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

Rock Hall, Maryland Weather

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

Rock Hall weather forecast — hour by hour, 7-day outlook, NOAA radar

Rock Hall, MD
Saturday, July 4 at 5:57 PM
100
°
Clear
Feels like
105°
Humidity
36%
Wind
5 mph
Sunrise
1:44 AM
Sunset
4:34 PM
Rock Hall, MD
Hour by hour · 24h
24-Hour ForecastRock Hall, MD: 24-hour forecast. Temperatures range from 78 to 100 degrees Fahrenheit with a 27% chance of precipitation at 8 PM.
L 78°H 100°
Rock Hall, MD
7-day forecast
  1. Today
    Jul 4
    Light Drizzle
    27%
    0.02″
    102°79°
  2. Sunday
    Jul 5
    Light Drizzle
    43%
    0.01″
    95°78°-7°
  3. Monday
    Jul 6
    Heavy Drizzle
    78%
    86°73°-9°
  4. Tuesday
    Jul 7
    Thunderstorm
    73%
    85°71°-1°
  5. Wednesday
    Jul 8
    Showers
    34%
    0.19″
    79°68°-6°
  6. Thursday
    Jul 9
    Overcast
    10%
    88°70°+9°
  7. Friday
    Jul 10
    Overcast
    34%
    92°75°+4°
Rock Hall, MD
Anemometer · 24h winds · from true
NESW
From · True
SSE
168° · backing 16°
Direction
SSE
168°
Sustained
5
mph
Gust
7
mph
Peak 24h
14
avg 5
Beaufort · 2 · LIGHT BRZ
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 5 · pk 14 @ 5:00a
0102030405060MPHB1B2B3B4B5B6B7B8B9B10B11-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 605SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Rock Hall, MD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1010.4
-1.7 mb in 3h · falling · 29.84 inHg
Now
1010.4
mb
3h
-1.7
mb
12h
-1.9
mb
24h
-1.9
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10101014
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1014.41011.31011.3
−24h−18h−12h−6hnow
Pressure slipping through the change line — wetter air on the way.
Rock Hall, MD
Air quality
167
AQI
Unhealthy
+107 in 6h

AQI 167 (Unhealthy), driven by Ozone. AQI up 107 in the last 6 hours — air quality is degrading. Ozone at AQI 133 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

LIMIT OUTDOORS Limit prolonged outdoor exertion. Sensitive groups should avoid outdoor exertion. Consider rescheduling outdoor activities until AQI improves.

PM 2.5Good
11.1μg/m³
PM 10Good
12μg/m³
NO₂Good
4μg/m³
OzoneDRIVERUnhealthy
157μg/m³
UV IndexModerate
2.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 133 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 133
UV peak
1.8 at earlier today
Sky at peak
clear
Projected peak
AQI 133

PM × Wind × Precip

PM scrubbed by 2 hours of recent rain — PM2.5 down to 11.1 µg/m³, PM10 to 12.0 µg/m³.

PM2.5/PM10
0.92
Wind
light
Recent rain
2h in last 6h
Pattern
washed out
Rock Hall, MD
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
107.0mi
UNLIMITED
124 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
21:57 UTC · Rock Hall, 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
21:57 UTC · Rock Hall, MD · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Rock Hall, MD
Satellite · infrared · animated
Rock Hall, MD
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Rock Hall, MD
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:13 AM
Sunrise
1:44 AM
Daylight
14h 50m
Sunset
4:34 PM
Civil dusk
9:07 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Rock Hall, MD
The moon
Waning Gibbous
78% illuminated
Moonrise
10:57 PM
Moonset
10:09 AM
In sign
♓︎ Pisces
Rock Hall, MD
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Rock Hall at a glance

  • Today vs. normal: 27°F above the seasonal normal for this latitude
  • Last frost: April 11 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 21661

16-Day Forecast — Rock Hall

  1. Sat102°79°27%
  2. Sun95°78°43%
  3. Mon86°73°78%
  4. Tue85°71°73%
  5. Wed79°68°34%
  6. Thu88°70°10%
  7. Fri92°75°34%
  8. Sat90°75°31%
  9. Sun83°72°24%
  10. Mon78°68°18%
  11. Tue85°67°18%
  12. Wed88°71°34%
  13. Thu91°74°35%
  14. Fri88°74°32%
  15. Sat89°74°35%
  16. Sun90°75°43%

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 — Rock Hall

SPC has placed Rock Hall in the Enhanced Risk category for severe thunderstorms today.

  • TODAYENHEnhanced Risk
  • TOMORROWSLGTSlight Risk
  • DAY 3TSTMGeneral Thunderstorms

Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.

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 Rock Hall

  • 21661

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.