Rock Grove, IL
Unincorporated community in Stephenson County, Illinois
Rock Grove is a small unincorporated community in Stephenson County, Illinois. It is 4.0 miles SE of Rock City, the nearest town. Its ZIP code is 61070.
Rock Grove at a glance
- State
- Illinois
- County
- Stephenson County
- ZIP code
- 61070
- Nearest town
- Rock City (4.0 mi)
- Time zone
- America/Chicago
- Coordinates
- 42.4631, -89.5119
Weather in Rock Grove now
Loading the National Weather Service forecast…
Rock Grove weather by the hour
Rock Grove weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Rock Grove.
This week in Rock Grove
Sunrise, sunset and moon in Rock Grove
What is the weather usually like in Rock Grove?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 83°F average high
- Januarycoldest month · 11°F average low
- 39.7 inprecipitation per year · 1,009 mm
- 41.5 insnowfall per year · 105 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Rock Grove: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MONROE WWTP, WI US (USC00475573), adjusted for the elevation of Rock Grove.
Rock Grove weather month by month
Sunrise and sunset in Rock Grove through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:23 AM | 4:52 PM | 9 h 28 min |
| February | 6:52 AM | 5:31 PM | 10 h 38 min |
| March | 7:07 AM | 7:05 PM | 11 h 57 min |
| April | 6:14 AM | 7:41 PM | 13 h 26 min |
| May | 5:34 AM | 8:14 PM | 14 h 40 min |
| June | 5:18 AM | 8:38 PM | 15 h 20 min |
| July | 5:33 AM | 8:35 PM | 15 h 2 min |
| August | 6:03 AM | 8:01 PM | 13 h 57 min |
| September | 6:36 AM | 7:09 PM | 12 h 32 min |
| October | 7:09 AM | 6:17 PM | 11 h 7 min |
| November | 6:47 AM | 4:37 PM | 9 h 49 min |
| December | 7:19 AM | 4:27 PM | 9 h 8 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Rock Grove?
Rock Grove has a hot-summer humid continental climate. The warmest month is July, with an average high of 83°F (28°C), and the coldest is January, with average lows of 11°F (-12°C).
It gets about 39.7 inches (1,009 mm) of precipitation a year. The wettest month is June and the driest is January. Snow is common: about 42 inches fall in an average year.
The best time to visit Rock Grove is June to September. 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.
Webcams near Rock Grove
The closest live webcam is Madison: Westwood › North-west: US 12/18 at Seminole Hwy, 39.6 miles N of Rock Grove.
Webcams: Windy.com. Distances in a straight line from Rock Grove.
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Map of Rock Grove, IL
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Rock Grove Street View
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Questions about Rock Grove
Where is Rock Grove, IL?
Rock Grove is an unincorporated community in Stephenson County, Illinois, 4.0 miles SE of Rock City.
What county is Rock Grove in?
Rock Grove is in Stephenson County, Illinois.
What is the ZIP code of Rock Grove, IL?
The ZIP code for Rock Grove is 61070.
What is the nearest town to Rock Grove?
Rock City, 4.0 miles away.
Are there webcams near Rock Grove?
Yes. The closest is Madison: Westwood › North-west: US 12/18 at Seminole Hwy, 39.6 miles away.
What is the hottest month in Rock Grove?
July, with an average high of 83°F (28°C).
What is the coldest month in Rock Grove?
January, with an average low of 11°F (-12°C).
How much does it rain in Rock Grove?
About 39.7 inches (1,009 mm) a year; the wettest month is June.
Does it snow in Rock Grove?
Yes, about 42 inches of snow fall in an average year.
When is the best time to visit Rock Grove?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Rock Grove have?
Hot-summer humid continental (Köppen Dfa).
Last updated: