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™
Arlington, TXclear sky598
Miami, FLmoderate rain707
Anaheim, CAclear sky745
Houston, TXclear sky575
Los Angeles, CAclear sky724
Phoenix, AZclear sky684
Denver, COovercast clouds523
San Diego, CAclear sky743
San Francisco, CAfew clouds543
Tampa, FLbroken clouds633
Kansas City, MOclear sky502
Milwaukee, WImoderate rain292
Minneapolis, MNsnow282
Sacramento, CAovercast clouds441
Atlanta, GAfew clouds411
Baltimore, MDbroken clouds321
Boston, MAovercast clouds261
Bronx, NYclear sky331
Chicago (AL), ILmoderate rain351
Chicago (NL), ILmoderate rain351
Cincinnati, OHbroken clouds401
Cleveland, OHbroken clouds351
Detroit, MIovercast clouds351
Philadelphia, PAbroken clouds311
Pittsburgh, PAclear sky341
Queens, NYbroken clouds331
Seattle, WAlight rain491
St. Louis, MOovercast clouds471
Toronto, ONovercast clouds321
Washington, DCovercast clouds311
Data last updated: 1765328170
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