Good morning, Maryland. Per the National Weather Service offices in Baltimore/Washington (issued 3:53 AM), Mount Holly (4:23 AM), and Wakefield (4:07 AM), today is the calm before a modest storm — the last fully dry, comfortable day before warmth and humidity build and shower/thunderstorm chances return Thursday. Canadian high pressure, sliding offshore, keeps us dry and mostly sunny statewide with just a bit more warmth than we’ve had lately. Enjoy it.
Timing: Today & Tonight
- Pre-dawn (now–7 AM): Clear skies, light decoupled winds. Patchy fog possible in mountain valleys, low-lying spots, and parts of the Eastern Shore as temps bottom out.
- Morning: Fog burns off quickly with sunshine; skies go sunny to mostly sunny almost everywhere.
- Afternoon: Highs arrive mid-to-late afternoon under a mostly sunny sky — warmest day of the week so far, with light south winds and rising humidity (not oppressive).
- Evening into overnight: Clouds slowly increase, especially north of I-70/US-50, ahead of Thursday’s front. Lows in the low-to-mid 60s for most; upper 50s to low 60s well inland/mountains.
Region by Region
Western Maryland
Garrett (Deep Creek/Oakland): High near 82° (upper 70s to near 82), sunny, light west winds around 3 mph. Low tonight 63°, with a slight (28%) chance of late-night showers/storms sneaking in ahead of Thursday’s front. Allegany (Cumberland): Warmest spot in the state — high 90° after early patchy fog, sunny, near-calm south wind. Low near 66° with a 20% shower/storm chance overnight and lingering fog toward dawn.
Northern & Central Maryland
Washington Co. (Hagerstown): Sunny, high 87°, south winds 2–6 mph. Low 66°, mostly clear to partly cloudy, only an 8% shower chance. Frederick & Carroll: Sunny and pleasant, high 86°, light south winds. Low 65°, partly cloudy, negligible rain risk tonight.
Baltimore Metro
Baltimore City & County, Harford, Howard, Anne Arundel: Sunny skies, high 85°, south winds 1–8 mph — a genuinely great day to be outside, from Federal Hill to the Bel Air fairgrounds. Overnight low 68° with just a stray 4% shower chance; skies turn partly cloudy as clouds build ahead of Thursday.
DC Suburbs
Montgomery & Prince George’s: Sunny, high around 84° (Silver Spring gridpoint), south winds 2–7 mph. Low 65° tonight, partly cloudy, minimal rain risk (3%).
Southern Maryland
Charles, Calvert, St. Mary’s: Sunny and warm, high near 82° (Prince Frederick gridpoint), light south winds 1–7 mph. Low 64°, mostly clear, essentially no rain chance tonight — a fine evening for the docks and marinas along the Patuxent and Potomac.
Upper Eastern Shore
Cecil, Kent, Queen Anne’s, Talbot, Caroline: Sunny, high 83° (Easton gridpoint), light south winds up to 10 mph. Low 67°, mostly clear — patchy morning fog possible given Shore dew points, but it clears out fast.
Lower Eastern Shore
Dorchester, Wicomico, Somerset: Patchy early fog gives way to sun; high near 82° (Salisbury gridpoint), south winds 1–6 mph. Low 63°, mostly clear, only a slight (4%) overnight rain chance.
Ocean City & the Coast
Worcester/Ocean City: Sunny and comfortably cool at the beach — high 75°, southeast winds around 5 mph. Surf around 2 feet, rip current risk is Low, water temp in the mid 70s, UV Index High — bring sunscreen despite the milder air. High tide at the Ocean City Fishing Pier is 11:46 AM EDT. Tonight, mostly clear with a low near 66° and light south breeze around 8 mph.
Active Hazards
No active watches, warnings, or advisories are in effect for Maryland at this time — land or marine. The Hazardous Weather Outlook from LWX confirms no hazardous weather is expected today or tonight across the DC/Baltimore metro, the Chesapeake Bay, and Tidal Potomac. Enjoy the quiet stretch; it won’t last past Thursday.
Severe & Flooding Outlook
Nothing severe or flood-related is expected today or tonight. Looking ahead, Thursday brings the next chance of showers and thunderstorms as a cold front approaches and stalls near the Ohio Valley — activity should be most numerous across Western Maryland (Garrett/Allegany, 55-65% chance) and the Hagerstown/Frederick/Carroll corridor (up to 67-73% chance Thursday into Thursday night), weakening as it presses east toward the Bay and Shore, where chances drop to a slight 15-35%. No widespread severe weather signal at this time — instability and shear look modest — but a few gusty downpours can’t be ruled out west of I-95.
Heat, Humidity & Winds
Temperatures climb back above average for mid-September today, with highs in the mid-to-upper 80s across most of central and southern Maryland and near 90° in the Cumberland valley — only the true high country of Garrett stays a touch cooler in the low-to-mid 80s, and Ocean City stays pleasant in the mid 70s thanks to the sea breeze. Humidity is on the rise with a shift to southerly flow, but nothing oppressive — think comfortably warm rather than sticky. Winds stay light out of the south across the state today, generally 1 to 8 mph, with the DC suburbs seeing 2 to 7 mph — nothing that will rattle a beach umbrella or a farm stand awning.
Chesapeake Bay & Marine
No marine watches or warnings are posted for the Bay, Tidal Potomac, or coastal waters. Winds stay light and southerly today, generally under 10 mph across the open Bay — a fine day for sailors and paddlers from Pooles Island down to Drum Point.
Overnight Lows by Zone
| Western Mountains (Garrett) | 63° |
| Cumberland/Allegany | 66° |
| Hagerstown | 66° |
| Frederick/Carroll | 65° |
| Baltimore/DC corridor | 65–68° |
| Southern Maryland | 64° |
| Eastern Shore | 63–67° |
| Ocean City | 66° |
Looking Ahead
Thursday turns warmer still, with highs near 88° across the Baltimore/DC corridor and Frederick/Carroll, and up to 88° in the Cumberland valley — but that warmth comes with a real shower and thunderstorm chance, especially west of I-95, as a cold front approaches and stalls near the Ohio Valley. A stronger cold front then sweeps through early Friday behind another dome of high pressure, ushering in a cooler, less humid end to the week with highs back in the upper 70s to mid 80s and gusty north winds 15 to 20 mph. The weekend pattern still looks unsettled and uncertain, with the front wavering nearby into early next week — stay tuned for updates.
Data: NWS Baltimore/Washington, Mount Holly & Wakefield. — MDWA will keep you posted as Thursday’s storm chances come into sharper focus. Stay dry out there, Maryland.