Weather in Ottawa, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Ottawa
This Afternoon |
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Temperature: 89°F Wind Speed: 5 mph Wind Direction: WSW Forecast: A chance of showers and thunderstorms. Mostly sunny. High near 89, with temperatures falling to around 87 in the afternoon. Heat index values as high as 98. West southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Tonight |
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Temperature: 70°F Wind Speed: 0 to 5 mph Wind Direction: SSW Forecast: A chance of showers and thunderstorms. Some of the storms could produce heavy rain. Partly cloudy. Low around 70, with temperatures rising to around 72 overnight. Heat index values as high as 96. South southwest wind 0 to 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
Wednesday |
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Temperature: 90°F Wind Speed: 5 to 10 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly sunny, with a high near 90. Heat index values as high as 102. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
Wednesday Night |
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Temperature: 73°F Wind Speed: 5 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Heat index values as high as 100. South southeast wind around 5 mph. Chance of precipitation is 40%. |
Thursday |
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Temperature: 88°F Wind Speed: 5 to 10 mph Wind Direction: SSW Forecast: A chance of showers and thunderstorms before 1pm, then showers and thunderstorms likely. Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph. Chance of precipitation is 60%. |
Thursday Night |
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Temperature: 70°F Wind Speed: 5 mph Wind Direction: WNW Forecast: Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 70. Chance of precipitation is 60%. |
Friday |
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Temperature: 83°F Wind Speed: 5 to 10 mph Wind Direction: NNW Forecast: A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 83. Chance of precipitation is 50%. |
Friday Night |
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Temperature: 68°F Wind Speed: 5 to 10 mph Wind Direction: N Forecast: A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 68. |
Saturday |
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Temperature: 87°F Wind Speed: 5 to 10 mph Wind Direction: N Forecast: Sunny, with a high near 87. |
Saturday Night |
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Temperature: 67°F Wind Speed: 0 to 5 mph Wind Direction: NNW Forecast: Mostly clear, with a low around 67. |
Sunday |
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Temperature: 86°F Wind Speed: 5 mph Wind Direction: NW Forecast: Sunny, with a high near 86. |
Sunday Night |
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Temperature: 64°F Wind Speed: 0 to 5 mph Wind Direction: NNW Forecast: Mostly clear, with a low around 64. |
Monday |
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Temperature: 84°F Wind Speed: 0 to 5 mph Wind Direction: NE Forecast: Sunny, with a high near 84. |
Monday Night |
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Temperature: 65°F Wind Speed: 5 mph Wind Direction: SE Forecast: A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. |