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™
Phoenix, AZfew clouds9310
Anaheim, CAovercast clouds668
Arlington, TXclear sky768
Houston, TXclear sky748
Los Angeles, CAovercast clouds638
Sacramento, CAclear sky688
San Francisco, CAbroken clouds608
St. Louis, MOclear sky777
Chicago (NL), ILfew clouds666
Miami, FLlight rain756
Mexico City, Mexicolight rain665
Minneapolis, MNclear sky675
San Diego, CAbroken clouds655
Seattle, WAfew clouds785
Atlanta, GAclear sky624
Kansas City, MOclear sky784
Tampa Bay, FLbroken clouds744
Baltimore, MDfew clouds533
Bronx, NYclear sky573
Chicago (AL), ILfew clouds663
Cincinnati, OHbroken clouds583
Cleveland, OHscattered clouds563
Denver, COovercast clouds673
Detroit, MIbroken clouds573
Milwaukee, WIclear sky633
Philadelphia, PAfew clouds543
Pittsburgh, PAovercast clouds513
Queens, NYscattered clouds573
Tampa, FLovercast clouds743
Toronto, ONbroken clouds523
Washington, DCclear sky543
Boston, MAovercast clouds481
Data last updated: 1777856168
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