Index: django/newforms/extras/widgets.py
===================================================================
--- django/newforms/extras/widgets.py	(revision 7049)
+++ django/newforms/extras/widgets.py	(working copy)
@@ -39,21 +39,33 @@
 
         output = []
 
+        if 'id' in self.attrs:
+            id_ = self.attrs['id']
+        else:
+            id_ = 'id_%s' % name
+
         month_choices = MONTHS.items()
         month_choices.sort()
-        select_html = Select(choices=month_choices).render(self.month_field % name, month_val)
+        local_attrs = self.build_attrs(id=self.month_field % id_)
+        select_html = Select(choices=month_choices).render(self.month_field % name, month_val, local_attrs)
         output.append(select_html)
 
         day_choices = [(i, i) for i in range(1, 32)]
-        select_html = Select(choices=day_choices).render(self.day_field % name, day_val)
+        local_attrs['id'] = self.day_field % id_
+        select_html = Select(choices=day_choices).render(self.day_field % name, day_val, local_attrs)
         output.append(select_html)
 
         year_choices = [(i, i) for i in self.years]
-        select_html = Select(choices=year_choices).render(self.year_field % name, year_val)
+        local_attrs['id'] = self.year_field % id_
+        select_html = Select(choices=year_choices).render(self.year_field % name, year_val, local_attrs)
         output.append(select_html)
 
         return mark_safe(u'\n'.join(output))
 
+    def id_for_label(self, id_):
+        return '%s_month' % id_
+    id_for_label = classmethod(id_for_label)
+
     def value_from_datadict(self, data, files, name):
         y, m, d = data.get(self.year_field % name), data.get(self.month_field % name), data.get(self.day_field % name)
         if y and m and d:
Index: tests/regressiontests/forms/extra.py
===================================================================
--- tests/regressiontests/forms/extra.py	(revision 7049)
+++ tests/regressiontests/forms/extra.py	(working copy)
@@ -22,7 +22,7 @@
 >>> from django.newforms.extras import SelectDateWidget
 >>> w = SelectDateWidget(years=('2007','2008','2009','2010','2011','2012','2013','2014','2015','2016'))
 >>> print w.render('mydate', '')
-<select name="mydate_month">
+<select name="mydate_month" id="id_mydate_month">
 <option value="1">January</option>
 <option value="2">February</option>
 <option value="3">March</option>
@@ -36,7 +36,7 @@
 <option value="11">November</option>
 <option value="12">December</option>
 </select>
-<select name="mydate_day">
+<select name="mydate_day" id="id_mydate_day">
 <option value="1">1</option>
 <option value="2">2</option>
 <option value="3">3</option>
@@ -69,7 +69,7 @@
 <option value="30">30</option>
 <option value="31">31</option>
 </select>
-<select name="mydate_year">
+<select name="mydate_year" id="id_mydate_year">
 <option value="2007">2007</option>
 <option value="2008">2008</option>
 <option value="2009">2009</option>
@@ -84,7 +84,7 @@
 >>> w.render('mydate', None) == w.render('mydate', '')
 True
 >>> print w.render('mydate', '2010-04-15')
-<select name="mydate_month">
+<select name="mydate_month" id="id_mydate_month">
 <option value="1">January</option>
 <option value="2">February</option>
 <option value="3">March</option>
@@ -98,7 +98,7 @@
 <option value="11">November</option>
 <option value="12">December</option>
 </select>
-<select name="mydate_day">
+<select name="mydate_day" id="id_mydate_day">
 <option value="1">1</option>
 <option value="2">2</option>
 <option value="3">3</option>
@@ -131,7 +131,7 @@
 <option value="30">30</option>
 <option value="31">31</option>
 </select>
-<select name="mydate_year">
+<select name="mydate_year" id="id_mydate_year">
 <option value="2007">2007</option>
 <option value="2008">2008</option>
 <option value="2009">2009</option>