St. Peters, Missouri Weather Forecast

St. Charles County 38.78°N, 90.61°W Pop. 58,212

St. Peters is in St. Charles County, Missouri. This page has current conditions, radar, a 7-day forecast, observed rainfall and the NWS written forecast for the area.

Active Weather Alerts

7-Day Forecast for St. Peters

Loading forecast...

Hourly charts, 15-day outlook and more for St. Peters in Local Wx →

Growing Conditions

Growing degree days

4,455

since Apr 1, base 50°F

Rain, last 30 days

0.48 in

model analysis

Rain, year to date

45.11 in

since Jan 1

2-inch soil temperature

58°F

yesterday, daily average

Reference ET, last 7 days

0.73 in

FAO-56 grass reference

Through Oct 23. Season totals use model analysis for this point and update every morning. Soil, ET and spray tools for St. Peters →

Current Stats & Observations

NWS Forecast

About St. Peters Weather

St. Peters sits at about 528 feet above sea level in St. Charles County, Missouri. About 58,212 people live in the St. Peters area. Official forecasts and warnings for the area come from the National Weather Service LSX office, and the nearest NEXRAD radar site is KLSX. The city is in USDA plant hardiness zone 6b, where the coldest winter night typically falls between -5 to 0°F. Over the past ten years the last spring freeze has come around Apr 15 and the first fall freeze around Nov 5.

Nearby Forecasts

St. Charles, MO O'Fallon, MO Florissant, MO St. Louis, MO Alton, IL Springfield, IL Jefferson City, MO Columbia, MO

Largest Cities in Missouri

St. Louis, MO Kansas City, MO Springfield, MO Columbia, MO Independence, MO Lee's Summit, MO O'Fallon, MO Joplin, MO St. Joseph, MO St. Charles, MO

All Missouri forecasts (15) → All states → Interactive forecast tools →