Port Byron, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Port Byron now
Loading the National Weather Service forecast…
Port Byron weather by the hour
Port Byron weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Port Byron.
This week in Port Byron
Sunrise, sunset and moon in Port Byron
What is the weather usually like in Port Byron?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 14°F average low
- 37.1 inprecipitation per year · 943 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Port Byron: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station LE CLAIRE L&D 14, IA US (USC00134705), adjusted for the elevation of Port Byron.
Port Byron weather month by month
Sunrise and sunset in Port Byron through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:23 AM | 4:57 PM | 9 h 33 min |
| February | 6:54 AM | 5:36 PM | 10 h 41 min |
| March | 7:11 AM | 7:09 PM | 11 h 58 min |
| April | 6:19 AM | 7:43 PM | 13 h 23 min |
| May | 5:39 AM | 8:15 PM | 14 h 35 min |
| June | 5:24 AM | 8:38 PM | 15 h 14 min |
| July | 5:38 AM | 8:35 PM | 14 h 56 min |
| August | 6:08 AM | 8:02 PM | 13 h 53 min |
| September | 6:40 AM | 7:12 PM | 12 h 31 min |
| October | 7:12 AM | 6:21 PM | 11 h 9 min |
| November | 6:49 AM | 4:42 PM | 9 h 53 min |
| December | 7:19 AM | 4:33 PM | 9 h 13 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Port Byron?
Port Byron has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (29°C), and the coldest is January, with average lows of 14°F (-10°C).
It gets about 37.1 inches (943 mm) of precipitation a year. The wettest month is May and the driest is January.
The best time to visit Port Byron is June to September. At 604 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 Port Byron
Weather in towns near Port Byron
Questions about the weather in Port Byron
What is the hottest month in Port Byron?
July, with an average high of 85°F (29°C).
What is the coldest month in Port Byron?
January, with an average low of 14°F (-10°C).
How much does it rain in Port Byron?
About 37.1 inches (943 mm) a year; the wettest month is May.
Does it snow in Port Byron?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Port Byron?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Port Byron have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Port Byron in November?
Highs average 48°F and lows 31°F, with about 2.1 inches of precipitation.
What time is sunrise in Port Byron?
Around 6:49 AM in mid-November, and sunset around 4:42 PM. Today’s exact times are shown above.
Where does this Port Byron weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Port Byron.
Last updated: