Rio, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Rio now
Loading the National Weather Service forecast…
Rio weather by the hour
Rio weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Rio.
This week in Rio
Sunrise, sunset and moon in Rio
What is the weather usually like in Rio?
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 · 990 mm
- 25.9 insnowfall per year · 66 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Rio: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station GALESBURG, IL US (USC00113320), adjusted for the elevation of Rio.
Rio weather month by month
Sunrise and sunset in Rio through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:22 AM | 4:59 PM | 9 h 36 min |
| February | 6:54 AM | 5:37 PM | 10 h 43 min |
| March | 7:11 AM | 7:09 PM | 11 h 58 min |
| April | 6:20 AM | 7:42 PM | 13 h 22 min |
| May | 5:41 AM | 8:14 PM | 14 h 32 min |
| June | 5:26 AM | 8:37 PM | 15 h 10 min |
| July | 5:40 AM | 8:34 PM | 14 h 53 min |
| August | 6:10 AM | 8:01 PM | 13 h 51 min |
| September | 6:41 AM | 7:12 PM | 12 h 31 min |
| October | 7:12 AM | 6:22 PM | 11 h 10 min |
| November | 6:48 AM | 4:44 PM | 9 h 56 min |
| December | 7:18 AM | 4:35 PM | 9 h 17 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Rio?
Rio 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 (990 mm) of precipitation a year. The wettest month is May and the driest is January. Snow is common: about 26 inches fall in an average year.
The best time to visit Rio is June to September. At 778 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 Rio
Weather in towns near Rio
Questions about the weather in Rio
What is the hottest month in Rio?
July, with an average high of 84°F (29°C).
What is the coldest month in Rio?
January, with an average low of 14°F (-10°C).
How much does it rain in Rio?
About 39.0 inches (990 mm) a year; the wettest month is May.
Does it snow in Rio?
Yes, about 26 inches of snow fall in an average year.
When is the best time to visit Rio?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Rio have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Rio in November?
Highs average 48°F and lows 30°F, with about 2.6 inches of precipitation.
What time is sunrise in Rio?
Around 6:48 AM in mid-November, and sunset around 4:44 PM. Today’s exact times are shown above.
Where does this Rio weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Rio.
Last updated: