Here is my script that gets a 5 day forcast using the Yahoo RSS feed.

Converted to load to my ADI Leopard touch screen using the Ocelot plugin.

Code:
--Script to grab 5 day forecast
--using Yahoo RSS weather feed

function Getforcast()
FC = luacom.CreateObject("Msxml2.DOMDocument")
FC.async = 0
FC:load ("http://xml.weather.yahoo.com/forecastrss/93720_f.xml")

if FC.parseError.errorcode ~=0 then
print(FC.parseError.reason)
end
  
weather = {}
weather["day"] = {d,dt,hi,lo,cond,code}

node = FC:SelectSingleNode("//item/yweather:forecast")

for i = 1, 5 do
weather.day[i] = {d,dt,hi,lo,cond,code}
weather.day[i].d = node.Attributes:getNamedItem("day").nodevalue
weather.day[i].dt = node.Attributes:getNamedItem("date").nodevalue
weather.day[i].hi = node.Attributes:getNamedItem("high").nodevalue
weather.day[i].lo = node.Attributes:getNamedItem("low").nodevalue
weather.day[i].cond = node.Attributes:getNamedItem("text").nodevalue
weather.day[i].code = node.Attributes:getNamedItem("code").nodevalue
 		if weather.day[i].hi == "N/A" then weather.day[i].hi = 0 end
node=node.nextSibling
end

--Icon conversions to use with ADI Leopard touch screen
for n = 1, 5 do
--Sunny
if weather.day[n].code=="31" then weather.day[n].code=31 end
if weather.day[n].code=="32" then weather.day[n].code=31 end
if weather.day[n].code=="36" then weather.day[n].code=31 end
if weather.day[n].code=="44" then weather.day[n].code=31 end
--Partial Sun
if weather.day[n].code=="23" then weather.day[n].code=32 end
if weather.day[n].code=="24" then weather.day[n].code=32 end
if weather.day[n].code=="29" then weather.day[n].code=32 end
if weather.day[n].code=="30" then weather.day[n].code=32 end
--Scattered Showers
if weather.day[n].code=="39" then weather.day[n].code=33 end
if weather.day[n].code=="41" then weather.day[n].code=33 end
if weather.day[n].code=="45" then weather.day[n].code=33 end
if weather.day[n].code=="48" then weather.day[n].code=33 end
--Cloudy
if weather.day[n].code=="26" then weather.day[n].code=34 end
if weather.day[n].code=="27" then weather.day[n].code=34 end
if weather.day[n].code=="28" then weather.day[n].code=34 end
--Showers
if weather.day[n].code=="11" then weather.day[n].code=35 end
if weather.day[n].code=="12" then weather.day[n].code=35 end
if weather.day[n].code=="40" then weather.day[n].code=35 end
--Hail/Ice    
if weather.day[n].code=="5" then weather.day[n].code=36 end
if weather.day[n].code=="6" then weather.day[n].code=36 end
if weather.day[n].code=="7" then weather.day[n].code=36 end
if weather.day[n].code=="8" then weather.day[n].code=36 end
if weather.day[n].code=="9" then weather.day[n].code=36 end
if weather.day[n].code=="10" then weather.day[n].code=36 end
if weather.day[n].code=="13" then weather.day[n].code=36 end
if weather.day[n].code=="14" then weather.day[n].code=36 end
if weather.day[n].code=="15" then weather.day[n].code=36 end
if weather.day[n].code=="16" then weather.day[n].code=36 end
if weather.day[n].code=="18" then weather.day[n].code=36 end
if weather.day[n].code=="25" then weather.day[n].code=36 end
if weather.day[n].code=="42" then weather.day[n].code=36 end
if weather.day[n].code=="43" then weather.day[n].code=36 end
if weather.day[n].code=="46" then weather.day[n].code=36 end
--Thunderstorms
if weather.day[n].code=="0" then weather.day[n].code=37 end
if weather.day[n].code=="1" then weather.day[n].code=37 end
if weather.day[n].code=="2" then weather.day[n].code=37 end
if weather.day[n].code=="3" then weather.day[n].code=37 end
if weather.day[n].code=="4" then weather.day[n].code=37 end
if weather.day[n].code=="17" then weather.day[n].code=37 end
if weather.day[n].code=="35" then weather.day[n].code=37 end
if weather.day[n].code=="37" then weather.day[n].code=37 end
if weather.day[n].code=="38" then weather.day[n].code=37 end
if weather.day[n].code=="47" then weather.day[n].code=37 end
--Foggy
if weather.day[n].code=="20" then weather.day[n].code=38 end
--Hazy
if weather.day[n].code=="19" then weather.day[n].code=39 end
if weather.day[n].code=="21" then weather.day[n].code=39 end
if weather.day[n].code=="22" then weather.day[n].code=39 end
if weather.day[n].code=="33" then weather.day[n].code=39 end
if weather.day[n].code=="34" then weather.day[n].code=39 end
end

--print results to check in Lua Console
for i = 1, 5 do
print ("----DAY ..i..-------------------------------")
print (weather.day[i].d.." "..weather.day[i].dt)
print ("----Conditions----")
print ("conditions = "..weather.day[i].cond)
print ("high "..weather.day[i].hi)
print ("low "..weather.day[i].lo)
print ("icon "..weather.day[i].code)
end

--Send data to ADI Leopard Touch Screen
if os.date("%H")<"12" then Ocelot:SetVar(50, weather.day[1].hi) end
Ocelot:SetVariable(52, weather.day[2].hi)
Ocelot:SetVariable(54, weather.day[3].hi)
Ocelot:SetVariable(56, weather.day[4].hi)
Ocelot:SetVariable(58, weather.day[5].hi)
Ocelot:SetVariable(51, weather.day[1].lo)
Ocelot:SetVariable(53, weather.day[2].lo)
Ocelot:SetVariable(55, weather.day[3].lo)
Ocelot:SetVariable(57, weather.day[4].lo)
Ocelot:SetVariable(59, weather.day[5].lo)
Ocelot:SetVariable(36, weather.day[2].code)
Ocelot:SetVariable(37, weather.day[3].code)
Ocelot:SetVariable(38, weather.day[4].code)
Ocelot:SetVariable(39, weather.day[5].code)
end

Getforcast()
collectgarbage ()
Just add your 5 digit zipcode for your area!