Weather Underground: Mantorville, Minnesota, Forecast - Active advisories, if any. Current conditions, forecast, links to weather maps. Weather Underground: Mantorville, MN - Current conditions and a short-range forecast. Mantorville, Minnesota - Official web site of city government. City officials and advisory boards, calendar, selected ordinances online (in Microsoft Word format), guide to local businesses. Too wide for most monitors. Mantorville Area Map - Shows where Mantorville is in relation to Kasson and to Rochester. The Weather Channel - Mantorville, MN - Current conditions, 5-day forecast, detailed forecast, Doppler radar maps. AccuWeather: Mantorville, MN - Current conditions, 15-day weather forecast, wind chill or heat index.