Williamsville, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Williamsville now
Loading the National Weather Service forecast…
Williamsville weather by the hour
Williamsville weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Williamsville.
This week in Williamsville
Sunrise, sunset and moon in Williamsville
What is the weather usually like in Williamsville?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 20°F average low
- 38.0 inprecipitation per year · 966 mm
- 21.8 insnowfall per year · 55 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Williamsville: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station SPRINGFIELD CAPITAL AP, IL US (USW00093822), adjusted for the elevation of Williamsville.
Williamsville weather month by month
Sunrise and sunset in Williamsville through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:16 AM | 4:59 PM | 9 h 42 min |
| February | 6:49 AM | 5:35 PM | 10 h 46 min |
| March | 7:07 AM | 7:06 PM | 11 h 58 min |
| April | 6:18 AM | 7:37 PM | 13 h 19 min |
| May | 5:41 AM | 8:07 PM | 14 h 26 min |
| June | 5:27 AM | 8:30 PM | 15 h 2 min |
| July | 5:40 AM | 8:27 PM | 14 h 46 min |
| August | 6:08 AM | 7:56 PM | 13 h 47 min |
| September | 6:38 AM | 7:08 PM | 12 h 30 min |
| October | 7:07 AM | 6:20 PM | 11 h 12 min |
| November | 6:42 AM | 4:43 PM | 10 h 1 min |
| December | 7:11 AM | 4:35 PM | 9 h 24 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Williamsville?
Williamsville has a hot-summer humid continental climate. The warmest month is July, with an average high of 87°F (30°C), and the coldest is January, with average lows of 20°F (-7°C).
It gets about 38.0 inches (966 mm) of precipitation a year. The wettest month is June and the driest is February. Snow is common: about 22 inches fall in an average year.
The best time to visit Williamsville is May–June and August–September. At 597 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 Williamsville
Weather in towns near Williamsville
Questions about the weather in Williamsville
What is the hottest month in Williamsville?
July, with an average high of 87°F (30°C).
What is the coldest month in Williamsville?
January, with an average low of 20°F (-7°C).
How much does it rain in Williamsville?
About 38.0 inches (966 mm) a year; the wettest month is June.
Does it snow in Williamsville?
Yes, about 22 inches of snow fall in an average year.
When is the best time to visit Williamsville?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Williamsville have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Williamsville in November?
Highs average 53°F and lows 34°F, with about 2.7 inches of precipitation.
What time is sunrise in Williamsville?
Around 6:42 AM in mid-November, and sunset around 4:43 PM. Today’s exact times are shown above.
Where does this Williamsville weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Williamsville.
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