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, CAscattered clouds8710
Los Angeles, CAovercast clouds8910
San Diego, CAclear sky8910
Miami, FLlight rain818
San Francisco, CAclear sky828
Sacramento, CAclear sky847
Atlanta, GAclear sky646
Denver, COclear sky795
Las Vegas, NVovercast clouds735
Phoenix, AZbroken clouds785
Tampa Bay, FLovercast clouds744
Tampa, FLovercast clouds744
Chicago (NL), ILclear sky582
Kansas City, MOclear sky612
Minneapolis, MNclear sky602
Seattle, WAovercast clouds602
St. Louis, MOclear sky602
Williamsport, PAclear sky521
Arlington, TXclear sky651
Baltimore, MDclear sky561
Boston, MAovercast clouds481
Bronx, NYclear sky521
Chicago (AL), ILfew clouds571
Cincinnati, OHfew clouds561
Cleveland, OHclear sky501
Detroit, MIclear sky541
Houston, TXclear sky721
Milwaukee, WIclear sky581
Philadelphia, PAclear sky531
Pittsburgh, PAclear sky531
Queens, NYclear sky521
Toronto, ONclear sky511
Washington, DCclear sky581
Data last updated: 1792270596
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