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™
Houston, TXscattered clouds8610
Tampa, FLclear sky859
Anaheim, CAclear sky728
Arlington, TXclear sky848
Atlanta, GAclear sky798
Kansas City, MOclear sky808
Los Angeles, CAclear sky708
Phoenix, AZclear sky778
Miami, FLbroken clouds837
St. Louis, MOclear sky817
Denver, COscattered clouds675
San Francisco, CAscattered clouds645
Sacramento, CAclear sky614
Chicago (NL), ILscattered clouds664
Cincinnati, OHclear sky684
Detroit, MIclear sky624
Minneapolis, MNbroken clouds604
Pittsburgh, PAclear sky624
San Diego, CAclear sky714
Seattle, WAclear sky554
Baltimore, MDclear sky633
Boston, MAbroken clouds543
Bronx, NYclear sky603
Chicago (AL), ILscattered clouds663
Cleveland, OHclear sky603
Milwaukee, WIovercast clouds633
Philadelphia, PAclear sky623
Queens, NYclear sky603
Toronto, ONfew clouds583
Washington, DCclear sky653
Data last updated: 1760640967
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