St. Charles, IA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in St. Charles now
Loading the National Weather Service forecast…
St. Charles weather by the hour
St. Charles weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of St. Charles.
This week in St. Charles
Sunrise, sunset and moon in St. Charles
What is the weather usually like in St. Charles?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 11°F average low
- 37.8 inprecipitation per year · 960 mm
- 30.8 insnowfall per year · 78 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit St. Charles: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station INDIANOLA 2W, IA US (USC00134063), adjusted for the elevation of St. Charles.
St. Charles weather month by month
Sunrise and sunset in St. Charles through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:36 AM | 5:12 PM | 9 h 35 min |
| February | 7:08 AM | 5:50 PM | 10 h 42 min |
| March | 7:24 AM | 7:23 PM | 11 h 58 min |
| April | 6:33 AM | 7:56 PM | 13 h 23 min |
| May | 5:54 AM | 8:28 PM | 14 h 33 min |
| June | 5:39 AM | 8:51 PM | 15 h 11 min |
| July | 5:53 AM | 8:48 PM | 14 h 54 min |
| August | 6:23 AM | 8:15 PM | 13 h 52 min |
| September | 6:54 AM | 7:26 PM | 12 h 31 min |
| October | 7:25 AM | 6:35 PM | 11 h 10 min |
| November | 7:02 AM | 4:57 PM | 9 h 55 min |
| December | 7:32 AM | 4:48 PM | 9 h 16 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in St. Charles?
St. Charles has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (29°C), and the coldest is January, with average lows of 11°F (-12°C).
It gets about 37.8 inches (960 mm) of precipitation a year. The wettest month is June and the driest is January. Snow is common: about 31 inches fall in an average year.
The best time to visit St. Charles is June to September. At 1,063 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. Charles
Weather in towns near St. Charles
Questions about the weather in St. Charles
What is the hottest month in St. Charles?
July, with an average high of 85°F (29°C).
What is the coldest month in St. Charles?
January, with an average low of 11°F (-12°C).
How much does it rain in St. Charles?
About 37.8 inches (960 mm) a year; the wettest month is June.
Does it snow in St. Charles?
Yes, about 31 inches of snow fall in an average year.
When is the best time to visit St. Charles?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does St. Charles have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in St. Charles in November?
Highs average 49°F and lows 27°F, with about 1.9 inches of precipitation.
What time is sunrise in St. Charles?
Around 7:02 AM in mid-November, and sunset around 4:57 PM. Today’s exact times are shown above.
Where does this St. Charles weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of St. Charles.
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