AppAdvice has teamed up with NAO Labs in order to offer you a chance to win one of five promo codes for Weather Drop ($.99) for iPhone and iPod touch.

Weather Drop allows you to discover what the weather is like anywhere in the world with a simple drop of a pin. Just tap the pin icon in the lower right corner of the screen to make the pin appear, and then drag and drop it wherever you like on the map. The app will then check the weather for the location nearest the pin. Of course, you don’t have to drop a pin to check the weather. You can also use your current location, or just type in the name of the city you’re in and Weather Drop will bring up the forecast.

Drop that pin!

Weather Drop displays the current day’s time, temp, weather conditions, wind direction and speed, humidity, and percentage of cloud cover. It also allows you to view a five-day forecast with each day’s high and low temperatures.

If you frequently travel to different locations or just like to know what the weather is like around the world, you can save multiple locations and scroll through them simply by swiping left and right. The app also allows you to switch between different measuring units, change the forecast’s opacity, toggle the map zoom levels, and mix and match 10 different frame and background styles.

To have a chance at winning one of two Weather Drop promo codes, simply hit that blue tweet button near the bottom of this page or retweet this post from your favorite Twitter app before 11:59 PM PDT tonight (October 15). We will then search the Twitterverse for all of the retweets and randomly choose our lucky winners. The winners will be notified via Twitter, so please be sure to follow us so we can send you your promo code via a direct message.

Non-Twitter users and those of you who want to increase your odds of winning can simply leave a relevant comment below before 11:59 PM PDT tonight to have a chance at winning one of the other three promo codes.

Feel free to participate in the giveaway via either or both methods. Only one entry per person per method is allowed, totaling up to two entries per person if using both.