10-Day Weather Forecast - Petersburg, IL
- |20°F30% Chance of SnowHourly details
Tonight
20°FMostly cloudy. A chance of snow late this evening then a slight chance of snow. Blustery and much cooler with lows around 15. West winds 20 to 25 mph with gusts up to 40 mph. Chance of snow 30 percent. Wind chill values as low as 3 below.
- 30|27°FMostly SunnyHourly details
Day
30°FMostly sunny. Much cooler with highs in the lower 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph becoming southwest 5 to 10 mph in the afternoon. Wind chill values as low as 2 below in the morning.
Night
27°FMostly clear in the evening then becoming mostly cloudy. Not as cool with lows in the mid 20s. Temperature rising into the lower 30s after midnight. South winds 10 to 15 mph with gusts up to 30 mph.
Weekend Weather
- 44|25°FPartly SunnyHourly details
Day
44°FPartly sunny. Not as cool with highs in the upper 40s. South winds 10 to 15 mph becoming west in the afternoon.
Night
25°FPartly cloudy in the evening then becoming mostly clear. Lows in the lower 20s. Northwest winds 5 to 10 mph.
- 35|29°FSunnyHourly details
Day
35°FSunny cooler with highs in the mid 30s.
Night
29°FMostly cloudy. Lows in the mid 20s. Highs in the lower 40s.
- 42|37°FMostly CloudyHourly details
Day
42°FMostly cloudy. Lows in the mid 20s. Highs in the lower 40s.
Night
37°FMostly cloudy. Lows in the upper 30s. Highs in the mid 50s.
- 54|44°FMostly CloudyHourly details
Day
54°FMostly cloudy. Lows in the upper 30s. Highs in the mid 50s.
Night
44°FMostly cloudy. Lows in the upper 30s. Highs in the mid 50s.
- 56|53°FMostly CloudyHourly details
Day
56°FMostly cloudy. Highs in the lower 60s. Lows in the upper 40s.
Night
53°FMostly cloudy. Highs in the lower 60s. Lows in the upper 40s.
- 65|47°FMostly Cloudy
Day
65°FMostly cloudy. Highs in the lower 60s. Lows in the upper 40s.
Night
47°FPartly cloudy. Low temperature around 47F. Dew point will be around 49F with an average humidity of 84%. Winds will be 7 mph from the W.
- 55|44°FMostly Sunny
Day
55°FMostly sunny. High temperature around 55F. Dew point will be around 46F with an average humidity of 78%. Winds will be 4 mph from the SW.
Night
44°FPartly cloudy. Low temperature around 44F. Dew point will be around 43F with an average humidity of 82%. Winds will be 2 mph from the S.
Weekend Weather
- 52|42°FMostly Cloudy
Day
52°FMostly cloudy. High temperature around 52F. Dew point will be around 44F with an average humidity of 80%. Winds will be 1 mph from the S.
Night
42°FCloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 42F. Dew point will be around 40F with an average humidity of 82%. Winds will be 2 mph from the NE.














