Red at morning, sailor take warning Red at night, sailor's delight (this refers to the red sky (not clouds) opposite the sun)

Rainbow in the morning is a warning At night, a delight (look for rainbows opposite the sun)

When leaves show their underside Be sure that rain betide (this works well with Asp and Maple leaves)

Rain before the wind, topsail halyards you must mind Wind before the rain, soon will make plain sail again (rain before wind indicates a gale force storm approaching, wind ahead of rain will die out as rain arrives)

No dew at night, rain by morning No dew at morning, rain by next day (dew indicates a fair tomorrow)

(The Backpacker's Field Manual, A Comprehensive Guide to Mastering Backcountry Sills, by Rick Curtis)