Dayton, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Dayton now
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Dayton weather by the hour
Dayton weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Dayton.
This week in Dayton
Sunrise, sunset and moon in Dayton
What is the weather usually like in Dayton?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 84°F average high
- Januarycoldest month · 14°F average low
- 39.0 inprecipitation per year · 992 mm
- 25.0 insnowfall per year · 64 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Dayton: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MARSEILLES LOCK, IL US (USC00115372), adjusted for the elevation of Dayton.
Dayton weather month by month
Sunrise and sunset in Dayton through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:17 AM | 4:52 PM | 9 h 34 min |
| February | 6:48 AM | 5:30 PM | 10 h 42 min |
| March | 7:04 AM | 7:03 PM | 11 h 58 min |
| April | 6:13 AM | 7:36 PM | 13 h 23 min |
| May | 5:34 AM | 8:08 PM | 14 h 34 min |
| June | 5:19 AM | 8:32 PM | 15 h 12 min |
| July | 5:33 AM | 8:28 PM | 14 h 55 min |
| August | 6:03 AM | 7:56 PM | 13 h 52 min |
| September | 6:34 AM | 7:06 PM | 12 h 31 min |
| October | 7:05 AM | 6:15 PM | 11 h 9 min |
| November | 6:42 AM | 4:37 PM | 9 h 54 min |
| December | 7:12 AM | 4:28 PM | 9 h 15 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Dayton?
Dayton has a hot-summer humid continental climate. The warmest month is July, with an average high of 84°F (29°C), and the coldest is January, with average lows of 14°F (-10°C).
It gets about 39.0 inches (992 mm) of precipitation a year. The wettest month is June and the driest is February. Snow is common: about 25 inches fall in an average year.
The best time to visit Dayton is June to September. At 564 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 Dayton
Weather in towns near Dayton
Questions about the weather in Dayton
What is the hottest month in Dayton?
July, with an average high of 84°F (29°C).
What is the coldest month in Dayton?
January, with an average low of 14°F (-10°C).
How much does it rain in Dayton?
About 39.0 inches (992 mm) a year; the wettest month is June.
Does it snow in Dayton?
Yes, about 25 inches of snow fall in an average year.
When is the best time to visit Dayton?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Dayton have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Dayton in November?
Highs average 49°F and lows 30°F, with about 2.7 inches of precipitation.
What time is sunrise in Dayton?
Around 6:42 AM in mid-November, and sunset around 4:37 PM. Today’s exact times are shown above.
Where does this Dayton weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Dayton.
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