Weather in Saint Peters, Missouri, United States

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7-Day Detailed Weather Forecast for Saint Peters

This Afternoon

Temperature: 84°F

Wind Speed: 3 to 7 mph

Wind Direction: S

Forecast: Isolated showers and thunderstorms before 5pm. Cloudy, with a high near 84. South wind 3 to 7 mph. Chance of precipitation is 20%.

Tonight

Temperature: 65°F

Wind Speed: 5 to 9 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms between 10pm and 3am, then showers and thunderstorms likely between 3am and 5am, then a slight chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 65. Southwest wind 5 to 9 mph. Chance of precipitation is 60%.

Sunday

Temperature: 77°F

Wind Speed: 13 mph

Wind Direction: NW

Forecast: A chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 77. Northwest wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Sunday Night

Temperature: 56°F

Wind Speed: 1 to 10 mph

Wind Direction: NW

Forecast: Partly cloudy, with a low around 56. Northwest wind 1 to 10 mph.

Monday

Temperature: 79°F

Wind Speed: 0 to 6 mph

Wind Direction: NW

Forecast: Mostly sunny, with a high near 79. Northwest wind 0 to 6 mph.

Monday Night

Temperature: 57°F

Wind Speed: 5 mph

Wind Direction: W

Forecast: Mostly clear, with a low around 57.

Tuesday

Temperature: 82°F

Wind Speed: 5 to 12 mph

Wind Direction: SW

Forecast: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.

Tuesday Night

Temperature: 62°F

Wind Speed: 3 to 10 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

Wednesday

Temperature: 88°F

Wind Speed: 6 to 17 mph

Wind Direction: S

Forecast: A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 50%.

Wednesday Night

Temperature: 70°F

Wind Speed: 14 to 17 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 70. Chance of precipitation is 70%.

Thursday

Temperature: 84°F

Wind Speed: 7 to 13 mph

Wind Direction: W

Forecast: Rain showers likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.

Thursday Night

Temperature: 63°F

Wind Speed: 1 to 7 mph

Wind Direction: NW

Forecast: A chance of rain showers. Partly cloudy, with a low around 63. Chance of precipitation is 40%.

Juneteenth

Temperature: 85°F

Wind Speed: 1 to 6 mph

Wind Direction: N

Forecast: A chance of rain showers before 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.

Friday Night

Temperature: 66°F

Wind Speed: 5 mph

Wind Direction: E

Forecast: A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 66. Chance of precipitation is 20%.