Harrisburg, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Harrisburg now
Loading the National Weather Service forecast…
Harrisburg weather by the hour
Harrisburg weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Harrisburg.
This week in Harrisburg
Sunrise, sunset and moon in Harrisburg
What is the weather usually like in Harrisburg?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 24°F average low
- 47.6 inprecipitation per year · 1,209 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Harrisburg: May and August to October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station HARRISBURG, IL US (USC00113879), adjusted for the elevation of Harrisburg.
Harrisburg weather month by month
Sunrise and sunset in Harrisburg through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:06 AM | 5:00 PM | 9 h 54 min |
| February | 6:41 AM | 5:34 PM | 10 h 52 min |
| March | 7:03 AM | 7:02 PM | 11 h 59 min |
| April | 6:17 AM | 7:31 PM | 13 h 13 min |
| May | 5:42 AM | 7:58 PM | 14 h 15 min |
| June | 5:30 AM | 8:19 PM | 14 h 48 min |
| July | 5:43 AM | 8:17 PM | 14 h 34 min |
| August | 6:08 AM | 7:48 PM | 13 h 39 min |
| September | 6:35 AM | 7:03 PM | 12 h 28 min |
| October | 7:01 AM | 6:18 PM | 11 h 16 min |
| November | 6:33 AM | 4:44 PM | 10 h 11 min |
| December | 7:00 AM | 4:38 PM | 9 h 37 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Harrisburg?
Harrisburg has a humid subtropical climate. The warmest month is July, with an average high of 89°F (32°C), and the coldest is January, with average lows of 24°F (-5°C).
It gets about 47.6 inches (1,209 mm) of precipitation a year. The wettest month is April and the driest is September.
The best time to visit Harrisburg is May and August to October. At 397 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 Harrisburg
Weather in towns near Harrisburg
Questions about the weather in Harrisburg
What is the hottest month in Harrisburg?
July, with an average high of 89°F (32°C).
What is the coldest month in Harrisburg?
January, with an average low of 24°F (-5°C).
How much does it rain in Harrisburg?
About 47.6 inches (1,209 mm) a year; the wettest month is April.
Does it snow in Harrisburg?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Harrisburg?
May and August to October, when temperatures are most pleasant and rainy days are fewer.
What climate does Harrisburg have?
Humid subtropical (Köppen Cfa).
What is the weather like in Harrisburg in November?
Highs average 57°F and lows 36°F, with about 4.0 inches of precipitation.
What time is sunrise in Harrisburg?
Around 6:33 AM in mid-November, and sunset around 4:44 PM. Today’s exact times are shown above.
Where does this Harrisburg weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Harrisburg.
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