St. John, MO weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in St. John now
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St. John weather by the hour
St. John weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of St. John.
This week in St. John
Sunrise, sunset and moon in St. John
What is the weather usually like in St. John?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 23°F average low
- 41.7 inprecipitation per year · 1,059 mm
- 16.6 insnowfall per year · 42 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit St. John: May–June and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ST LOUIS LAMBERT INTL AP, MO US (USW00013994), adjusted for the elevation of St. John.
St. John weather month by month
Sunrise and sunset in St. John through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:16 AM | 5:05 PM | 9 h 49 min |
| February | 6:50 AM | 5:40 PM | 10 h 49 min |
| March | 7:10 AM | 7:09 PM | 11 h 58 min |
| April | 6:23 AM | 7:39 PM | 13 h 16 min |
| May | 5:47 AM | 8:08 PM | 14 h 20 min |
| June | 5:34 AM | 8:29 PM | 14 h 54 min |
| July | 5:47 AM | 8:27 PM | 14 h 39 min |
| August | 6:14 AM | 7:57 PM | 13 h 43 min |
| September | 6:41 AM | 7:11 PM | 12 h 29 min |
| October | 7:09 AM | 6:24 PM | 11 h 15 min |
| November | 6:42 AM | 4:49 PM | 10 h 7 min |
| December | 7:10 AM | 4:42 PM | 9 h 31 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in St. John?
St. John has a hot-summer humid continental climate. The warmest month is July, with an average high of 89°F (32°C), and the coldest is January, with average lows of 23°F (-5°C).
It gets about 41.7 inches (1,059 mm) of precipitation a year. The wettest month is May and the driest is February. Snow is common: about 17 inches fall in an average year.
The best time to visit St. John is May–June and September–October. At 646 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about St. John
Weather in towns near St. John
Questions about the weather in St. John
What is the hottest month in St. John?
July, with an average high of 89°F (32°C).
What is the coldest month in St. John?
January, with an average low of 23°F (-5°C).
How much does it rain in St. John?
About 41.7 inches (1,059 mm) a year; the wettest month is May.
Does it snow in St. John?
Yes, about 17 inches of snow fall in an average year.
When is the best time to visit St. John?
May–June and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does St. John have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in St. John in November?
Highs average 55°F and lows 37°F, with about 3.4 inches of precipitation.
What time is sunrise in St. John?
Around 6:42 AM in mid-November, and sunset around 4:49 PM. Today’s exact times are shown above.
Where does this St. John weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of St. John.
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