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™
Tampa, FLfew clouds728
Atlanta, GAscattered clouds626
Miami, FLovercast clouds754
Pittsburgh, PAlight rain523
Sacramento, CAclear sky561
Anaheim, CAclear sky721
Arlington, TXclear sky501
Baltimore, MDovercast clouds451
Boston, MAmoderate rain401
Bronx, NYlight rain401
Chicago (AL), ILsnow331
Chicago (NL), ILlight snow341
Cincinnati, OHovercast clouds411
Cleveland, OHlight rain411
Denver, COclear sky381
Detroit, MIovercast clouds351
Houston, TXclear sky541
Kansas City, MObroken clouds431
Los Angeles, CAclear sky681
Milwaukee, WIclear sky311
Minneapolis, MNovercast clouds201
Philadelphia, PAmoderate rain421
Phoenix, AZclear sky631
Queens, NYmoderate rain411
San Diego, CAfew clouds691
San Francisco, CAbroken clouds571
Seattle, WAbroken clouds501
St. Louis, MOclear sky431
Toronto, ONmoderate rain351
Washington, DCovercast clouds461
Data last updated: 1768089369
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