10-Day Weather Forecast - Petersburg, IL
- |19°FPartly CloudyHourly details
Tonight
19°FPartly cloudy. Low temperature around 19F. Dew point will be around 9F with an average humidity of 56%. Winds will be 5 mph from the S.
- 48|30°FMostly CloudyHourly details
Day
48°FMostly cloudy and breezy. Not as cool with highs in the lower 50s. South winds 15 to 25 mph with gusts up to 35 mph.
Night
30°FMostly cloudy. Not as cool with lows in the upper 20s. West winds 10 to 15 mph becoming northwest 5 to 10 mph after midnight.
- 45|29°FMostly SunnyHourly details
Day
45°FMostly sunny. Highs in the mid 40s. Northwest winds 5 to 10 mph.
Night
29°FRain and snow likely. Light snow accumulation possible. Lows in the upper 20s. Northeast winds 5 to 10 mph. Chance of precipitation 70 percent.
- 45|30°FMostly SunnyHourly details
Day
45°FMostly sunny. Highs in the mid 40s. Northeast winds 5 to 10 mph becoming northwest in the afternoon.
Night
30°FMostly clear. Lows in the upper 20s. Highs in the lower 60s.
- 62|37°FMostly SunnyHourly details
Day
62°FMostly clear. Lows in the upper 20s. Highs in the lower 60s.
Night
37°FMostly clear. Lows in the mid 30s.
Weekend Weather
- 58|26°FPartly CloudyHourly details
Day
58°FPartly cloudy. Highs in the mid 50s. Lows in the mid 20s.
Night
26°FPartly cloudy. Highs in the mid 50s. Lows in the mid 20s.
- 39|26°F30% Chance Frozen MixHourly details
Day
39°FPartly sunny. A chance of rain and snow in the afternoon. Much cooler with highs around 40. Chance of precipitation 30 percent.
Night
26°FMostly cloudy with a 50 percent chance of snow. Lows in the mid 20s.
- 36|19°F30% Chance of Snow
Day
36°FA chance of snow in the morning. Partly sunny with a chance of rain. Highs in the lower 40s. Chance of precipitation 30 percent.
Night
19°FPartly cloudy with a slight chance of rain-snow mix. Chance of precipitation 30%. Low temperature around 19F. Dew point will be around 23F with an average humidity of 78%. Winds will be 6 mph from the E.
- 39|26°F40% Chance Frozen Mix
Day
39°FSunny with a chance of rain-snow mix. Chance of precipitation 40%. High temperature around 39F. Dew point will be around 21F with an average humidity of 66%. Winds will be 4 mph from the SE.
Night
26°FMostly clear with a chance of rain-snow mix. Chance of precipitation 35%. Low temperature around 26F. Dew point will be around 23F with an average humidity of 76%. Winds will be 3 mph from the S.
- 45|37°FMostly Sunny
Day
45°FMostly sunny. High temperature around 45F. Dew point will be around 30F with an average humidity of 69%. Winds will be 5 mph from the S.
Night
37°FPartly cloudy. Low temperature around 37F. Dew point will be around 33F with an average humidity of 77%. Winds will be 7 mph from the S.
- 57|49°FCloudy
Day
57°FCloudy. High temperature around 57F. Dew point will be around 41F with an average humidity of 70%. Winds will be 11 mph from the S.
Night
49°FMostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 49F. Dew point will be around 46F with an average humidity of 79%. Winds will be 12 mph from the S.













