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Weekend Weather Preview
September 26, 2025 at 01:10 PM EDT
By WeatherBug Meteorologist, Alyssa Robinette
If you’re headed outside to enjoy some fall festivities this weekend, it should be smooth-sailing for a most of the Northern Tier and Central U.S. A soggier forecast is in store though for a few spots, and our attentions will also need to shift to some tropical trouble.
Saturday
A cold front will be stalled over the Southeast on Saturday, while a developing low pressure system moves along the front. Rain showers and thunderstorms will soak the entire Southeast as well as most of the Mid-Atlantic throughout the day. Even southern New England could start to see a few rain showers late Saturday evening.
Meanwhile, an upper-level disturbance will hover over the Southwest for the start of the weekend. This will bring a good chance for rain showers and thunderstorms to southern California, southern Nevada and the Four Corners states.
Within rain and thunderstorms across the Southeast, Mid-Atlantic and Southwest, there will be the potential for slow-moving, repeated rounds of moderate to heavy rain. Localized flooding could develop as a result, so remember to “Turn Around, Don’t Drown!” if you do come across a flooded roadway. Some gusty winds could also be found within thunderstorms.
All eyes will be on the tropics this weekend as Humberto churns in the west-central Atlantic, but a new tropical system will likely form over or very close to the Bahamas to start the weekend. Humberto will remain far enough offshore, with the focus shifting to this new system in the short-term. This new tropical system could help enhance rainfall, especially across the Southeast.
The rest of the U.S. will remain dry under high pressure, including the Northwest, northern Rockies, Plains, Midwest and Northeast.
Seventies and 80s will be most common throughout the nation on Saturday. The highest elevations of the Appalachians could only see temperatures in the 60s, while 50s and 60s will be scattered throughout the Mountain West. Warmer 90s are likely for the southern Plains as well as the Desert Southwest into California’s Central Valley.
Sunday
The Southeast and Mid-Atlantic will continue to be under the influence of a stalled cold front on Sunday, while this tropical low pressure system over the Bahamas continues to organize. Occasional to frequent rounds of rain and thunderstorms are expected throughout the Southeast and Mid-Atlantic, with the best chance occurring along the east coast of Florida into the Southeast and Mid-Atlantic coasts.
While the most significant impacts remain well offshore, moisture from this tropical system will continue to enhance rainfall throughout the Southeast and Mid-Atlantic. Gusty winds could also still occur within showers and thunderstorms.
At the same time, the Western U.S. will have to contend with two weather systems. The disturbance from Saturday will remain nearly stationary over the Four Corners states, while a larger, slower-moving system approaches throughout the day.
Expect widespread rain showers and thunderstorms for the southern half of California, the Great Basin, the Four Corners states and southern Idaho into western and southern Wyoming. There is the potential for torrential downpours here, which could create some localized flooding. Rain showers and perhaps a few thunderstorms will also become increasingly likely for the Pacific Northwest and northern California in the evening and overnight.
It will be another dry day across the Plains, Midwest and Northeast if you’re looking to take a drive to see some fall colors or head to a pumpkin patch.
Temperatures will be like those on Saturday, with most places recording highs in the 70s and 80s. The higher elevations in the Mountain West will once again have temperatures peak only in the 50s and 60s, with a few isolated 60s also possible in the tallest peaks of the Appalachians. Isolated 90s are possible again in the Desert Southwest, southern Plains and even a few spots in Florida.
Saturday
A cold front will be stalled over the Southeast on Saturday, while a developing low pressure system moves along the front. Rain showers and thunderstorms will soak the entire Southeast as well as most of the Mid-Atlantic throughout the day. Even southern New England could start to see a few rain showers late Saturday evening.
Meanwhile, an upper-level disturbance will hover over the Southwest for the start of the weekend. This will bring a good chance for rain showers and thunderstorms to southern California, southern Nevada and the Four Corners states.
Within rain and thunderstorms across the Southeast, Mid-Atlantic and Southwest, there will be the potential for slow-moving, repeated rounds of moderate to heavy rain. Localized flooding could develop as a result, so remember to “Turn Around, Don’t Drown!” if you do come across a flooded roadway. Some gusty winds could also be found within thunderstorms.
All eyes will be on the tropics this weekend as Humberto churns in the west-central Atlantic, but a new tropical system will likely form over or very close to the Bahamas to start the weekend. Humberto will remain far enough offshore, with the focus shifting to this new system in the short-term. This new tropical system could help enhance rainfall, especially across the Southeast.
The rest of the U.S. will remain dry under high pressure, including the Northwest, northern Rockies, Plains, Midwest and Northeast.
Seventies and 80s will be most common throughout the nation on Saturday. The highest elevations of the Appalachians could only see temperatures in the 60s, while 50s and 60s will be scattered throughout the Mountain West. Warmer 90s are likely for the southern Plains as well as the Desert Southwest into California’s Central Valley.
Sunday
The Southeast and Mid-Atlantic will continue to be under the influence of a stalled cold front on Sunday, while this tropical low pressure system over the Bahamas continues to organize. Occasional to frequent rounds of rain and thunderstorms are expected throughout the Southeast and Mid-Atlantic, with the best chance occurring along the east coast of Florida into the Southeast and Mid-Atlantic coasts.
While the most significant impacts remain well offshore, moisture from this tropical system will continue to enhance rainfall throughout the Southeast and Mid-Atlantic. Gusty winds could also still occur within showers and thunderstorms.
At the same time, the Western U.S. will have to contend with two weather systems. The disturbance from Saturday will remain nearly stationary over the Four Corners states, while a larger, slower-moving system approaches throughout the day.
Expect widespread rain showers and thunderstorms for the southern half of California, the Great Basin, the Four Corners states and southern Idaho into western and southern Wyoming. There is the potential for torrential downpours here, which could create some localized flooding. Rain showers and perhaps a few thunderstorms will also become increasingly likely for the Pacific Northwest and northern California in the evening and overnight.
It will be another dry day across the Plains, Midwest and Northeast if you’re looking to take a drive to see some fall colors or head to a pumpkin patch.
Temperatures will be like those on Saturday, with most places recording highs in the 70s and 80s. The higher elevations in the Mountain West will once again have temperatures peak only in the 50s and 60s, with a few isolated 60s also possible in the tallest peaks of the Appalachians. Isolated 90s are possible again in the Desert Southwest, southern Plains and even a few spots in Florida.