Dear Mingora was hot like Lahore / Sialkot & kalam malam Jabba were also not so cool in day time but at evening quit weather changes.
In kalam we did not faced any rain & river flow was normal, roads till Bahrain is ok and furhter is dirt track but ok for any vehicle with closed windows.
after kalam u should use jeeps for Mahodand & Ushu valley but we saw many cultus, alto, city and a 2012 model Mehran at Mahodand lake.
We did not visited Utror & Gibral valley so don't have any idea for roads for kundol lake.