Radar
FLOOD WATCH
FLOOD WATCH ISSUED APRIL 17 AT 12:46PM CDT UNTIL APRIL 18 AT 4:00AM CDT
Effective: 2026-04-17 12:46:00 Local Time Expires: 2026-04-18 04:00:00 Local Time Issued by: NWS Quad Cities IA IL
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE. * WHERE...PORTIONS OF ILLINOIS, INCLUDING THE FOLLOWING AREAS, BUREAU, CARROLL, HANCOCK, HENDERSON, HENRY IL, JO DAVIESS, MCDONOUGH, MERCER, PUTNAM, ROCK ISLAND, STEPHENSON, WARREN AND WHITESIDE, IOWA, INCLUDING THE FOLLOWING AREAS, BUCHANAN, CEDAR, CLINTON, DELAWARE, DES MOINES, DUBUQUE, HENRY IA, JACKSON, JOHNSON, JONES, LEE, LINN, LOUISA, MUSCATINE, SCOTT AND WASHINGTON, AND NORTHEAST MISSOURI, INCLUDING THE FOLLOWING AREA, CLARK.

* WHEN...THROUGH LATE TONIGHT.

* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS, CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS. LOW-WATER CROSSINGS MAY BE FLOODED. AREA CREEKS AND STREAMS ARE RUNNING HIGH AND COULD FLOOD WITH MORE HEAVY RAIN.

* ADDITIONAL DETAILS... - RECENT ROUNDS OF HEAVY RAIN HAVE RESULTED IN SATURATED SOILS NORTH OF INTERSTATE 80. SOUTH OF INTERSTATE 80, SOILS ARE QUITE MOIST.
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BUCHANAN, DELAWARE, DUBUQUE, LINN, JONES, JACKSON, JOHNSON, CEDAR, CLINTON, MUSCATINE, SCOTT, WASHINGTON, LOUISA, HENRY, DES MOINES, LEE, JO DAVIESS, STEPHENSON, CARROLL, WHITESIDE, ROCK ISLAND, HENRY, BUREAU, PUTNAM, MERCER, HENDERSON, WARREN, HANCOCK, MCDONOUGH, CLARK
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Hazardous Weather Conditions

No active alerts for CHEVY CHASE, MARYLAND

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Clear

57.2 F

Humidity:88%
Wind Speed: 0.0 mph
Barometer:30.01 in
Dewpoint:53.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 18 2026, 02:35 AM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Saturday

High 84 °F
Partly Sunny

Saturday
Night
Low 53 °F
Rain

Sunday

High 60 °F
Rain Showers Likely
Sunday
Night
Low 41 °F
Showers Likely
Monday

High 55 °F
Partly Sunny

Monday
Night
Low 37 °F
Mostly Clear

Tuesday

High 64 °F
Mostly Sunny

Tuesday
Night
Low 51 °F
Partly Cloudy

Wednesday

High 77 °F
Isolated T-storm


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)
02:35 AM EDT 0.0 10.00 Clear -- 57.2 53.6 88% NA NA 30.01 1016.3
02:15 AM EDT 0.0 10.00 Clear -- 59.0 53.6 82% NA NA 30.01 1016.3
01:55 AM EDT 0.0 10.00 Clear -- 59.0 53.6 82% NA NA 30.02 1016.6
01:35 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.02 1016.6
01:15 AM EDT 0.0 10.00 Clear -- 57.2 53.6 88% NA NA 30.01 1016.3
12:55 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.00 1015.9
12:35 AM EDT 0.0 10.00 Clear -- 59.0 55.4 88% NA NA 30.00 1015.9
12:15 AM EDT 0.0 10.00 NULL -- 60.8 55.4 82% NA NA 30.00 1015.9
11:55 PM EDT 0.0 10.00 Clear -- 60.8 55.4 82% NA NA 29.99 1015.6
11:35 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
11:15 PM EDT 0.0 10.00 Clear -- 64.4 55.4 73% NA NA 29.99 1015.6
10:55 PM EDT 3.4 10.00 Clear -- 64.4 55.4 73% NA NA 29.99 1015.6
10:35 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
10:15 PM EDT 0.0 10.00 Clear -- 62.6 55.4 77% NA NA 29.98 1015.2
09:55 PM EDT 0.0 10.00 Clear -- 66.2 55.4 68% NA NA 29.97 1014.9
09:35 PM EDT 0.0 10.00 Clear -- 64.4 55.4 73% NA NA 29.97 1014.9
09:15 PM EDT 0.0 10.00 NULL -- 68.0 55.4 64% NA NA 29.97 1014.9
08:55 PM EDT 0.0 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.97 1014.9
08:35 PM EDT NE 3.4 10.00 Clear -- 71.6 55.4 57% NA 71.1 29.96 1014.6
08:15 PM EDT NE 3.4 10.00 Clear -- 73.4 53.6 50% NA 72.9 29.95 1014.2
07:55 PM EDT NE 3.4 10.00 Clear -- 73.4 53.6 50% NA 72.9 29.96 1014.6
07:35 PM EDT 3.4 10.00 Clear -- 75.2 53.6 47% NA 74.7 29.96 1014.6
07:15 PM EDT 6.9 10.00 Clear -- 77.0 53.6 44% NA 76.5 29.95 1014.2
06:35 PM EDT 6.9 10.00 Clear -- 77.0 55.4 47% NA 76.6 29.95 1014.2

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Clear
57.2 F

FREDERICK (KFDK)

Clear
55.2 F

CARROLL CNTY (KDMW)

Clear
62.6 F

NSF THURMONT (KRSP)

Clear
63.0 F

WASH DC/DULLES (KIAD)

NULL
55.4 F

WASHINGTON/NATL (KDCA)

Clear
62.6 F
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