Radar
AIR QUALITY ALERT
AIR QUALITY ALERT ISSUED APRIL 22 AT 5:17PM EDT
Effective: 2026-04-22 17:17:00 Local Time Expires: 2026-04-23 20:00:00 Local Time Issued by: NWS Columbia SC
THE SOUTH CAROLINA DEPARTMENT OF ENVIRONMENTAL SERVICES (SCDES) HASISSUED A CODE ORANGE AIR QUALITY ALERT FOR FINE PARTICULATES FOR THE CENTRAL SAVANNAH RIVER, CENTRAL MIDLANDS, AND PORTIONS OF THE PEE DEE REGION OF SOUTH CAROLINA THROUGH THURSDAY EVENING. A CODE ORANGE AIR QUALITY ALERT MEANS THAT THE FINE PARTICULATE CONCENTRATIONS WITHIN THE SPECIFIED AREAS MAY APPROACH OR EXCEED UNHEALTHY STANDARDS FOR INDIVIDUALS SENSITIVE TO PARTICLE POLLUTION.

SOUTHERLY WINDS ON THE WEST SIDE OF HIGH PRESSURE CENTERED JUST OFF THE SOUTHEAST COAST WILL CONTINUE TO TRANSPORT SMOKE FROM THE SOUTHERN GEORGIA WILDFIRES INTO SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA (CSRA). AS OF THE EARLY AFTERNOON HOURS WEDNESDAY, AIR QUALITY WAS ALREADY DETERIORATING OVER THE CSRA AND MIDLANDS REGIONS. AS STABLE CONDITIONS DEVELOP TONIGHT, SMOKE IS EXPECTED TO EXPAND IN COVERAGE AND BECOME NOTICEABLE. SMOKE FROM THE WILDFIRES IS EXPECTED TO CONTINUE TO AFFECT THE REGION ON THURSDAY.

SCDES RECOMMENDS THAT INDIVIDUALS WITH RESPIRATORY HEALTH ISSUES LIMIT TIME SPEND OUTDOORS AND OR MOVE ALL ACTIVITIES INDOORS TO AVOID THE SMOKE OR FINE PARTICULATES. KEEP WINDOWS AND DOORS CLOSED. RUN AN AIR CONDITIONER IF YOU HAVE ONE BUT KEEP THE FRESH-AIR INTAKE CLOSED AND THE FILTER CLEAN TO PREVENT OUTDOOR SMOKE AND FINE PARTICULATES FROM GETTING INSIDE.

FOR MORE INFORMATION ABOUT FINE PARTICULATES, PLEASE VISIT: HTTPS: FIRE.AIRNOW.GOV FOR MORE INFORMATION ABOUT WILDFIRES PRESCRIBED BURNS, PLEASE VISIT: HTTPS: WWW.SCFC.GOV
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COLUMBIA, RICHMOND, MCCORMICK, NEWBERRY, FAIRFIELD, KERSHAW, EDGEFIELD, SALUDA, LEXINGTON, RICHLAND, LEE, AIKEN, SUMTER, BARNWELL, CALHOUN, CLARENDON, BAMBERG, NORTHWESTERN ORANGEBURG, CENTRAL ORANGEBURG, SOUTHEASTERN ORANGEBURG
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Hazardous Weather Conditions

No active alerts for CHEVY CHASE, MARYLAND

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Clear

77.0 F

Humidity:41%
Wind Speed:W 10.3 mph
Barometer:29.92 in
Dewpoint:51.8 F
Visibility:10.00 mi
Precip:--
Heat Index:76.3 F
Wind Chill:NA
Apr 22 2026, 05:55 PM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Wednesday

High 75 °F
Scattered T-storms Likely
Wednesday
Night
Low 55 °F
Partly Cloudy

Thursday

High 80 °F
Mostly Sunny

Thursday
Night
Low 59 °F
Partly Cloudy

Friday

High 80 °F
Chance of T-storms

Friday
Night
Low 55 °F
Chance of Rain
Saturday

High 62 °F
T-storms


Saturday
Night
Low 48 °F
Rain

Sunday

High 64 °F
Rain Showers Likely

Observation History for CHEVY CHASE, MARYLAND


Time Wind
(mph)
Vis
(mi)
Weather Precip (in) Temperature (F) Relative
Humidity
Wind
Chill
(F)
Heat
Index
(F)
Pressure
Air Dwpt altimeter
(in)
sea level
(mb)
05:55 PM EDT W 10.3 10.00 Clear -- 77.0 51.8 41% NA 76.3 29.92 1013.2
05:35 PM EDT G 19.7 10.00 Partly Cloudy -- 77.0 51.8 41% NA 76.3 29.92 1013.2
05:15 PM EDT 11.4 G 18.3 10.00 Mostly Cloudy -- 77.0 53.6 44% NA 76.5 29.92 1013.2
04:55 PM EDT 5.8 10.00 Partly Cloudy -- 73.4 51.8 47% NA 72.7 29.92 1013.2
04:35 PM EDT S 10.3 10.00 Mostly Cloudy -- 75.2 53.6 47% NA 74.7 29.94 1013.6
04:15 PM EDT 8.1 10.00 Cloudy -- 73.4 51.8 47% NA 72.7 29.94 1013.6
03:55 PM EDT 9.2 10.00 Cloudy -- 73.4 51.8 47% NA 72.7 29.94 1013.6
03:35 PM EDT 6.9 10.00 NULL -- 73.4 51.8 47% NA 72.7 29.94 1013.9
03:15 PM EDT S 8.1 10.00 Partly Cloudy -- 77.0 51.8 41% NA 76.3 29.95 1014.2
02:55 PM EDT S 8.1 10.00 Clear -- 75.2 53.6 47% NA 74.7 29.96 1014.6
02:35 PM EDT 8.1 10.00 Clear -- 73.4 51.8 47% NA 72.7 29.97 1014.9
02:15 PM EDT S 8.1 10.00 Clear -- 71.6 51.8 50% NA 70.9 29.98 1015.2
01:55 PM EDT 6.9 10.00 Clear -- 69.8 50.0 49% NA NA 30.00 1015.9
01:35 PM EDT S 5.8 10.00 Clear -- 68.0 48.2 49% NA NA 30.01 1016.3
01:15 PM EDT 3.4 10.00 Clear -- 66.2 46.4 49% NA NA 30.01 1016.3
12:35 PM EDT 3.4 10.00 Partly Cloudy -- 62.6 46.4 55% NA NA 30.03 1016.9
12:15 PM EDT S 4.7 10.00 Partly Cloudy -- 62.6 46.4 55% NA NA 30.04 1017.3
11:55 AM EDT 4.7 10.00 Partly Cloudy -- NULL 46.4 % NA NA 30.04 1017.3
11:35 AM EDT 3.4 10.00 Partly Cloudy -- 59.0 46.4 63% NA NA 30.05 1017.6
11:15 AM EDT SE 4.7 10.00 Cloudy -- 55.4 46.4 72% NA NA 30.05 1017.6
10:35 AM EDT 0.0 10.00 Cloudy -- 55.4 42.8 62% NA NA 30.06 1018.0
10:15 AM EDT 0.0 10.00 Cloudy -- 53.6 42.8 67% NA NA 30.06 1018.0
09:55 AM EDT 0.0 10.00 Cloudy -- 53.6 42.8 67% NA NA 30.05 1017.6
09:35 AM EDT SW 3.4 10.00 Cloudy -- 53.6 42.8 67% NA NA 30.06 1018.0

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Clear
77.0 F

FREDERICK (KFDK)

Partly Cloudy
77.0 F

CARROLL CNTY (KDMW)

Partly Cloudy
75.2 F

NSF THURMONT (KRSP)

Partly Cloudy
69.1 F

WASH DC/DULLES (KIAD)

Mostly Cloudy
75.2 F

WASHINGTON/NATL (KDCA)

Mostly Clear
73.4 F
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