Weather StoryAlmanac, microseasons, and the day's weather story.

Big Pool, Maryland Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Big Pool weather forecast — hour by hour, 7-day outlook, NOAA radar

Big Pool, MD
Saturday, July 4 at 7:20 PM
79
°
Overcast
Feels like
87°
Humidity
77%
Wind
1 mph
Sunrise
1:49 AM
Sunset
4:43 PM
Big Pool, MD
Hour by hour · 24h
24-Hour ForecastBig Pool, MD: 24-hour forecast. Temperatures range from 75 to 94 degrees Fahrenheit with a 38% chance of precipitation at 5 PM.
L 75°H 94°
Big Pool, MD
7-day forecast
  1. Today
    Jul 4
    Heavy Rain
    35%
    0.50″
    101°75°
  2. Sunday
    Jul 5
    Heavy Rain
    38%
    0.64″
    94°76°-7°
  3. Monday
    Jul 6
    Light Drizzle
    77%
    0.01″
    82°70°-12°
  4. Tuesday
    Jul 7
    Heavy Showers
    77%
    1.1″
    89°64°+7°
  5. Wednesday
    Jul 8
    Light Drizzle
    15%
    81°63°-8°
  6. Thursday
    Jul 9
    Overcast
    13%
    94°64°+13°
  7. Friday
    Jul 10
    Light Drizzle
    43%
    87°67°-7°
Big Pool, MD
Anemometer · 24h winds · from true
NESW
From · True
E
090° · veering 171°
Direction
E
090°
Sustained
1
mph
Gust
2
mph
Peak 24h
24
avg 6
Beaufort · 1 · LIGHT AIR
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 6 · pk 24 @ 2:00a
01020304050MPHB1B2B3B4B5B6B7B8B9-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 443SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Big Pool, MD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
997.1
-0.1 mb in 3h · steady · 29.44 inHg
Now
997.1
mb
3h
-0.1
mb
12h
-2.4
mb
24h
-1.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 9961000
9909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1000.4995.7997.1
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Big Pool, MD
Air quality
92
AQI
Moderate
+41 in 6h

AQI 92 (Moderate), driven by Ozone. AQI up 41 in the last 6 hours — air quality is degrading. Ozone at AQI 73 now. With UV 0.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12 around 1 PM.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
7.5μg/m³
PM 10Good
8μg/m³
NO₂Good
2μg/m³
OzoneDRIVERUnhealthy SG
121μg/m³
UV IndexLow
0.5

What's driving it

Ozone × UV × Sky

Ozone at AQI 73 now. With UV 0.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12 around 1 PM.

Present
AQI 73
UV peak
0.4 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 12

PM × Wind × Precip

PM2.5 at 7.5 µg/m³, PM10 at 8.1 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.93
Wind
calm
Recent rain
1h in last 6h
Pattern
background
Big Pool, MD
Sky cover · visibility · 24h
Cloud cover
96%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
49.3mi
UNLIMITED
120 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
23:20 UTC · Big Pool, MD · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
23:20 UTC · Big Pool, MD · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Big Pool, MD
Satellite · infrared · animated
Big Pool, MD
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Big Pool, MD
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:18 AM
Sunrise
1:49 AM
Daylight
14h 54m
Sunset
4:43 PM
Civil dusk
9:16 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Big Pool, MD
The moon
Waning Gibbous
78% illuminated
Moonrise
11:05 PM
Moonset
10:16 AM
In sign
♓︎ Pisces
Big Pool, MD
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Big Pool at a glance

  • Today vs. normal: 7°F above the seasonal normal for this latitude
  • Last frost: April 14 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 21711

16-Day Forecast — Big Pool

  1. Sat101°75°35%
  2. Sun94°76°38%
  3. Mon82°70°77%
  4. Tue89°64°77%
  5. Wed81°63°15%
  6. Thu94°64°13%
  7. Fri87°67°43%
  8. Sat91°67°29%
  9. Sun83°63°20%
  10. Mon83°61°18%
  11. Tue88°58°17%
  12. Wed92°60°39%
  13. Thu93°62°33%
  14. Fri85°66°33%
  15. Sat92°68°31%
  16. Sun84°68°37%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Big Pool

SPC has placed Big Pool in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWSLGTSlight Risk
  • DAY 3TSTMGeneral Thunderstorms

Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Big Pool

  • 21711

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.