Weather Planner: Tuesday, July 21, 2026
After a few morning showers Tuesday, a strong low pressure and associated cold front will trigger scattered to numerous severe thunderstorms of a similar intensity to Saturday. Damaging winds are the primary threat but a tornado or two cannot be ruled out. Humidity will be moderate with blustery south winds and highs in the mid and upper 70s. Thunderstorms will diminish by the evening, but scattered showers will remain possible overnight.
Humidity, Air Quality, Thunderstorms
Dewpoints: Moderately humid, mid-upper 60s dewpoints
Air Quality Index: No significant concerns: Mainly Level 1/Green/Good
Severe Thunderstorms: Scattered to numerous severe storms likely, mainly between 3-7 PM. Damaging winds the primary threat, isolated tornadoes a secondary threat.
Check back Tuesday morning for the latest updates and expectations. A live blog with instant updates during the severe thunderstorm event is likely tomorrow afternoon.
Early Morning (3-7 AM)
Mainly thin clouds
No precipitation is expected.
South winds around 10 mph.
Temperatures in the mid and upper 60s.
Morning (7-11 AM)
More clouds than sun.
A few scattered showers.
South winds 10-15 mph.
Temperatures rising to the mid 70s.
Midday (11 AM-1 PM)
More clouds than sun.
A few scattered showers.
South winds around 15 mph.
Temperatures in the mid and upper 70s.
Afternoon (1-5 PM)
Clouds, some breaks of sun.
Scattered to numerous severe thunderstorms, especially after 3 PM.
South and southwest winds around 15 mph.
Temperatures in the mid and upper 70s.
Late Afternoon (5-7 PM)
Mostly cloudy.
Scattered to numerous severe thunderstorms.
Southwest winds 10-15 mph.
Temperatures in the mid 70s, but locally cooler in the wake of thunderstorms.
Evening (7-11 PM)
Mostly cloudy.
Lingering showers and a few early thunderstorms, mainly not severe.
Southwest winds around 10 mph.
Temperatures gradually fall to around 70 degrees or the upper 60s.
Overnight (11 PM-3 AM)
Mostly cloudy.
A few scattered showers.
Southwest winds around 10 mph.
Temperatures drop to the mid 60s.
Wednesday Preview
Morning clouds and some stray showers. Some increasing in sunshine in the afternoon. Northwest winds 10-15 mph. Afternoon highs in the low 70s.
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