Currently: 47 °F. Overcast. (Weather station: Fulton County Airport-Brown Field, USA). See more current weatherAnnual Weather Averages in Fulton County Airport-Brown Field
Fulton County Airport-Brown Field is 31 miles from McDonough, so the actual climate in McDonough can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in McDonough
High Temp: 90 °F
Low Temp: 33 °F
Mean Temp: 62 °F
Precipitation: 4.01"
Humidity: 68%
Dew Point: 51 °F
Wind: 8 mph
Pressure: 30.07 "Hg
Visibility: 9 mi
January Climate & Weather Averages in McDonough
High Temp: 54 °F
Low Temp: 33 °F
Mean Temp: 44 °F
Precipitation: 4.21"
Humidity: 66%
Dew Point: 32 °F
Wind: 9 mph
Pressure: 30.15 "Hg
Visibility: 9 mi
February Climate & Weather Averages in McDonough
High Temp: 58 °F
Low Temp: 36 °F
Mean Temp: 47 °F
Precipitation: 4.59"
Humidity: 65%
Dew Point: 35 °F
Wind: 10 mph
Pressure: 30.11 "Hg
Visibility: 9 mi
March Climate & Weather Averages in McDonough
High Temp: 66 °F
Low Temp: 43 °F
Mean Temp: 54 °F
Precipitation: 4.42"
Humidity: 62%
Dew Point: 40 °F
Wind: 10 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
April Climate & Weather Averages in McDonough
High Temp: 74 °F
Low Temp: 49 °F
Mean Temp: 62 °F
Precipitation: 3.67"
Humidity: 63%
Dew Point: 48 °F
Wind: 9 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
May Climate & Weather Averages in McDonough
High Temp: 81 °F
Low Temp: 59 °F
Mean Temp: 70 °F
Precipitation: 3.62"
Humidity: 67%
Dew Point: 58 °F
Wind: 7 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
June Climate & Weather Averages in McDonough
High Temp: 87 °F
Low Temp: 67 °F
Mean Temp: 77 °F
Precipitation: 3.84"
Humidity: 70%
Dew Point: 66 °F
Wind: 6 mph
Pressure: 30.00 "Hg
Visibility: 9 mi
July Climate & Weather Averages in McDonough
High Temp: 90 °F
Low Temp: 70 °F
Mean Temp: 80 °F
Precipitation: 4.82"
Humidity: 70%
Dew Point: 69 °F
Wind: 6 mph
Pressure: 30.02 "Hg
Visibility: 8 mi
August Climate & Weather Averages in McDonough
High Temp: 89 °F
Low Temp: 70 °F
Mean Temp: 79 °F
Precipitation: 3.97"
Humidity: 71%
Dew Point: 68 °F
Wind: 5 mph
Pressure: 30.01 "Hg
Visibility: 8 mi
September Climate & Weather Averages in McDonough
High Temp: 84 °F
Low Temp: 63 °F
Mean Temp: 74 °F
Precipitation: 3.52"
Humidity: 71%
Dew Point: 63 °F
Wind: 6 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
October Climate & Weather Averages in McDonough
High Temp: 75 °F
Low Temp: 52 °F
Mean Temp: 63 °F
Precipitation: 3.35"
Humidity: 71%
Dew Point: 53 °F
Wind: 7 mph
Pressure: 30.07 "Hg
Visibility: 9 mi
November Climate & Weather Averages in McDonough
High Temp: 64 °F
Low Temp: 40 °F
Mean Temp: 52 °F
Precipitation: 3.80"
Humidity: 67%
Dew Point: 41 °F
Wind: 7 mph
Pressure: 30.15 "Hg
Visibility: 9 mi
December Climate & Weather Averages in McDonough
High Temp: 56 °F
Low Temp: 36 °F
Mean Temp: 46 °F
Precipitation: 4.32"
Humidity: 69%
Dew Point: 36 °F
Wind: 8 mph
Pressure: 30.15 "Hg
Visibility: 9 mi