Just some more info for you:
How to use the Metro Card on the subway: http://www.mta.info/metrocard/easyuse.htm#sub
Here’s the “D” train pamphlet. http://www.mta.info/nyct/service/pdf/tdcur.pdf
The “D” is an express train in Manhattan and local in the Bronx, and will make 8 stops from 34th Street: 42nd Street- Bryant Park, 47-50th Streets - Rockefeller Center, 7th Avenue, 59th Street - Columbus Circle, 125th Street, 145th Street, 155th Street, and 161st Street - Yankee Stadium. The subway runs every 10 minutes .
When you get off the subway at 161st Street, look for people wearing Yankee tee shirts/caps and just follow them one block to the stadium. (There may even be some Texas Rangers fans.)
New York City weather forecast:
Today: Mostly sunny, with a high near 85. North wind around 9 mph.
Tonight: Partly cloudy, with a low around 65. South wind around 5 mph becoming calm.
Thursday: Sunny, with a high near 85. West wind between 3 and 11 mph.
Thursday Night: A chance of showers, mainly after 2am. Increasing clouds, with a low around 65. South wind between 6 and 8 mph. Chance of precipitation is 40%.
Friday: Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 77. North wind between 5 and 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday: Mostly sunny, with a high near 84.
Saturday Night: Mostly clear, with a low around 63.
Sunday: Mostly sunny, with a high near 83.
Sunday Night: Partly cloudy, with a low around 65.
Monday: Mostly sunny, with a high near 82.
Monday Night: Mostly cloudy, with a low around 67.
Tuesday: Partly sunny, with a high near 83.
I hope all this helps - there will be a quiz in 5 minutes.