weather
Day 99°
Night 75°
10
Sat 8/15
Hot Day
Day 99°
Night 73°
25
Sun 8/16
Cloudy Weather
Day 97°
Night 75°
55
Mon 8/17
Cloudy Weather
Day 90°
Night 68°
25
Tue 8/18
Sunny Weather
Day 86°
Night 68°
0
Wed 8/19
Cloudy Weather
Day 93°
Night 70°
4
Thu 8/20
Sunny Weather
Day 93°
Night 68°
2
Fri 8/21
Sunny Weather
Day 95°
Night 68°
1
Sat 8/22
Cloudy Weather
Day 93°
Night 68°
1
Sun 8/23
Cloudy Weather
Day 88°
Night 64°
55
Mon 8/24
Stormy Weather
Day 84°
Night 66°
59
Tue 8/25
Cloudy Weather
Day 88°
Night 64°
25
Wed 8/26
Cloudy Weather
Day 90°
Night 70°
20
Thu 8/27
Cloudy Weather
Day 81°
Night 61°
Fri 8/28
Cloudy Weather
Day 82°
Night 61°
Sat 8/29
Rainy Weather
Day 84°
Night 64°
Sun 8/30
Stormy Weather
Day 79°
Night 68°
Mon 8/31
Rainy Weather
Day 81°
Night 68°

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