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HRF forecast value available for each contest, with detailed data throughout the game.
Detailed weather data and hourly index data for each park.
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 Location | Sky Cover | Temperature (°F) | Home Run Forecast Index™ | |
|---|---|---|---|---|
| Arlington, TX |  clear sky | 71 | 8 | |
| Atlanta, GA |  clear sky | 59 | 8 | |
| Chicago (NL), IL |  broken clouds | 65 | 8 | |
| Houston, TX |  few clouds | 78 | 8 | |
| Kansas City, MO | clear sky | 71 | 8 | |
| Miami, FL |  light rain | 79 | 8 | |
| Cleveland, OH |  scattered clouds | 61 | 6 | |
| St. Louis, MO | clear sky | 65 | 6 | |
| Tampa, FL | clear sky | 71 | 6 | |
| Chicago (AL), IL |  few clouds | 65 | 5 | |
| Detroit, MI | overcast clouds | 59 | 5 | |
| Minneapolis, MN |  broken clouds | 65 | 5 | |
| Phoenix, AZ | few clouds | 71 | 5 | |
| Pittsburgh, PA | overcast clouds | 59 | 5 | |
| Williamsport, PA | clear sky | 57 | 4 | |
| Anaheim, CA | overcast clouds | 60 | 4 | |
| Baltimore, MD | scattered clouds | 59 | 4 | |
| Cincinnati, OH | broken clouds | 58 | 4 | |
| Denver, CO | clear sky | 61 | 4 | |
| Milwaukee, WI | overcast clouds | 64 | 4 | |
| San Diego, CA | overcast clouds | 61 | 4 | |
| Tampa Bay, FL | clear sky | 73 | 4 | |
| Toronto, ON | overcast clouds | 59 | 4 | |
| Washington, DC | scattered clouds | 60 | 4 | |
| Bronx, NY | clear sky | 56 | 3 | |
| Las Vegas, NV | overcast clouds | 59 | 3 | |
| Los Angeles, CA | overcast clouds | 58 | 3 | |
| Philadelphia, PA | few clouds | 56 | 3 | |
| Queens, NY | clear sky | 56 | 3 | |
| Sacramento, CA | clear sky | 53 | 3 | |
| San Francisco, CA | clear sky | 53 | 3 | |
| Boston, MA | overcast clouds | 50 | 1 | |
| Seattle, WA |  scattered clouds | 42 | 1 |
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