St. Elmo, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in St. Elmo now
Loading the National Weather Service forecast…
St. Elmo weather by the hour
St. Elmo weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of St. Elmo.
This week in St. Elmo
Sunrise, sunset and moon in St. Elmo
What is the weather usually like in St. Elmo?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 86°F average high
- Januarycoldest month · 21°F average low
- 41.2 inprecipitation per year · 1,046 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit St. Elmo: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station BROWNSTOWN 4 SW, IL US (USC00111020), adjusted for the elevation of St. Elmo.
St. Elmo weather month by month
Sunrise and sunset in St. Elmo through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:11 AM | 4:58 PM | 9 h 47 min |
| February | 6:44 AM | 5:34 PM | 10 h 49 min |
| March | 7:04 AM | 7:03 PM | 11 h 58 min |
| April | 6:16 AM | 7:33 PM | 13 h 17 min |
| May | 5:40 AM | 8:02 PM | 14 h 22 min |
| June | 5:27 AM | 8:24 PM | 14 h 56 min |
| July | 5:40 AM | 8:22 PM | 14 h 41 min |
| August | 6:07 AM | 7:51 PM | 13 h 44 min |
| September | 6:35 AM | 7:05 PM | 12 h 29 min |
| October | 7:03 AM | 6:18 PM | 11 h 14 min |
| November | 6:37 AM | 4:42 PM | 10 h 5 min |
| December | 7:05 AM | 4:35 PM | 9 h 29 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in St. Elmo?
St. Elmo has a hot-summer humid continental climate. The warmest month is July, with an average high of 86°F (30°C), and the coldest is January, with average lows of 21°F (-6°C).
It gets about 41.2 inches (1,046 mm) of precipitation a year. The wettest month is May and the driest is December.
The best time to visit St. Elmo is May–June and August–September. At 614 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. Elmo
Weather in towns near St. Elmo
Questions about the weather in St. Elmo
What is the hottest month in St. Elmo?
July, with an average high of 86°F (30°C).
What is the coldest month in St. Elmo?
January, with an average low of 21°F (-6°C).
How much does it rain in St. Elmo?
About 41.2 inches (1,046 mm) a year; the wettest month is May.
Does it snow in St. Elmo?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit St. Elmo?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does St. Elmo have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in St. Elmo in November?
Highs average 53°F and lows 35°F, with about 3.6 inches of precipitation.
What time is sunrise in St. Elmo?
Around 6:37 AM in mid-November, and sunset around 4:42 PM. Today’s exact times are shown above.
Where does this St. Elmo weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of St. Elmo.
Last updated: