Weather Alerts For Tysons Corner, VA

URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 213 AM EDT Tue Apr 7 2026 Southern Baltimore-Central and Southeast Montgomery-Central and Southeast Howard-Fairfax- 213 AM EDT Tue Apr 7 2026 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...In Maryland, Central and Southeast Howard, Central and Southeast Montgomery, and Southern Baltimore Counties. In Virginia, Fairfax County. * WHEN...From midnight tonight to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. &&

Pollen Index: 10.9 Pollen Level: high Predominant Pollen: Maple, Cedar/Juniper and Alder. Based on past pollen counts and expected weather conditions, pollen levels for Tuesday will remain stable in the very high range. This is a result of stable humidity. Pollen producing plants are at a relatively steady level of pollination at this time.