Mount Prospect, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Mount Prospect now
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Mount Prospect weather by the hour
Mount Prospect weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Mount Prospect.
This week in Mount Prospect
Sunrise, sunset and moon in Mount Prospect
What is the weather usually like in Mount Prospect?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 84°F average high
- Januarycoldest month · 18°F average low
- 32.3 inprecipitation per year · 820 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Mount Prospect: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station CHICAGO PALWAUKEE AP, IL US (USW00004838), adjusted for the elevation of Mount Prospect.
Mount Prospect weather month by month
Sunrise and sunset in Mount Prospect through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:15 AM | 4:46 PM | 9 h 31 min |
| February | 6:45 AM | 5:25 PM | 10 h 40 min |
| March | 7:01 AM | 6:59 PM | 11 h 58 min |
| April | 6:09 AM | 7:34 PM | 13 h 25 min |
| May | 5:29 AM | 8:07 PM | 14 h 38 min |
| June | 5:13 AM | 8:30 PM | 15 h 17 min |
| July | 5:27 AM | 8:27 PM | 14 h 59 min |
| August | 5:58 AM | 7:53 PM | 13 h 55 min |
| September | 6:30 AM | 7:02 PM | 12 h 32 min |
| October | 7:03 AM | 6:11 PM | 11 h 8 min |
| November | 6:40 AM | 4:32 PM | 9 h 51 min |
| December | 7:11 AM | 4:22 PM | 9 h 11 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Mount Prospect?
Mount Prospect 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 18°F (-8°C).
It gets about 32.3 inches (820 mm) of precipitation a year. The wettest month is June and the driest is February.
The best time to visit Mount Prospect is June to September. At 663 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 Mount Prospect
Weather in towns near Mount Prospect
Questions about the weather in Mount Prospect
What is the hottest month in Mount Prospect?
July, with an average high of 84°F (29°C).
What is the coldest month in Mount Prospect?
January, with an average low of 18°F (-8°C).
How much does it rain in Mount Prospect?
About 32.3 inches (820 mm) a year; the wettest month is June.
Does it snow in Mount Prospect?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Mount Prospect?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Mount Prospect have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Mount Prospect in November?
Highs average 48°F and lows 33°F, with about 2.1 inches of precipitation.
What time is sunrise in Mount Prospect?
Around 6:40 AM in mid-November, and sunset around 4:32 PM. Today’s exact times are shown above.
Where does this Mount Prospect weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Mount Prospect.
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