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™
Miami, FLfew clouds668
Anaheim, CAclear sky603
San Diego, CAfew clouds613
San Francisco, CAscattered clouds532
Sacramento, CAclear sky501
Arlington, TXclear sky251
Atlanta, GAclear sky201
Baltimore, MDfew clouds201
Boston, MAsnow191
Bronx, NYclear sky191
Chicago (AL), ILfew clouds61
Chicago (NL), ILfew clouds61
Cincinnati, OHclear sky41
Cleveland, OHclear sky41
Denver, COclear sky341
Detroit, MIfew clouds101
Houston, TXfew clouds321
Kansas City, MOclear sky171
Los Angeles, CAclear sky601
Milwaukee, WIovercast clouds81
Minneapolis, MNbroken clouds151
Philadelphia, PAclear sky201
Phoenix, AZovercast clouds611
Pittsburgh, PAscattered clouds131
Queens, NYbroken clouds201
Seattle, WAovercast clouds411
St. Louis, MOclear sky131
Tampa, FLfew clouds501
Toronto, ONclear sky141
Washington, DCscattered clouds211
Data last updated: 1769482570
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