Rock Island, WA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Rock Island now
Loading the National Weather Service forecast…
Rock Island weather by the hour
Rock Island weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Rock Island.
This week in Rock Island
Sunrise, sunset and moon in Rock Island
What is the weather usually like in Rock Island?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 90°F average high
- Januarycoldest month · 26°F average low
- 7.8 inprecipitation per year · 199 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Rock Island: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station WENATCHEE PANGBORN AP, WA US (USW00094239), adjusted for the elevation of Rock Island.
Rock Island weather month by month
Sunrise and sunset in Rock Island through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:41 AM | 4:39 PM | 8 h 58 min |
| February | 7:03 AM | 5:25 PM | 10 h 22 min |
| March | 7:11 AM | 7:07 PM | 11 h 56 min |
| April | 6:09 AM | 7:51 PM | 13 h 41 min |
| May | 5:21 AM | 8:32 PM | 15 h 10 min |
| June | 5:01 AM | 9:00 PM | 15 h 59 min |
| July | 5:17 AM | 8:55 PM | 15 h 37 min |
| August | 5:55 AM | 8:14 PM | 14 h 18 min |
| September | 6:37 AM | 7:14 PM | 12 h 37 min |
| October | 7:18 AM | 6:14 PM | 10 h 56 min |
| November | 7:03 AM | 4:26 PM | 9 h 22 min |
| December | 7:39 AM | 4:12 PM | 8 h 32 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Rock Island?
Rock Island has a cold semi-arid climate. The warmest month is July, with an average high of 90°F (32°C), and the coldest is January, with average lows of 26°F (-3°C).
It gets about 7.8 inches (199 mm) of precipitation a year. The wettest month is December and the driest is August.
The best time to visit Rock Island is May–June and August–September. At 643 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 Rock Island
Weather in towns near Rock Island
Questions about the weather in Rock Island
What is the hottest month in Rock Island?
July, with an average high of 90°F (32°C).
What is the coldest month in Rock Island?
January, with an average low of 26°F (-3°C).
How much does it rain in Rock Island?
About 7.8 inches (199 mm) a year; the wettest month is December.
Does it snow in Rock Island?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Rock Island?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Rock Island have?
Cold semi-arid (Köppen BSk).
What is the weather like in Rock Island in November?
Highs average 46°F and lows 33°F, with about 0.9 inches of precipitation.
What time is sunrise in Rock Island?
Around 7:03 AM in mid-November, and sunset around 4:26 PM. Today’s exact times are shown above.
Where does this Rock Island weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Rock Island.
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