Want to see the weather for Decatur Illinois 10 days in advance? WeatherYou™ is now offering extended
10-day weather forecast report for Decatur Illinois and virtually any other city around the globe.
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Extended 10-Day Forecast Report
Wednesday Oct 1
Partial cloudiness early, with scattered showers and thunderstorms overnight. Low 64F. Winds SSE at 5 to 10 mph. Chance of rain 50%.
Thursday Oct 2
Thunderstorms likely. A few storms may be severe. High 82F. Winds S at 10 to 20 mph. Chance of rain 80%.
Friday Oct 3
Chance Of Rain
Thunderstorms. A few storms may be severe. Low around 60F. Winds SW at 10 to 20 mph. Chance of rain 100%. Rainfall may reach one inch.
Saturday Oct 4
Showers early with mainly sunny skies later in the day as drier air moves in on gusty breezes. High 62F. Winds WNW at 20 to 30 mph. Chance of rain 80%.
Sunday Oct 5
Partly cloudy early with increasing clouds overnight. Low around 40F. Winds W at 10 to 20 mph.
Monday Oct 6
Mostly cloudy skies early will become partly cloudy later in the day. High 56F. Winds WNW at 15 to 25 mph.
Tuesday Oct 7
A few clouds. Low 38F. Winds W at 5 to 10 mph.
Wednesday Oct 8
Partly to mostly cloudy. High 67F. Winds SW at 10 to 15 mph.
Thursday Oct 9
Chance of a shower or two during the evening, followed by partly cloudy skies late. Low near 45F. Winds WSW at 5 to 10 mph. Chance of rain 40%.
Friday Oct 10
Chance Of Rain
Mostly sunny early then increasing cloudiness later in the day. High 66F. Winds WNW at 10 to 20 mph.
Note that 7-day forecast is normally much more accurate than extended forecast for days 8,9 and 10. Since weather forecasting is based on complex calculations the accuracy of such forecast cannot be assured and you should check back closer to such dates. We make our best effort to provide accurate information in our Decatur Illinois weather report but do not guarantee accuracy of information.