Here's a forecast from team member Voltaire Velacso who is an Environmental Physicist. Voltaire's forecasts will be crucial in guiding the team when they set their summit date. I'm trying to confirm this, but I think Voltaire works for NASA? Hi-tech! :)
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Weather Forecast 18 April 2007
Precipitation: up to 2-3 cm of snow per day prevailing until Saturday.
most precipitation expected around 6pm local time.
Partly cloudy to cloudy until the weekend.
Winds near ABC remain light.
Strongest of up to 20 km/h on Friday and Saturday evening near ABC.
Summit winds of more than 20 - 30km/h starting Friday, will remain until the weekend or early next week.
ABC: steady -8°C to -11°C until the weekend.
Summit: -36°C until the weekend, warming up a bit to -32 to -34°C by next week.
More detailed forecast will follow soon.