Weather in Harrisburg, Illinois, United States

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7-Day Detailed Weather Forecast for Harrisburg

Today

Temperature: 80°F

Wind Speed: 7 to 14 mph

Wind Direction: WNW

Forecast: A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms between 10am and noon, then a chance of showers and thunderstorms between noon and 1pm, then a chance of showers and thunderstorms between 1pm and 3pm. Partly sunny. High near 80, with temperatures falling to around 78 in the afternoon. West northwest wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Tonight

Temperature: 57°F

Wind Speed: 1 to 12 mph

Wind Direction: NNW

Forecast: Mostly clear, with a low around 57. North northwest wind 1 to 12 mph, with gusts as high as 18 mph.

Monday

Temperature: 77°F

Wind Speed: 0 to 3 mph

Wind Direction: NNW

Forecast: Mostly sunny, with a high near 77. North northwest wind 0 to 3 mph.

Monday Night

Temperature: 56°F

Wind Speed: 1 mph

Wind Direction: NNW

Forecast: Mostly clear, with a low around 56. North northwest wind around 1 mph.

Tuesday

Temperature: 82°F

Wind Speed: 1 to 9 mph

Wind Direction: SW

Forecast: Sunny, with a high near 82. Southwest wind 1 to 9 mph.

Tuesday Night

Temperature: 63°F

Wind Speed: 1 to 9 mph

Wind Direction: SW

Forecast: A chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 63. Southwest wind 1 to 9 mph. Chance of precipitation is 30%.

Wednesday

Temperature: 86°F

Wind Speed: 1 to 21 mph

Wind Direction: SSW

Forecast: A slight chance of rain showers before 7am. Mostly sunny, with a high near 86. South southwest wind 1 to 21 mph, with gusts as high as 32 mph.

Wednesday Night

Temperature: 73°F

Wind Speed: 17 to 21 mph

Wind Direction: SSW

Forecast: A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 73. South southwest wind 17 to 21 mph, with gusts as high as 32 mph.

Thursday

Temperature: 85°F

Wind Speed: 8 to 17 mph

Wind Direction: SW

Forecast: Showers and thunderstorms likely. Partly sunny, with a high near 85. Southwest wind 8 to 17 mph, with gusts as high as 26 mph.

Thursday Night

Temperature: 64°F

Wind Speed: 0 to 7 mph

Wind Direction: WNW

Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 64. West northwest wind 0 to 7 mph.

Juneteenth

Temperature: 82°F

Wind Speed: 1 to 5 mph

Wind Direction: NNW

Forecast: A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82. North northwest wind 1 to 5 mph.

Friday Night

Temperature: 63°F

Wind Speed: 0 to 3 mph

Wind Direction: NW

Forecast: Partly cloudy, with a low around 63. Northwest wind 0 to 3 mph.

Saturday

Temperature: 85°F

Wind Speed: 0 to 5 mph

Wind Direction: SSW

Forecast: Mostly sunny, with a high near 85. South southwest wind 0 to 5 mph.

Saturday Night

Temperature: 67°F

Wind Speed: 3 mph

Wind Direction: SE

Forecast: A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Southeast wind around 3 mph.