The Old Farmer’s Almanac has shared its extended weather forecast for August, hinting at thunderstorms covering vast parts of the United States, alongside threats of tropical storms or hurricanes for several coastal and southern regions. This long-term forecast offers broad regional patterns rather than precise daily predictions. The Almanac segments the U.S. into zones and describes if temperatures and precipitation are anticipated to be above or below historical averages.
Accuracy of the Old Farmer’s Almanac
The Old Farmer’s Almanac claims its forecasts are approximately 80 percent accurate, acknowledging that no forecaster can predict the weather perfectly. It asserts the use of solar science, climatology, and meteorology by comparing solar patterns and historical weather conditions with current solar activity for making its long-range predictions.
Regional Weather Overview for August
Northeast
August starts with scattered thunderstorms and warm conditions. From August 7 to 10, heavier rain is anticipated in the north, while the south experiences isolated showers and cooler weather. Sunny weather resumes, with more thunderstorms midmonth. Isolated thunderstorms and mild temperatures are expected from August 19 through the month-end. Predicted August temperature: 67.5 degrees, with precipitation around four inches.
Atlantic Corridor
Scattered thunderstorms kick off the month followed by warm, sunny conditions through August 14. A tropical storm threat looms in southern areas on August 15 and 16, while northern parts remain sunny and warm. The latter half of August trends sunny and warm before cooler weather arrives, with isolated southern thunderstorms. Forecasted August precipitation: 2 inches, approximately 2 inches below average.
Appalachians
Expect isolated thunderstorms and warm conditions from August 1 to 12, followed by sunnier weather from August 13 to 20 as temperatures transition from cool to warmer. Scattered thunderstorms return for month’s end, with mild conditions. Forecasted August temperature: 71 degrees, 1 degree below average, with precipitation around 2.5 inches.
Southeast
The Southeast begins August with scattered thunderstorms, transitioning from warm to cool conditions by August 11. August 12 to 14 may see western isolated thunderstorms and eastern hurricane threats. Showers and cooler weather likely from August 15 to 23, then western thunderstorms and eastern sunshine. Month’s end entails scattered thunderstorms and mild conditions.
Florida
Florida starts August with isolated thunderstorms through August 9. A hurricane threat is noted from August 10 to 12, followed by mild weather through August 24. Finally, expect sunshine in the north and thunderstorms in the south. Predicted August precipitation: 8 inches. North is 2 inches below average, and south is 2 inches above average.
Lower Great Lakes
Expect scattered thunderstorms initially, followed by sunshine as temperatures shift from warm to cooler through August 16. Scattered thunderstorms are forecast from August 17 to 25, turning cool to warm. Heavy rain is anticipated in the east from August 26 to 28 while the west remains sunny, followed by the month ending with scattered thunderstorms and mild conditions.
Ohio Valley
August begins sunny before thunderstorms arrive, with warm conditions through August 9. A sunny, mild spell follows from August 10 to 19, then scattered thunderstorms return from August 20 to 28. Month’s end is sunny and mild. Predicted August temperature: 72.5 degrees, 1.5 degrees below average, with precipitation about 1 inch below average.
Deep South
Scattered thunderstorms start August, with conditions turning from warm to cooler by August 13. The north sees sunshine from August 14 to 21, while the south faces thunderstorms. Scattered thunderstorms are likely in the east from August 22 to 24, with the west facing a tropical storm threat. Thunderstorms give way to sunshine towards month’s end.
Upper Midwest
Anticipate isolated thunderstorms and warm conditions initially, followed by sunshine and warmth from August 8 to 12. From August 13 to 18, expect eastern sunshine and western isolated thunderstorms with warm conditions. A few thunderstorms return from August 19 to 24 before month’s end with sunshine, then showers and cooler weather.
Heartland
Beginning with scattered thunderstorms in the north and sunshine in the south, the heat builds through August 7. Sunny, warm conditions persist from August 8 to 15, followed by thunderstorms during a warm phase from August 16 to 20. Expect isolated thunderstorms later. Predicted August temperature: 73 degrees, 2 degrees below average, with 4.5 inches of precipitation.
Texas-Oklahoma
Initial sunny conditions lead into thunderstorms, with warm northern weather and hot conditions in the south. Heavy thunderstorms are expected from August 10 to 12, followed by sunshine and isolated thunderstorms through August 22. A tropical storm threat is listed for August 23 to 25, before final with thunderstorms and warmth.
High Plains
Sunshine and heat are forecast in the northern High Plains, while the south experiences thunderstorms and cooler weather. A few thunderstorms and cool weather are predicted between August 6 and 10, followed by sunny conditions and isolated thunderstorms from August 11 to 19. Expect scattered thunderstorms and heat from August 20 to 23, ending with sunshine, then thunderstorms and warmth.
Intermountain Region
Sunshine and heat are likely in northern Intermountain areas initially, with southern areas seeing thunderstorms and warmer conditions. Sunny, warm weather persists from August 12 to 15. Northern sunny warmth lasts from August 16 to 22, while southern isolated thunderstorms and heat persist. Expect isolated thunderstorms and warmth from August 23 onwards.
Desert Southwest
Scattered thunderstorms and warm conditions start August. Expect eastern thunderstorms from August 6 to 11, while the west remains sunny. Continued sunny conditions cover August 12 to 23, with warm eastern conditions and hotter western weather. Isolated thunderstorms return from August 24 to 31.
Pacific Northwest
August starts sunny and hot in the Pacific Northwest, with isolated thunderstorms followed by sunny, warm conditions lasting from August 6 to 21. Scattered showers and cooler weather are forecast from August 22 to 25, concluding the month sunny and warm. Predicted August temperature: 69 degrees, 2 degrees above average, with precipitation half an inch below average.
Pacific Southwest
Sunshine is expected throughout August in the Pacific Southwest. Initial hot inland weather, with warmer coastal conditions. From August 10 to 17, isolated sprinkles are possible in the north while the south remains sunny. Sunny and hot weather persists from August 18 to 21, with month’s end bringing hot inland and cooler coastal conditions. Predicted August precipitation: zero inches, considered average.
Alaska
The north and central areas of Alaska begin August with showers and the south sees rainy periods, with cool weather lasting through August 15. Rainy periods in the Panhandle and isolated showers in the east and west are expected from August 16 to 21. Forecasted conditions from August 22 to 31 include rain and snow showers in the north, sunny conditions in central Alaska, and rain periods in the south.
Hawaii
Hawaii’s August forecast includes scattered eastern and western showers, with sunshine in central areas and hot conditions through August 16. From August 17 to 31, expect showers with more isolated activity in central and western areas, while temperatures stay warm. Predicted August precipitation: 0.2 inches, 0.4 inches below average, with a temperature of 80.5 degrees, 1 below average.