Lexington Weather

Lexington, Massachusetts, USA
49°F
3/8/2026 3:22am
Lexington Conditions: Overcast
Temperature: 48.9°F / 9.4°C
Dew Point: 47.8°F
Relative Humidity: 96%
Wind: Calm, 10-min avg: Calm, gust: None
Barometer: 29.67 in Steady
Visibility: 10 miles
Rain Today: 0.00 in
National Short Range Forecast Discussion

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
246 PM EST Sat Mar 07 2026

Valid 00Z Sun Mar 08 2026 - 00Z Tue Mar 10 2026

...Severe weather and flash flood risk expected with widespread showers
and thunderstorms from the Great Lakes to Texas Saturday...

...Lower elevation coastal/valley rain and high elevation snow will
continue for the Pacific Northwest and northern Rockies this weekend...

...Well above average to record warmth pushing eastward into the eastern
U.S. as anomalous warmth emerges over the northern Plains during the
weekend...

A stormy Saturday is in store from Texas to the Great Lakes as showers and
thunderstorms track eastward along and ahead of an advancing cold front.
Increased shear ahead of a leading upper-level shortwave over the Lower
Great Lakes/Upper Ohio Valley is expected to lead to a few more robust
thunderstorms, which has prompted a Slight Risk of severe weather (level
2/5) from the Storm Prediction Center for the threat of a few tornadoes as
well as damaging winds. Greater instability and sufficient shear to the
southwest over portions of the Lower Mississippi Valley and eastern/south
Texas is also expected to produce some severe weather with a second Slight
Risk in place for the threat of large hail and damaging winds. In
addition, the tendency for storms to train/repeat over the same areas as
storm movements become more parallel to the increasingly east/west
oriented cold front across the Lower Mississippi Valley and Texas has
prompted a Slight Risk of Excessive Rainfall (level 2/4) for the threat of
some scattered instances of flash flooding. More isolated instances of
severe weather and flash flooding can be expected elsewhere ahead of the
front. The cold front is expected to continue tracking eastward spreading
the convection to the Mid-Atlantic and New England regions for Sunday. The
frontal boundary will move offshore while lingering from the Southeast to
the south-central states.The risk for severe weather and flash flooding on
Sunday is currently expected to remain isolated.

A persistent influx of Pacific moisture within the energetic upper-level
flow will keep chances for lower elevation coastal/valley rain and higher
elevation snows to the Pacific Northwest and northern Rockies through the
weekend. A more potent system will bring the chance for some locally heavy
snowfall into the mountains by later Sunday and especially into Monday.
Elsewhere, some light freezing rain will linger into the day Saturday for
portions of northern New England. Some daily showers and thunderstorms
will be possible for Florida, and an intensifying upper-low will bring a
shot for some isolated showers and thunderstorms into the Desert Southwest
late Sunday and into early Monday. Very strong, gusty winds are expected
across southern California today as a Santa Ana wind event continues, with
gusts upwards of 70 mph possible. Similarly strong winds, with gusts
upwards of 80 mph possible, are also expected with a cold front passage
across the northern Rockies Sunday.

Above to well-above average temperatures will be present across a vast
portion of the country this weekend. Some of the greatest departures from
normal will be centered near the Great Lakes and Ohio Valley in terms of
20 to 30 degrees warmer, with daily high temperatures climbing into the
60s and 70s; which, could yield numerous daily record-tying/breaking
highs. For the Southeast, daily highs into the 80s Saturday, though a cold
front will bring relatively cooler temperatures by around 10 degrees
across these regions Sunday. The Northeast, after a cooler end to the week
due a lingering frontal boundary, will finally see a warm up into the 40s
and 50s Saturday with 60s by Sunday. For the central U.S., well above
average highs are expected ahead of the cold front Saturday with 60s and
70s for the Middle Mississippi Valley and 70s and 80s into the Lower
Mississippi Valley west into portions of Texas. A relative cool down by 5
to 10 degrees will follow on Sunday. Meanwhile, highs across the Plains
will warm from the 50s Saturday into the 60s and 70s Sunday as
post-frontal conditions moderate. Another batch of potential
record-tying/breaking daily highs will be possible in the northern Plains
as these temperatures reach upwards of 25-30 degrees above average here as
well. Temperatures will also be trending warmer and further above average
across the western U.S. this weekend. Forecast highs Saturday range in the
40s and 50s for the interior and the 60s and 70s for California and into
the Desert Southwest, and will trend around 10 degrees warmer for Sunday.
The one exception will be in the Pacific Northwest where highs in the 50s
Saturday will cool a few degrees Sunday following a cold front passage.

Campbell/Putnam


Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php