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™
Anaheim, CAclear sky658
Houston, TXbroken clouds728
Arlington, TXclear sky707
San Francisco, CAscattered clouds607
Los Angeles, CAclear sky616
Miami, FLfew clouds695
Phoenix, AZbroken clouds775
Tampa, FLclear sky655
Sacramento, CAclear sky634
Atlanta, GAbroken clouds523
Denver, CObroken clouds533
Kansas City, MOclear sky523
San Diego, CAbroken clouds613
Seattle, WAscattered clouds512
Baltimore, MDbroken clouds331
Boston, MAclear sky281
Bronx, NYfew clouds311
Chicago (AL), ILfew clouds321
Chicago (NL), ILclear sky321
Cincinnati, OHfew clouds341
Cleveland, OHscattered clouds221
Detroit, MIovercast clouds231
Milwaukee, WIovercast clouds301
Minneapolis, MNfew clouds361
Philadelphia, PAbroken clouds331
Pittsburgh, PAovercast clouds281
Queens, NYfew clouds321
St. Louis, MObroken clouds481
Toronto, ONbroken clouds221
Washington, DCbroken clouds331
Data last updated: 1770944168
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