Moving Planters indoors for Winter: Python Redux

#!/usr/bin/python
import xml.etree.ElementTree as ET
import httplib
import smtplib
from email.mime.text import MIMEText

conn = httplib.HTTPConnection('www.wrh.noaa.gov')
conn.request('GET','/forecast/xml/xml.php?duration=168&interval=6&lat=40.69651&lon=-112.091784')
response = conn.getresponse()

forecast_xml = ET.parse(response)
low_temp = 100
for child in forecast_xml.getiterator():
    if child.tag == 'temperature':
        temp = int(child.text)
        low_temp = temp if temp < low_temp else low_temp

if low_temp < 40:
    msg = MIMEText('Temps as low as %s coming up' % low_temp)
    msg['Subject'] = 'Cold Weather'
    msg['From'] = from_addr = 'username@gmail.com'
    msg['To'] = to_addr = '000000000@messaging.sprintpcs.com'

    s = smtplib.SMTP('smtp.gmail.com', 587)
    s.starttls()
    s.login('username','password')
    s.sendmail(from_addr, to_addr, msg.as_string())
    s.quit()