Grantville, GA Weather Forecast
Coweta County, Georgia
The next few hours
A dry overnight, clear
It is 46°, but the wind is taking it down to 45° on exposed skin. The sky is clear. The air is close to calm.
The wind turns to the north around 4 AM. Nothing in the next day and a half is wet enough to move plans for.
Colour and bar height both show how heavy the rain would look on radar. A dotted line means the model has no reading for that hour, which is not the same as no rain.
Hour by hour
Quiet through the next day and a half
Nothing wet is expected over the next day and a half.
The overnight low settles near 39°. Tomorrow tops out near 71°. The humidity goes with it: tomorrow is the more comfortable half of this window, and the safer one for anything outdoors.
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
33–71°F across the weekThe week runs between 33° and 71°, with tomorrow the warmest day of it. The second half leans cooling, and Friday is the coolest day in it. Every day in the outlook stays dry.
About the Grantville forecast
Grantville sits at 33.2371°N, 84.8301°W in Coweta County, Georgia. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Coweta County
- Coordinates
- 33.2371°N, 84.8301°W
- Population
- 3,278 · 2023 estimate
- Land area
- 5.895 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Grantville, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Grantville?
The nearest Doppler radar is KFFC (Atlanta, GA), 18 miles to the ENE. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Grantville its center is about 960 ft above ground. That is about as close as radar coverage gets in the United States: the lowest scan is still near the ground when it reaches Grantville, so low-level rotation and the leading edge of a gust front show up on it. Grantville is closer to its radar than 88% of US cities.
The closest instrument actually measuring the air is KCCO · Newnan/Coweta Cnty on the ASOS/AWOS network, 6.1 miles away. Near enough to be representative on most days, though a summer thunderstorm can soak one and miss the other entirely.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Georgia observing network as of this build.
Forecasts near Grantville
- Hogansville, GA6 mi
- Newnan, GA10 mi
- Senoia, GA17 mi
- Peachtree City, GA18 mi
- LaGrange, GA19 mi
- Tyrone, GA21 mi
- Palmetto, GA23 mi
- Chattahoochee Hills, GA24 mi
Elsewhere in Georgia
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