Do certain weather conditions lead to more home runs?

Yes! Weather conditions can change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple way to see the if weather will help or hinder baseball flight during a game. The Home Run Forecast Index demonstrates a strong correlation with the number of HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand HRFI forecast data by team and for each game.

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Current Weather Conditions and HRF Index

The table below shows the Home Run Forecast Index (HRFI) value for each big league ballpark. The HRFI ranges from 1 to 10, with 10 indicating the most favorable weather conditions for ball fight and 1 indicating least favorable. Learn more about how we calculate this index here.

This data is updated hourly at the top of the hour. For ballparks with a retractable roof, the index is calculated for open roof conditions. Check local sources for roof status. For ballparks with a permanent roof, the index is calculated for indoor conditions.

Ballpark LocationSky CoverTemperature (°F)Home Run Forecast Index™
Cleveland, OHbroken clouds719
Toronto, ONfew clouds678
Queens, NYbroken clouds627
Tampa, FLclear sky717
Washington, DCbroken clouds607
Baltimore, MDclear sky586
Philadelphia, PAbroken clouds586
Bronx, NYclear sky625
Chicago (AL), ILmoderate rain505
Cincinnati, OHmoderate rain615
Detroit, MImoderate rain645
Miami, FLclear sky795
Seattle, WAmoderate rain515
Atlanta, GAovercast clouds614
Boston, MAbroken clouds534
Houston, TXclear sky744
Phoenix, AZclear sky644
Pittsburgh, PAclear sky674
San Francisco, CAfew clouds574
Sacramento, CAclear sky553
Anaheim, CAclear sky613
Arlington, TXclear sky593
Los Angeles, CAclear sky633
Milwaukee, WImoderate rain483
San Diego, CAfew clouds583
Chicago (NL), ILlight rain511
Denver, COclear sky391
Kansas City, MOclear sky471
Minneapolis, MNclear sky421
St. Louis, MObroken clouds501
Data last updated: 1760878568
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