The Collaborative International Dictionary of English v.0.48:

Weather \Weath"er\, v. t. [imp. & p. p. Weathered; p. pr. &
   vb. n. Weathering.]
   [1913 Webster]
   1. To expose to the air; to air; to season by exposure to
      air.
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            [An eagle] soaring through his wide empire of the
            air
            To weather his broad sails.           --Spenser.
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            This gear lacks weathering.           --Latimer.
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   2. Hence, to sustain the trying effect of; to bear up against
      and overcome; to sustain; to endure; to resist; as, to
      weather the storm.
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            For I can weather the roughest gale.  --Longfellow.
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            You will weather the difficulties yet. --F. W.
                                                  Robertson.
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   3. (Naut.) To sail or pass to the windward of; as, to weather
      a cape; to weather another ship.
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   4. (Falconry) To place (a hawk) unhooded in the open air.
      --Encyc. Brit.
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   To weather a point.
      (a) (Naut.) To pass a point of land, leaving it on the lee
          side.
      (b) Hence, to gain or accomplish anything against
          opposition.

   To weather out, to encounter successfully, though with
      difficulty; as, to weather out a storm.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Weathered \Weath"ered\, a.
   1. (Arch.) Made sloping, so as to throw off water; as, a
      weathered cornice or window sill.
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   2. (Geol.) Having the surface altered in color, texture, or
      composition, or the edges rounded off by exposure to the
      elements.
      [1913 Webster]

WordNet (r) 3.0 (2006):

weathered
    adj 1: worn by exposure to the weather; "a house of weathered
           shingles" [syn: weather-beaten, weatherworn,
           weathered]