August weather forecast
Siloam Springs, AR

The last leg of summer in August sees temperatures in Siloam Springs maintain the heat rhythm, just a notch lower than July. Precipitation fluctuates again, reaching 3.66" (93mm), perhaps nature's reminder of the upcoming transition to a cooler season. The lowering heat is also signaled by a slight drop in the UV Index to 6, making the weather more bearable. Winds dally at a passive speed not influencing the weather much. As summer winds down, long daylight hours still thrive, illuminating the city well into the evening.

Temperature

In August, Siloam Springs experiences a minor shift in meteorological conditions with average high-temperatures marked at a still hot 88.5°F (31.4°C), closely mirroring the climate in July. August nights are marked by an average low-temperature of 68°F (20°C).

Heat index

For August, the heat index is evaluated at a sweltering 102.2°F (39°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

August and October, with an average relative humidity of 71%, are the least humid months.

Rainfall

In August, in Siloam Springs, the rain falls for 15.6 days. Throughout August, 3.66" (93mm) of precipitation is accumulated. Throughout the year, in Siloam Springs, there are 156 rainfall days, and 34.41" (874mm) of precipitation is accumulated.

Snowfall

April, June through October are months without snowfall in Siloam Springs.

Daylight

In August, the average length of the day in Siloam Springs is 13h and 29min.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:23 pm. On the last day of August, in Siloam Springs, sunrise is at 6:49 am and sunset at 7:46 pm CDT.

Sunshine

With an average of 10.7h of sunshine, August has the most sunshine of the year.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.