How does NOAA issue severe storm watches for South Valley?

The National Weather Service (NWS) monitors atmospheric instability across Maryland. When convective storms, tornado potential, or flash floods are detected, automated NOAA advisories are immediately broadcasted.

What are the best outdoor weather hours in South Valley today?

Check the 24-hour hourly trend chart above to identify windows of minimal rain probability, low UV index periods, and mild temperatures.

Unknown NOAA AlertExpires: Sep 22, 06:13 PM

Test Message — Montgomery

Test Message

MD, USAZIP 20747Live NOAA Station

South Valley, MD

Llovizna•Sensación térmica 55°F-1° wind chill

63°F/58°F

11 mph 47°

93%Humedad

58°F

National Weather Service High-Resolution Rapid Refresh (HRRR)

Actualizado: 10:00 AM (America/New_York)

Daily Meteorological Briefing

South Valley, MD

Synthesized forecast and practical day-planning insights

NOAA HRRR Stream

Periodic rain showers and wet ground are observed across South Valley, MD today.

Current temperature is 58°F (feels like 55°F), with daytime highs reaching 63°F and overnight lows around 58°F. Humidity is at 93%, with atmospheric pressure steady at 1022.6 hPa.

Keep an umbrella handy if heading outdoors and expect minor roadway spray.

Daily Range

Δ 3° Variation

Rain Likelihood

Active Showers

Solar Exposure

UV 0.35 • Moderate

24-Hour Temperature & Rain Outlook

Hourly temperature progression and precipitation probability

Temp (°F) Rain (%)

Pronóstico por Hora

Next 16 Hours

Now

63°F

24%

1 AM

63°F

21%

2 AM

62°F

25%

3 AM

61°F

46%

4 AM

61°F

54%

5 AM

60°F

54%

6 AM

60°F

56%

7 AM

58°F

74%

8 AM

58°F

75%

9 AM

58°F

50%

10 AM

58°F

42%

11 AM

58°F

39%

12 PM

58°F

30%

1 PM

58°F

52%

2 PM

58°F

63%

3 PM

58°F

66%

Pronóstico de 10 Días

Extended 10-day meteorological outlook

10-Day Range

Hoy

22 sept

79%

58°F

63°F

mié

23 sept

44%

54°F

61°F

jue

24 sept

51°F

67°F

vie

25 sept

46°F

71°F

sáb

26 sept

49°F

73°F

dom

27 sept

19%

53°F

75°F

lun

28 sept

55°F

75°F

mar

29 sept

57°F

80°F

mié

30 sept

12%

60°F

84°F

jue

1 oct

20%

64°F

90°F

Weather Details & Observations

Real-time atmospheric measurements and environmental indicators

Live Feed

Índice UVLow

0.35 / 11+

No protection neededPeak 0.35

Viento47°

11 mph

Wind Gusts:25 mph

Conditions:Gentle breeze

Sun CycleDaylight

Sunrise06:56 AM

Sunset07:05 PM

Solar Noon:12:54 PM

HumedadHumid

93%

Punto de Rocío:56°F

PresiónSteady

30.20 inHg

Trend:Stable (+0.1 hPa)

VisibilidadClear

5.4 mi

Haze:Minimal

Air Quality Index (AQI)Good

33US EPA Standard

Air quality is ideal for outdoor activities.

PM2.55 µg

OZONE50 µg

PM105 µg

Daily Lifestyle & Activity Index

Practical recommendations tailored to current local conditions

Outdoor SportsGood

Pleasant conditions for light outdoor activities.

Car WashNot Advised

Precipitation expected in the forecast over the next 24 hours.

Pollen & AllergyLow Risk

Pollen counts remain in the comfortable range.

Driving SafetyOptimal

Dry pavement and clear visibility throughout.

Sun & Moon • Celestial Dynamics

Solar orbital arc trajectory and lunar cycle visibility

Astronomy Telemetry

Solar Day TrackDaylight Arc

Sunrise02:56 AM

Daylight ~13h

Sunset03:05 PM

Lunar Phase & StargazingNight Sky

Waxing Gibbous

80% Illumination

Stargazing condition: Optimal Visibility

Next Full Moon in ~5 daysTidal Currents Normal

Preguntas Frecuentes sobre el Clima - South Valley, Maryland

The current weather in South Valley is around 58°F. Forecast models from NOAA and high-resolution satellite imagery provide 10-day trends and real-time precipitation radars updated every 15 minutes.

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