Hot to use forecastiopy module to retrieve maximum temperature, minimum temperature and precipitation information for only one day from daily data.

forecastiopy-daily-example2.py

from forecastiopy import *

apikey = 'YOUR_APY_KEY'

Lisbon = [38.7252993, -9.1500364]

# 'units', 'lang' and 'exclude' options are optional but it is nice to ensure that
# the reply comes in correct language and unit. Setting the 'exclude' option
# reduces the reply size. If ou don't need the data, don't ask for it.

fio = ForecastIO.ForecastIO(apikey,
                            units=ForecastIO.ForecastIO.UNITS_SI,
                            lang=ForecastIO.ForecastIO.LANG_ENGLISH,
                            exclude=('hourly','minutely', 'flags', 'alerts'),
                            latitude=Lisbon[0], longitude=Lisbon[1])
 
# check if daily data is present in the reply, just in case...                       
if fio.has_daily() is True:
	daily = FIODaily.FIODaily(fio)
	print 'Day 3'
	# Using this properties you can access values directly.
	# They always follow this partern, for day 3 use 
	# 'day_3_temperatureMax', for day 7 use 'day_7_temperatureMax'
	print 'Max Temperature:', daily.day_3_temperatureMax
	print 'Mix Temperature:', daily.day_3_temperatureMin
	print 'Precipitation Type:', daily.day_3_precipType
	print 'Precipitation Pobability:', daily.day_3_precipProbability
	print 'Precipitation Intensity:', daily.day_3_precipIntensity
else:
	print 'No Daily data'