New York, NY 77° Los Angeles, CA 65° 🌤️ Chicago, IL Houston, TX 82° 🌤️ Miami, FL 🌤️ Phoenix, AZ 🌤️ Seattle, WA Denver, CO 73° 🌤️ Toronto, ON 🌤️ Vancouver, BC
WeatherLive › Maryland › Ashton-Sandy Spring

Ashton-Sandy Spring, MD Weather (20861)

ZIP codes: 20861 · 20860
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherAshton-Sandy Spring · 10:51 AM EDT
90° | 71°
78°F
Feels like 82°
Sunny
WindN 8 mph · Gusts 12 mph
Precip8% · –
Humidity78% · Dew point 71°
UV index8 Very high
Air Quality43 Good
Pressure29.91 inHg
Visibility6 mi
Sunrise / Sunset6:24 AM · 7:59 PM · 13h 35m

Weather map — Ashton-Sandy Spring

Full radar →
Now
78°
8%
8 mph
11:00
83°
11%
8 mph
12:00
85°
6%
7 mph
13:00
86°
5%
5 mph
14:00
90°
4%
5 mph
15:00
87°
5%
7 mph
16:00
86°
5%
7 mph
17:00
89°
3%
5 mph
18:00
87°
2%
5 mph
19:00
83°
3%
5 mph
20:00
79°
3%
5 mph
21:00
76°
4%
4 mph
22:00
75°
4%
4 mph
23:00
73°
4%
4 mph
00:00
76°
2%
4 mph
01:00
75°
3%
4 mph
02:00
74°
3%
4 mph
03:00
73°
3%
4 mph
04:00
72°
4%
5 mph
05:00
71°
4%
5 mph
06:00
71°
4%
5 mph
07:00
70°
4%
4 mph
08:00
71°
3%
5 mph
09:00
75°
2%
4 mph

Today · Tue 8/18

High 90°
8% / –

Sunny. Winds N at 8 mph.

Tonight · Tue 8/18

Low 70°
4% / –

Sunny. Winds N at 4 mph.

Tomorrow · Wed 8/19

90° | 70°
2% / –

Sunny. Winds W at 7 mph.

7-day trend

Ashton-Sandy Spring · temperature + precipitation

10-day forecast

Updated 10:51 AM

Details & indices

Wind
8 mph N
Gusts 12 mph
Humidity
78%
Dew point 71°
Pressure
29.91 inHg
Rising
UV index
8 — Very high
High today
Air Quality
Good
AQI 43 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — Ashton-Sandy Spring

🌿 Conditions right now

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

Sun & moon

Sunrise6:24 AM
Sunset7:59 PM
Length of day13h 35m
Moonrise12:50 PM
Moonset10:47 PM
Moon phase🌓 First Quarter · 36%
Next full moonAug 28 Sturgeon Moon
Latitude39.1498°N
Longitude-77.0050°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 · Tuesday, August 18
Where the Ashton-Sandy Spring 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: 39.1498°N, -77.0050°.
NBM + global weather models
Updated: 10:51 AM
ZIP codes in Ashton-Sandy Spring
📮
20777
Ashton-Sandy Spring
 📮
20860
Ashton-Sandy Spring
 📮
20861
Ashton-Sandy Spring
 📮
20862
Ashton-Sandy Spring
 📮
21036
Ashton-Sandy Spring
 📮
21737
Ashton-Sandy Spring
Weather in Ashton-Sandy Spring
Ashton-Sandy Spring's outlook: warmest day near 90° (Tuesday), coldest night about 63° (Thursday). Models drop roughly 0.97 in of precipitation across the stretch — watch Wednesday (84%). Wind is the one to watch: gusts to 27 mph around Tuesday. No watches or warnings are active for the area right now. Right now Ashton-Sandy Spring is running about 12° warmer than Pittsburgh. Longer view: variable mid-latitude weather in every season.
Ashton-Sandy Spring, MD · Elev 486 ft · 39.15°N, 77.01°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: 10:51 AM