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WeatherLive › Maryland › Johnston Square

Johnston Square, MD Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherJohnston Square · 1:11 PM EDT
92° | 70°
92°F
Feels like 98°
Sunny
WindE 4 mph · Gusts 5 mph
Precip6% · –
Humidity50% · Dew point 71°
UV index8 High
Air Quality115 Unhealthy for Sensitive Groups
Pressure30.15 inHg
Visibility6 mi
Sunrise / Sunset6:19 AM · 8:02 PM · 13h 43m

Weather map — Johnston Square

Full radar →
Now
92°
2%
4 mph
14:00
87°
2%
4 mph
15:00
86°
3%
4 mph
16:00
83°
4%
5 mph
17:00
83°
7%
4 mph
18:00
82°
4%
4 mph
19:00
82°
4%
4 mph
20:00
80°
5%
4 mph
21:00
79°
5%
3 mph
22:00
78°
6%
4 mph
23:00
77°
6%
6 mph
00:00
76°
13%
6 mph
01:00
76°
17%
6 mph
02:00
76°
21%
7 mph
03:00
76°
18%
7 mph
04:00
75°
54%
7 mph
05:00
75°
40%
7 mph
06:00
75°
56%
6 mph
07:00
73°
0.13 in
6 mph
08:00
72°
0.14 in
7 mph
09:00
73°
0.07 in
8 mph
10:00
73°
0.14 in
11 mph
11:00
73°
0.07 in
11 mph
12:00
73°
0.31 in
10 mph

Today · Sat 8/15

High 92°
6% / –

Sunny. Winds NE at 7 mph.

Tonight · Sat 8/15

Low 72°
5% / –

Partly cloudy. Winds E at 3 mph.

Tomorrow · Sun 8/16

76° | 71°
91% / 1.47 in

Showers. Winds SE at 13 mph.

7-day trend

Johnston Square · temperature + precipitation

10-day forecast

Updated 1:11 PM

Details & indices

Wind
4 mph E
Gusts 5 mph
Humidity
50%
Dew point 71°
Pressure
30.15 inHg
Rising
UV index
8 — High
High today
Air Quality
Unhealthy for Sensitive Groups
AQI 115 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — Johnston Square

🌿 Conditions right now

View all →
Birch
None
Grass
Moderate
Oak
None
Alder
None
Hazel
None
Mugwort
Very high
Ragweed
None

Sun & moon

Sunrise6:19 AM
Sunset8:02 PM
Length of day13h 43m
Moonrise9:32 AM
Moonset9:28 PM
Moon phase🌒 Waxing Crescent · 11%
Next full moonAug 28 Sturgeon Moon
Latitude39.3035°N
Longitude-76.6062°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Baltimore
—
—
Data sources · Saturday, August 15
Where the Johnston Square forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 39.3035°N, -76.6062°.
NBM + global weather models
Updated: 1:11 PM
Weather in Johnston Square
Johnston Square's outlook: warmest day near 92° (Saturday), coldest night about 69° (Monday). Models drop roughly 4.1 in of precipitation across the stretch — watch Sunday (91%). No watches or warnings are active for the area right now. Right now Johnston Square is running about 22° warmer than Philadelphia. Longer view: variable mid-latitude weather in every season.
Johnston Square, MD · Elev 115 ft · 39.30°N, 76.61°W · Maryland · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 1:11 PM