Weather Forecast Accuracy Last Month (October)

Weather Forecast Accuracy Last Year (2020)

Weather Changeability for Mount Vernon, Illinois

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

5.4°

Last Year:

6.0°

Average change in low temperature day-to-day

Last Month:

9.3°

Last Year:

7.3°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

50%

Last Year:

47%

Chance of precip day after a dry day

Last Month:

17%

Last Year:

26%

ForecastAdvisor Fact

On average, Foreca/Vaisala's low temperature forecasts for Mount Vernon were off by 3.29 degrees last month.

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