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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HRF forecast value available for each contest, with detailed data throughout the 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, FLlight rain735
Tampa Bay, FLovercast clouds685
Anaheim, CAovercast clouds594
Tampa, FLovercast clouds674
Baltimore, MDovercast clouds543
Bronx, NYovercast clouds583
Los Angeles, CAovercast clouds573
Philadelphia, PAovercast clouds563
Phoenix, AZbroken clouds643
Queens, NYovercast clouds543
Sacramento, CAovercast clouds563
San Diego, CAovercast clouds633
Washington, DCovercast clouds553
Houston, TXheavy intensity rain542
Arlington, TXbroken clouds431
Atlanta, GAovercast clouds501
Boston, MAovercast clouds491
Chicago (AL), ILclear sky361
Chicago (NL), ILclear sky371
Cincinnati, OHbroken clouds401
Cleveland, OHovercast clouds441
Denver, COovercast clouds401
Detroit, MIbroken clouds391
Kansas City, MOclear sky401
Milwaukee, WIclear sky351
Minneapolis, MNlight snow341
Pittsburgh, PAovercast clouds441
San Francisco, CAovercast clouds511
Seattle, WAbroken clouds461
St. Louis, MOclear sky401
Toronto, ONovercast clouds431
Data last updated: 1776596170
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