10-Day Weather Forecast - Petersburg, IL

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  • Weekend Weather

  • 53|53°F
    Cloudy
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    Today

    53°F

    Cloudy. Highs in the mid 50s. Southeast winds around 10 mph with gusts up to 25 mph.

    Tonight

    53°F

    Cloudy. A slight chance of showers in the evening then a chance of showers after midnight. Not as cool with lows in the lower 50s. Temperature rising into the upper 50s after midnight. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.

    Hourly details
  • Day

    63°F

    Showers with a chance of thunderstorms in the morning then showers in the afternoon. Not as cool with highs in the upper 60s. Temperature falling into the mid 50s in the afternoon. South winds 5 to 10 mph with gusts up to 25 mph increasing to southwest 15 to 20 mph with gusts up to 35 mph in the afternoon. Chance of rain 90 percent.

    Night

    16°F

    Mostly cloudy. A chance of rain showers in the evening. Breezy and much cooler with lows around 15. West winds 20 to 25 mph with gusts up to 40 mph. Chance of rain 40 percent. Wind chill values as low as 3 below after midnight.

    Hourly details
  • Day

    22°F

    Mostly cloudy in the morning then becoming partly sunny. Blustery and much cooler with highs in the mid 20s. Northwest winds 15 to 25 mph with gusts up to 45 mph. Wind chill values as low as 3 below.

    Night

    13°F

    Mostly clear. Lows 10 to 15. Wind chill values as low as zero.

    Hourly details
  • Day

    29°F

    Partly cloudy. Highs in the lower 30s. Lows in the mid 20s.

    Night

    27°F

    Partly cloudy. Highs in the lower 30s. Lows in the mid 20s.

    Hourly details
  • Day

    35°F

    Mostly cloudy. Highs in the upper 30s. Lows 15 to 20.

    Night

    18°F

    Mostly cloudy. Highs in the upper 30s. Lows 15 to 20.

    Hourly details
  • Day

    23°F

    Mostly sunny. Cooler with highs in the mid 20s.

    Night

    10°F

    Mostly clear in the evening then becoming partly cloudy. Lows around 10 above.

    Hourly details
  • Day

    27°F

    Mostly sunny. Highs in the upper 20s.

    Night

    20°F

    Mostly clear. Low temperature around 20F. Dew point will be around 11F with an average humidity of 63%. Winds will be 5 mph from the S.

  • Weekend Weather

  • Day

    37°F

    Partly cloudy. High temperature around 37F. Dew point will be around 24F with an average humidity of 65%. Winds will be 6 mph from the SW.

    Night

    29°F

    Partly cloudy. Low temperature around 29F. Dew point will be around 22F with an average humidity of 71%. Winds will be 4 mph from the W.

  • Day

    33°F

    Sunny. High temperature around 33F. Dew point will be around 21F with an average humidity of 65%. Winds will be 4 mph from the W.

    Night

    29°F

    Mostly clear. Low temperature around 29F. Dew point will be around 23F with an average humidity of 73%. Winds will be 1 mph from the W.

  • Day

    35°F

    Mostly sunny. High temperature around 35F. Dew point will be around 22F with an average humidity of 64%. Winds will be 2 mph from the W.

    Night

    30°F

    Mostly cloudy. Low temperature around 30F. Dew point will be around 23F with an average humidity of 72%. Winds will be 2 mph from the W.