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Improved Weather for Two Days Before Rain and Thunderstorms Return Thursday

Improved Weather for Two Days Before Rain and Thunderstorms Return Thursday

Weather conditions are set to improve briefly, with clearer skies and reduced humidity expected on August 18, 2026. Temperatures will remain warm, with highs reaching 87°F (30.5°C) in Baltimore, MD. However, spotty showers and thunderstorms may develop in the afternoon near the Bay and beaches. A cold front is forecast to arrive on Thursday, bringing a higher likelihood of rain and thunderstorms that could persist through Saturday. Daylight hours are also shortening, with a loss of 2 minutes and 18 seconds compared to the previous day. This seasonal shift is contributing to cooler air masses interacting with warmer southern air, increasing the potential for unsettled weather later in the week.
The Knoxville News-Sentinel The Knoxville News-Sentinel
Knoxville heat wave to ease as storms roll in. Here's what to expect

Knoxville heat wave to ease as storms roll in. Here's what to expect

It has consistently been over 90 degrees the past few days, storms could help break up some heat. Plus, highest and lowest temps recorded by NWS.
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Humid Conditions with Scattered Thunderstorms Expected Today

Humid Conditions with Scattered Thunderstorms Expected Today

Scattered thunderstorms are forecast for this afternoon as humidity levels rise across the region (WBAY, 2026). Early morning showers will clear, allowing for some sunshine before clouds return later in the day. Temperatures are expected to reach a high of 80°F (27°C), contributing to the muggy conditions. Tonight, conditions will improve with decreasing clouds and less humidity after midnight. Overnight lows will drop to 55°F (13°C), with cooler temperatures in the Northwoods, potentially reaching the 40s°F (4-9°C).
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Summer Heat Persists with Storms Expected Mid-Week in Memphis

Summer Heat Persists with Storms Expected Mid-Week in Memphis

The Memphis area continues to experience summer heat, with highs ranging from the lower 90s (32-34°C) in the north and east to the upper 90s (36-37°C) in the south and west. A slight drop in humidity on Tuesday offers minor relief, but 'feels like' temperatures could still reach 105°F (40.5°C) in some areas. By Wednesday, southerly winds will bring increased moisture, pushing heat index values above 105°F (40.5°C) again. A cold front is expected to arrive later in the week, bringing a chance of showers and thunderstorms.
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Quiet Weather Expected Through Mid-Week in Virginia

Quiet Weather Expected Through Mid-Week in Virginia

The weather across Virginia is expected to remain calm through mid-week, with a mix of sun and clouds and slightly drier air moving in due to high pressure to the north (WDBJ7, 2026). Highs on Tuesday, August 18, 2026, are forecasted to reach well into the 80s (26-31°C), with a chance of spotty showers in the afternoon. By Wednesday, August 19, 2026, humidity levels are expected to drop, providing more comfortable conditions with seasonable temperatures and sunshine. However, this reprieve will be short-lived as higher humidity and the potential for showers and storms return later in the week. The Atlantic Basin remains quiet, with no tropical activity expected due to a strengthening El Niño.
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Understanding Fall Weather Patterns Across the United States

Understanding Fall Weather Patterns Across the United States

Learn about the diverse fall weather patterns across the U.S., including temperature and precipitation trends, as predicted by the Old Farmer's Almanac.
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Warmer Weather Expected in Boston with Isolated Showers Possible

Warmer Weather Expected in Boston with Isolated Showers Possible

The Boston area is set to experience warmer weather on Wednesday, with partly cloudy skies and a high of 86°F (30°C) [WCVB, 2026-08-18]. Showers are possible on Thursday, particularly in southern areas, with a high of 81°F (27°C). Friday will bring drier conditions, though temperatures along the coast will remain in the 70s°F (21-26°C). The weekend is expected to see a return of shower chances, with Sunday being cooler and cloudy, reaching a high of 74°F (23°C). Conditions are forecast to improve on Monday with clearing skies and a high of 79°F (26°C), followed by partly sunny weather on Tuesday with a high of 80°F (27°C).
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Cool Air Mass Brings Relief to Eastern Corn Belt, Severe Storms Expected in Northern Plains

Cool Air Mass Brings Relief to Eastern Corn Belt, Severe Storms Expected in Northern Plains

A cool air mass originating from Canada is moving into the northern-tier states, bringing relief to the soaked eastern Corn Belt. According to the National Weather Service, this air mass has pushed heavy rain and thunderstorms away from the Midwest and Ohio Valley toward the East Coast as of this morning. However, as the system advances deeper into the Northern Plains, heavy showers and strong to severe thunderstorms are expected to develop and move toward the Midwest later this evening. Additionally, a slight risk of severe thunderstorms exists farther south across the central Plains. Scattered storms are forecast across central Nebraska, northern Kansas, and as far east as the Mississippi River. Hit-or-miss storms may also occur in the central and southern Rockies and the central High Plains. Meanwhile, the southern tier of the U.S. remains under a steamy air mass, with record highs and warm minimum temperatures expected in the Southeast and desert Southwest by Wednesday.
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Washington D.C. Anticipates End of 90-Degree Days for August

Washington D.C. Anticipates End of 90-Degree Days for August

Washington D.C. is expected to experience its last 90-degree Fahrenheit day for August on Wednesday, with a cooler weather pattern anticipated for the remainder of the month. The forecast predicts highs around 90 degrees in D.C. and nearby areas for Wednesday. If this occurs, it will mark the 43rd day of 90-plus temperatures this year, slightly above the typical annual average of 40 days. A persistent heat dome over the south-central and Southwest U.S. is influencing this pattern, pushing broiling temperatures of nearly 110 degrees to the southern Plains. However, a dip in the jet stream downstream of this heat dome is expected to keep the Mid-Atlantic region, including D.C., on the cooler side for the final 10 days of August. Both American and European weather models indicate below-average to near-average temperatures for the region during this period, with D.C. likely staying below 90 degrees after Wednesday.
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Super El Niño Intensifies, Reaching Record Levels Ahead of Winter

Super El Niño Intensifies, Reaching Record Levels Ahead of Winter

Meteorologists are observing the rapid intensification of a Super El Niño event, with forecasts suggesting it could reach record-breaking levels as winter approaches. This phenomenon, characterized by unusually warm sea surface temperatures in the equatorial Pacific Ocean, is already influencing global weather patterns. Reports indicate that parts of South Carolina and the western United States are experiencing significant drought conditions, while the southeastern U.S. has seen a relatively healthy rainy season. The slow movement of storms has also been noted, though major flooding events have not yet occurred (Source time: not specified).
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Representative Fedorchak Secures Drought Flexibility for North Dakota Farmers from USDA

Representative Fedorchak Secures Drought Flexibility for North Dakota Farmers from USDA

Representative Julie Fedorchak (R-ND) successfully advocated for North Dakota farmers and ranchers facing severe drought conditions, leading the U.S. Department of Agriculture (USDA) to confirm greater flexibility in federal emergency haying rules. Following her request, the USDA announced that producers can now contact their local county Farm Service Agency (FSA) office to request an extension to the standard 15-day timeframe for removing hay bales from Conservation Reserve Program (CRP) lands. Fedorchak raised this issue after an agriculture roundtable with producers and state leaders at Kuhn Farms near Dickinson, where concerns were voiced about the rigidity of federal deadlines that do not align with on-the-ground conditions. Producers highlighted that the 15-day deadline was impractical, especially during harvest, and sought a 30-day extension and more authority for local FSA leadership to determine appropriate timing based on local conditions. This move by the USDA directly addresses these concerns, ...
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East Tennessee Faces Heat Advisory and Slight Risk of Severe Storms

East Tennessee Faces Heat Advisory and Slight Risk of Severe Storms

East Tennessee is under a Heat Advisory until 8 PM Monday evening, with high temperatures expected to reach the mid-90s °F (35-36 °C) and heat indices between 100-105 °F (38-41 °C). Additionally, the Storm Prediction Center has upgraded the region to a Level 2 out of 5 Slight Risk for severe storms. A weak summertime cold front is expected to move through the area, triggering scattered thunderstorms between 3 PM and sunset. The primary threats include damaging wind gusts and localized flooding, while hail and tornado risks remain low but not negligible. This marks the last day of heightened heat and storm activity before conditions stabilize.