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FLOOD WARNING
FLOOD WARNING ISSUED APRIL 21 AT 8:56PM CDT
Effective: 2026-04-21 20:56:00 Local Time Expires: 2026-04-22 13:00:00 Local Time Issued by: NWS Lincoln IL
Alert Text
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS INILLINOIS...

ILLINOIS RIVER NEAR HAVANA AFFECTING FULTON, CASS AND MASON COUNTIES.

ILLINOIS RIVER AT BEARDSTOWN AFFECTING BROWN, MORGAN, SCHUYLER AND CASS COUNTIES.

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN ILLINOIS...

ILLINOIS RIVER AT PEORIA AFFECTING PEORIA, TAZEWELL AND WOODFORD COUNTIES.

.THE FOLLOWING FORECASTS ARE BASED ON OBSERVED PRECIPITATION, SOIL MOISTURE CONDITIONS, AND FORECAST PRECIPITATION.

* WHAT...MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.

* WHERE...ILLINOIS RIVER NEAR HAVANA.

* WHEN...UNTIL FURTHER NOTICE.

* ADDITIONAL DETAILS... - AT 8:45 PM CDT TUESDAY THE STAGE WAS 16.5 FEET. - RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING AT 8:45 PM CDT TUESDAY WAS 16.5 FEET. - FORECAST...THE RIVER IS EXPECTED TO RISE TO A CREST OF 16.7 FEET EARLY THURSDAY AFTERNOON. - FLOOD STAGE IS 14.0 FEET. - HTTP: WWW.WEATHER.GOV SAFETY FLOOD
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Target Area
CASS, IL, FULTON, IL, MASON, IL
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Hazardous Weather Conditions

No active alerts for CHEVY CHASE, MARYLAND

Current Conditions: CHEVY CHASE, MARYLAND

LEESBURG/GODFREY (KJYO)

Mostly Cloudy

51.8 F
Humidity:67%
Wind Speed: 0.0 mph
Barometer:30.06 in
Dewpoint:41.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 08:35 AM EDT
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5 Day Forecast for CHEVY CHASE, MARYLAND (20815)

Wednesday

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

High 80 °F
Partly Sunny
Thursday
Night
Low 57 °F
Partly Cloudy
Friday

High 78 °F
Chance of T-storms
Friday
Night
Low 53 °F
Chance of T-storms
Saturday

High 62 °F
T-storms Likely
Saturday
Night
Low 48 °F
Rain
Sunday

High 62 °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)
08:35 AM EDT 0.0 10.00 Mostly Cloudy -- 51.8 41.0 67% NA NA 30.06 1018.0
08:15 AM EDT 0.0 10.00 Mostly Cloudy -- 50.0 41.0 71% NA NA 30.06 1018.0
07:55 AM EDT 0.0 10.00 Partly Cloudy -- 50.0 39.2 66% NA NA 30.05 1017.6
07:35 AM EDT 0.0 10.00 Clear -- 50.0 37.4 62% NA NA 30.05 1017.6
07:15 AM EDT 0.0 10.00 Clear -- 50.0 39.2 66% NA NA 30.05 1017.6
06:55 AM EDT 0.0 10.00 Clear -- 50.0 37.4 62% NA NA 30.05 1017.6
06:35 AM EDT 4.7 10.00 Clear -- 50.0 37.4 62% NA NA 30.05 1017.6
06:15 AM EDT S 6.9 10.00 Clear -- 50.0 37.4 62% NA NA 30.05 1017.6
05:55 AM EDT S 5.8 10.00 Clear -- 50.0 37.4 62% NA NA 30.05 1017.6
05:35 AM EDT S 5.8 10.00 Clear -- 50.0 35.6 58% NA NA 30.05 1017.6
05:15 AM EDT S 5.8 10.00 Clear -- 50.0 35.6 58% NA NA 30.05 1017.6
04:55 AM EDT S 9.2 10.00 Clear -- 50.0 35.6 58% NA NA 30.05 1017.6
04:35 AM EDT S 8.1 10.00 Clear -- 50.0 35.6 58% NA NA 30.06 1018.0
04:15 AM EDT S 8.1 10.00 Clear -- 50.0 35.6 58% NA NA 30.07 1018.3
03:55 AM EDT S 8.1 10.00 Clear -- 50.0 35.6 58% NA NA 30.08 1018.6
03:35 AM EDT S 8.1 10.00 Clear -- 50.0 35.6 58% NA NA 30.08 1018.6
03:15 AM EDT S 8.1 10.00 Clear -- 50.0 35.6 58% NA NA 30.08 1018.6
02:55 AM EDT S 8.1 10.00 Clear -- 50.0 35.6 58% NA NA 30.09 1019.0
02:35 AM EDT S 6.9 10.00 Clear -- 50.0 35.6 58% NA NA 30.10 1019.3
02:15 AM EDT S 6.9 10.00 Clear -- 50.0 37.4 62% NA NA 30.10 1019.3
01:35 AM EDT 4.7 10.00 Clear -- 51.8 37.4 58% NA NA 30.13 1020.3
01:15 AM EDT 3.4 10.00 Clear -- 51.8 37.4 58% NA NA 30.14 1020.7
12:55 AM EDT 3.4 10.00 Clear -- 51.8 37.4 58% NA NA 30.15 1021.0
12:35 AM EDT S 3.4 10.00 Clear -- 51.8 37.4 58% NA NA 30.15 1021.0

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Mostly Cloudy
51.8 F

FREDERICK (KFDK)

Cloudy
44.6 F

CARROLL CNTY (KDMW)

Cloudy
53.6 F

NSF THURMONT (KRSP)

Partly Cloudy
53.1 F

WASH DC/DULLES (KIAD)

Mostly Clear
53.6 F

WASHINGTON/NATL (KDCA)

Clear
55.4 F
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