Weather for Lihue, HI. Overcast 69.6Â° Feels like 69.6Â° High: 79Â° Low: 72Â° Current conditions as of 04/21/17 5:40 AM HST. Humidity: 91% Visibility: 10.0 mi Dewpoint: 67Â° Barometer: 30.06 in Wind: SW Sunrise: 6:12 AM Sunset: 06:59 PM.
The American Concrete Institute recommends a maintained temperature of 70 degrees F for three days or 50 degrees F for five days to gain sufficient strength for a cold pour to perform up to specification.
The American Concrete Institute under ACI 306 defines that concrete will be exposed to cold weather when the following conditions exist: 1  The average daily air temperature is less than 5Â°C (40Â°F) and, 2  The air temperature is not greater than 10Â°C (50Â°F) for more than one-half of any 24 hour period.