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FLOOD WARNING
FLOOD WARNING ISSUED APRIL 19 AT 10:02PM CDT UNTIL APRIL 20 AT 7:00PM CDT
Effective: 2026-04-19 22:02:00 Local Time Expires: 2026-04-20 19:00:00 Local Time Issued by: NWS Chicago IL
Alert Text
...THE NATIONAL WEATHER SERVICE IN CHICAGO IL HAS ISSUED A FLOODWARNING FOR THE FOLLOWING RIVERS IN ILLINOIS...

ROCK RIVER AT DIXON AFFECTING OGLE AND LEE COUNTIES.

FOR THE ROCK RIVER...INCLUDING DIXON...MINOR FLOODING IS FORECAST.

* WHAT...MINOR FLOODING IS FORECASTED.

* WHERE...ROCK RIVER FROM CASTLE ROCK STATE PARK NEAR OREGON DOWNSTREAM TO LEE COUNTY LINE, INCLUDING THE DIXON GAUGE.

* WHEN...FROM MONDAY MORNING TO TOMORROW EVENING.

* IMPACTS...AT 16.0 FEET, N CANAL DRIVE THREATENED IN WOODLAND SHORES. WATER OVERFLOWS LOW-LYING BANKS ALONG WEST FIRST STREET IN DIXON. RESIDENTIAL PROPERTY THREATENED NEAR SHERMAN AVENUE AND RIVER STREET IN DIXON.

* ADDITIONAL DETAILS... - AT 9:15 PM CDT SUNDAY THE STAGE WAS 15.9 FEET. - FORECAST...THE RIVER IS EXPECTED TO RISE TO A CREST OF 16.0 FEET TOMORROW MORNING. IT WILL THEN FALL BELOW FLOOD STAGE EARLY TOMORROW AFTERNOON. - FLOOD STAGE IS 16.0 FEET. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD
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LEE, IL, OGLE, IL
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Hazardous Weather Conditions

Freeze Watch issued April 18 at 11:59PM EDT until April 21 at 10:00AM EDT
Freeze Watch issued April 19 at 8:38AM EDT until April 21 at 10:00AM EDT
Freeze Watch issued April 19 at 1:20PM EDT until April 21 at 10:00AM EDT
Freeze Watch issued April 19 at 9:13PM EDT until April 21 at 10:00AM EDT
Freeze Warning issued April 19 at 11:35PM EDT until April 21 at 10:00AM EDT

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Mostly Cloudy

44.6 F
Humidity:70%
Wind Speed:W 6.9 mph
Barometer:30.16 in
Dewpoint:35.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:40.6 F
Apr 20 2026, 05:35 AM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Monday

High 55 °F
Slight Chance of Rain Showers
Monday
Night
Low 32 °F
Mostly Clear
Tuesday

High 62 °F
Mostly Sunny
Tuesday
Night
Low 50 °F
Chance of Rain
Wednesday

High 73 °F
T-storms Likely
Wednesday
Night
Low 51 °F
Partly Cloudy
Thursday

High 78 °F
Mostly Sunny
Thursday
Night
Low 57 °F
Partly Cloudy
Friday

High 82 °F
Mostly Sunny

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)
05:35 AM EDT W 6.9 10.00 Mostly Cloudy -- 44.6 35.6 70% 40.6 NA 30.16 1021.3
05:15 AM EDT 6.9 10.00 Cloudy -- 44.6 35.6 70% 40.6 NA 30.15 1021.0
04:55 AM EDT W 10.3 10.00 Cloudy -- 46.4 35.6 66% 41.5 NA 30.15 1021.0
04:35 AM EDT W 11.4 G 18.3 10.00 Cloudy -- 46.4 35.6 66% 41.0 NA 30.16 1021.3
04:15 AM EDT G 24.2 10.00 Light Drizzle -- 46.4 35.6 66% NA NA 30.16 1021.3
03:55 AM EDT G 28.9 10.00 Light Rain -- 46.4 35.6 66% NA NA 30.15 1021.0
03:35 AM EDT 9.2 10.00 Cloudy -- 44.6 35.6 70% 39.7 NA 30.15 1021.0
03:15 AM EDT NW 3.4 10.00 Cloudy -- 44.6 35.6 70% 43.2 NA 30.15 1021.0
02:55 AM EDT 0.0 10.00 Cloudy -- 42.8 35.6 76% NA NA 30.14 1020.7
02:35 AM EDT 0.0 10.00 Cloudy -- 42.8 35.6 76% NA NA 30.15 1021.0
02:15 AM EDT 0.0 10.00 Cloudy -- 42.8 37.4 81% NA NA 30.16 1021.3
01:55 AM EDT 0.0 10.00 Cloudy -- 42.8 35.6 76% NA NA 30.15 1021.0
01:35 AM EDT 0.0 10.00 Mostly Cloudy -- 42.8 33.8 70% NA NA 30.16 1021.3
01:15 AM EDT 0.0 10.00 Mostly Cloudy -- 42.8 33.8 70% NA NA 30.15 1021.0
12:55 AM EDT 0.0 10.00 Cloudy -- 42.8 35.6 76% NA NA 30.16 1021.3
12:35 AM EDT W 3.4 10.00 Cloudy -- 41.0 35.6 81% 39.0 NA 30.16 1021.3
12:15 AM EDT 0.0 10.00 Cloudy -- 41.0 33.8 75% NA NA 30.15 1021.0
11:55 PM EDT 0.0 10.00 Mostly Cloudy -- 41.0 33.8 75% NA NA 30.15 1021.0
11:35 PM EDT 0.0 10.00 Partly Cloudy -- 37.4 33.8 87% NA NA 30.15 1021.0
11:15 PM EDT 0.0 10.00 Clear -- 41.0 33.8 75% NA NA 30.15 1021.0
10:55 PM EDT 0.0 10.00 Clear -- 41.0 32.0 70% NA NA 30.15 1021.0
10:35 PM EDT 0.0 10.00 Clear -- 42.8 32.0 65% NA NA 30.14 1020.7
10:15 PM EDT 0.0 10.00 Clear -- 44.6 32.0 61% NA NA 30.14 1020.7
09:55 PM EDT 0.0 10.00 Clear -- 44.6 30.2 57% NA NA 30.13 1020.3

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Mostly Cloudy
44.6 F

FREDERICK (KFDK)

Mostly Clear
38.3 F

CARROLL CNTY (KDMW)

Clear
42.8 F

NSF THURMONT (KRSP)

Mostly Cloudy
39.0 F

WASH DC/DULLES (KIAD)

Mostly Cloudy
46.4 F

WASHINGTON/NATL (KDCA)

Cloudy
48.2 F
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