Weather for Red Haw Lake, IA - Red Haw Lake, IA Weather, Current Weather in Red Haw Lake, IA. Local weather report for Red Haw Lake, IA, Local Red Haw Lake, IA weather. Forecast for Red Haw Lake, Iowa, Red Haw Lake, IA weather forecast. Find your local Red Haw Lake weather forecast. Red Haw Lake, IA weather conditions.