August weather forecastMountain Home, AR
August
Weather in August
August in Mountain Home ushers in a slight slowdown on the heat, with temperatures mildly dropping to 89.8°F (32.1°C) from July's peak. Despite this, August still holds onto the tail end of summer's heat with the anticipation of September's cooler weather. Weather conditions witness less precipitation and slightly lower humidity levels, making the atmosphere more bearable. However, despite the heat and reduced rainfall, August still holds one of the year's longest daylight durations. A marginal increase in wind activity begins to set the stage for the forthcoming change in season.Temperature
Mountain Home experiences a subtle adjustment in high-temperatures to a still hot 89.8°F (32.1°C) with the onset of August, maintaining near parity with July's 90.9°F (32.7°C). Mountain Home undergoes a major shift from daytime highs, averaging a comfortable 66.9°F (19.4°C) during the night in August.Heat index
The heat index for August is evaluated at an extremely hot 107.6°F (42°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
The months with the lowest humidity are July, August and October, with an average relative humidity of 73%.Rainfall
In Mountain Home, in August, it is raining for 14.6 days, with typically 2.52" (64mm) of accumulated precipitation. In Mountain Home, during the entire year, the rain falls for 155.6 days and collects up to 35.75" (908mm) of precipitation.Snowfall
May through October are months without snowfall in Mountain Home, Arkansas.Daylight
In August, the average length of the day is 13h and 30min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:40 am and sunset at 7:38 pm CDT.
Sunshine
In Mountain Home, the average sunshine in August is 10.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mountain Home, AR
- Average high temperature in August: 89.8°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in August: 66.9°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in August
Mountain Home, AR
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Mountain Home, AR
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in August
Mountain Home, AR
- Average humidity in August: 73%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July, August and October (73%).
Average rainfall in August
Mountain Home, AR
- Average rainfall in August: 2.52"
The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in August
Mountain Home, AR
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in August
Mountain Home, AR
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Mountain Home, AR
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Mountain Home, AR
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in August
Mountain Home, AR
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is December (18.6 days).
The months with the least sunshine days are May and July (11.7 days).
Average UV index in August
Mountain Home, AR
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in August
Mountain Home, AR
- Average cloud cover in August: 30
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in August
Mountain Home, AR
- Average visibility in August: 5mi
The months with the highest visibility are February, June, October, November and December (6mi).
The months with the lowest visibility are January, March, April, May, July, August and September (5mi).





