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September Outlook: Fall may arrive with a cool down

Posted at 7:09 PM, Sep 02, 2020
and last updated 2020-09-02 20:01:47-04

INDIANAPOLIS — We've turned the page on the calendar to September! Soon, we'll turn the page on our seasons too.

Fall officially arrives on Sept. 22. So, will we have fall-like temperatures to go along with the changing seasons? The outlook from the Climate Prediction Center suggests we will!

The outlook favors all of central Indiana experiencing below average temperatures through much of September. Temperatures typically do begin to tumble through the month.

We go from an average high in the lower 80s to the lower 70s by the end of September. The mornings can also get quite chilly with average lows around 50 degrees by the end of the month.

I think our forecast for next week will have a large impact on how the averages play out.

One model keeps us in more of a summertime weather pattern into the middle of the month. The other model is trending cooler and also a little damper by early next week.

Whether a frontal system stays to our northwest or gets a little closer to us will have an influence on our temperature trend.

What about precipitation? We have one more month before we start averaging any snow!

In September, we typically see just over three inches of rain. The outlook from the Climate Prediction Center keeps us sandwiched between below average rainfall to the northwest and above average rainfall to the south.

That means we stand an equal chance of ending up near below or above average for the month. Although we have some rain chances next week, our pattern should trend on the drier side after that.