Radar
« Active Alerts
EXPIRED / ARCHIVED — This alert is no longer active and is maintained for historical record only. For current alerts, use the search above or visit Active Alerts.
FLOOD WARNING
FLOOD WARNING ISSUED APRIL 18 AT 1:32AM CDT
Effective: 2026-04-18 01:32:00 Local Time [EXPIRED] Expires: 2026-04-18 19:45:00 Local Time Issued by: NWS Chicago IL
Alert Text
...FORECAST FLOODING CHANGED FROM MODERATE TO MAJOR SEVERITY FOR THEFOLLOWING RIVERS IN ILLINOIS...

DES PLAINES RIVER AT LINCOLNSHIRE AFFECTING LAKE IL AND COOK COUNTIES.

FOR THE DES PLAINES RIVER...INCLUDING LINCOLNSHIRE...MAJOR FLOODING IS FORECAST.

* WHAT...MODERATE FLOODING IS OCCURRING AND MAJOR FLOODING IS FORECAST.

* WHERE...DES PLAINES RIVER FROM TOWNLINE ROAD IN LIBERTYVILLE DOWNSTREAM TO PALATINE ROAD IN PROSPECT HEIGHTS, INCLUDING THE LINCOLNSHIRE GAUGE.

* WHEN...UNTIL FURTHER NOTICE.

* IMPACTS...AT 15.0 FEET, STRUCTURES THREATENED ALONG IL-22 (HALF-DAY ROAD) JUST EAST OF THE RIVER. MULTIPLE STRUCTURES THREATENED NEAR AND WEST OF US-45 (MILWAUKEE AVENUE) AND DEERFIELD ROAD. DEERFIELD ROAD THREATENED NEAR THE RIVER. MULTIPLE TRAILS INUNDATED IN HALF-DAY FOREST PRESERVE.

* ADDITIONAL DETAILS... - AT 12:45 AM CDT SATURDAY THE STAGE WAS 14.1 FEET. - RECENT ACTIVITY...RECENT RAINFALL CAUSED THE RIVER LEVEL TO RISE QUICKLY FROM 13.6 FEET THIS AFTERNOON TO NOW OVER 14 FEET. - FORECAST...THE RIVER IS EXPECTED TO RISE TO A CREST NEAR 15.5 FEET LATE SATURDAY. IT WILL THEN GRADUALLY FALL THROUGH THE EARLY PART OF NEXT WEEK. - FLOOD STAGE IS 12.5 FEET. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD
More Information
View Storm Reports Map — Know the difference between Watch, Warning, Advisory
Target Area
COOK, IL, LAKE, IL

This alert has expired and is maintained in our database for historical record only. For current active alerts please use the search box at the top of this page.
🔔 Sign-up to receive real-time severe weather alerts via email or text — subscribe

Storm Reports

Loading...

Local Time ▼ Location ⇅ Event ⇅ Detail Source ⇅
Loading reports...
Sign-up to receive real-time storm reports via email or text — subscribe

Storm report data provided by WxData.com

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
Severe Weather Alerts
Severe Weather
 		Daily Weather Forecast
Daily Forecast
 		Storm Report Monitoring
Storm Reports

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
Sign-up to receive daily weather forecasts by email or text — subscribe