Belvidere Weather in October
What's the weather like in Belvidere (Illinois) in October 2025?
The climate in Belvidere during October can be summarized as mild and reasonably dry.
October is in the fall / autumn in Belvidere and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 4°C (40°F) is normal.
| Daytime temperature | 16.8°C 62.2°F |
|---|---|
| Nightly temperature | 4.2°C 39.6°F |
| Average temperature | 10.5°C 50.9°F |
| Daily sunshine | 6.6 hrs |
| Avg rainfall | 70 mm 2.7 ins |
| Rainy days | 9 days |
| Sea temperature | 13.8°C 56.8°F |
| Humidity | 71% |
| Windspeed | 16.9kph 11 mph |
On average October is the 6th driest month of the year in Belvidere with around 70mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
October temperatures in Belvidere
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Belvidere in October 2025.
Other monthly averages
Best places to visit in October
Belvidere weather stats
| Hottest month: | July | 28.7°C 83.7°F |
|---|---|---|
| Driest month: | February | 28mm 1.1ins |
| Sunniest month: | July | 10.8hrs |
| Coldest month: | January | -3.2°C 26.2°F |
| Wettest month: | June | 111mm 4.4ins |
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