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Carroll Co.
 Details for Carroll Co. Severe Thunderstorm Watch  +2 additional alerts
 Montgomery Co.
 Details for Montgomery Co. Severe Thunderstorm Watch  +1 additional alert
 Prince Georges Co.
 Details for Prince Georges Co. Severe Thunderstorm Watch  +1 additional alert
 Frederick Co.
 Details for Frederick Co. Severe Thunderstorm Watch
 Howard Co.
 Details for Howard Co. Severe Thunderstorm Watch
 Anne Arundel Co.
 Details for Anne Arundel Co. Coastal Flood Advisory

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Severe Thunderstorm Watch SEVERE THUNDERSTORM WATCH - Carroll Co.  - Frederick Co.  - Howard Co.  - Montgomery Co.  - Prince Georges Co.
Coastal Flood Advisory COASTAL FLOOD ADVISORY - Anne Arundel Co.
Flood Watch FLOOD WATCH - Carroll Co.  - Montgomery Co.  - Prince Georges Co.
Test Message TEST MESSAGE - Carroll Co.

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Radar Legend
Bless America
Evening OBSERVATIONS: Its evening,overcast/humid and it feels warm outside. The temperature has been rising for the last few hours. There is a calm from the east south east. Visibility is about 10 miles. The sky is cloudy. The barometer has been steady over the last hour.
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Updated: 16-Aug-2026 @ 7:27pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 0.5°F than last hour.

77.2°F

Warm
High Today
77.9°F
18:35 		Low Today
73.0°F
14:14
Yest High
93.0°F
16:45 		Yest Low
70.1°F
05:16
Station High
100.0°F
2003* 		Station Low
55.1°F
2013*
BWI High
101.0°F
1997 		BWI Low
53.0°F
2013
* This Station's Records Since 8/2004
Overcast, Humid Overcast, Humid

Wind from ESE Wind:  ESE
0.0
Gusting to:
 1.1 mph
Current Rain Rain:
0.07 in
Fire Weather Index: MINIMAL Current FWI:4
Fire Danger:
1.7 of 232
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms
Monday

Monday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
Monday
Night
Monday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Lo 71 °F Hi 89 °F Lo 70 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.2°F since last hour. 72.3°F
Last Hour: Increased 0.2°F since last hour. +0.2°F
High 11:04: 72.6°F
Low 00:12: 67.0°F
Record High: 87.6°F on
16-Aug-2017
Record Low: -34.2°F on
17-Nov-2005
Wetbulb: 73.9°F
Today: 0.07 in
Storm Rain: 0.07 in
Yesterday: 0.00 in
Last 7 Days: 0.31 in
Aug Rain: 2.21 in
Aug to Date
  Avg:10 		0.01 in
Aug to Date
  Diff from Avg:10 		Over 2.2 in for the month 2.20 in
Aug Avg: 4.47 in
Diff from Avg: Under 2.26 in for the month 2.26 in
Season:1 16.64 in
YTD
  Avg:11 		23.24 in
YTD
  Diff from Avg:11 		Under 6.6 in for the year 6.60 in
Last Rain
Time/Date: 		16-Aug-2026
at 14:39
93 rain days in 2026
7 days in August
0 days since last rain
Current: ESE  0.0 mph
1Hr Average: 1.6 mph
Wind Run: 21.31 miles
Wind Gust
Current: 1.1 mph
Today: 17.3 mph 13:26
Month: 42.6 mph 10-Aug
Year: 59.8 mph 1-Apr
Record Gust: 92.0 mph
19-Sep-2003
Sunlight:
13 h 45 m 6 s
of Sunlight Yesterday
13 h 42 m 50 s
of Sunlight Today Which is
2 min 16 sec shorter than
yesterday
13 h 40 m 34 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)

Waxing Crescent
Waxing Crescent, 4 days, 5 hours, 55 minutes in cycle
19%
Illuminated
Humidity Barometer
Current: Increased 2% since last hour. 85%
Last Hour: Increased 2% since last hour. 2%
High 14:46: 89%
Low 00:00: 78%
Record High: 100%
29-Sep-2005
Record Low: 0%
17-Aug-2023
Current: Falling 0.7 inHg/hr 1011.4 inHg
Last Hour: Steady
High 00:08: 1018.8
Low 19:17: 1011.4
Record High: 1046.1 inHg
14-Dec-2024
Record Low: 963.4 inHg
29-Oct-2012
Cooling Degree Days Lightning Strikes Heat Index Air
Today: 8.1
Aug: 239.2
2026 to Date: 1223.2
Heating Degree Days
2026 to Date: 2705.0
Last Min: 2
Last 5 Mins: 19
Last 30 Mins: 90
Last 60 Mins: 117
Last 12 Hrs: 160
Aug: 34315
2026 to Date: 174586
Last
Strike:		 19:26:45
16-Aug-2026
Current: 78.8°F
High 6:35pm: 77.9°F
Yesterday: 99.7°F
Record: 138.9°F
3-Nov-2019
Quality Index:6
53

Moderate

Davis AirLink Sensor
Quality Index:12
47.4

    Good Air Quality    
Particulate Matter Concentration mcg/m3
PM1.0: 7.5    PM2.5: 11.4    PM10: 13.0
Current UV Index Current Solar Energy9
0.0
Sunburn in
720 Minutes 		Highest:
11:51
2.1
16 W/m2
21%
W/m2 ⇒ SI 		High Today:
11:52
 388  W/m2
Record:
1517 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Evening
YTD Avg Temp: 58.5°F
Sunrise: 06:20
Sunset: 20:02
Moonrise: 10:37
Moonset: 21:23
Full Moon: 28-Aug-2026
New Moon: 03:28 UTC
10-Sep-2026
Updated at Midnight
Current ET: 0.06 in
7-Days Rain: 0.31 in
7-Days ET: 1.45 in
7-Day: 1.143 in water in deficit of what evaporated in last 7 days. 1.143 in
August: 0.74 in water in deficit of what evaporated this month. 0.74 in
HIGHS: LOWS:
106.2°F
4-Jul-2026 		-0.0°F
1-Mar-2011
Daytime Records
  105.4°F
04-Jul-2026 		  0.5°F
23-Nov-2019
Nitetime Records
  90.3°F
08-Jul-2012 		  -0.0°F
01-Mar-2018
ICN:18 | S3C2:4 | Ajax 3.xx
ISS:Ok | CON:4.7V | RCP:100%
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured and updated as required.   4 Updated at Noon Eastern Standard Time.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index for Metro Balto, MD (9) is provided by AirNow and is updated hourly between the hours of 6AM and Midnight.   9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.   10 Historical average only to day 16 of just the month of August for this station since 2005.   11 Historical average rain this season to day 16 of August for this station since 2005.   12 Data from Davis AirLink AQ Sensor located at Halethorpe Weather-Watch.   13 NWS Zone Forecast (MDZ011).   14 NWS County Forecast (MDC005).  
 NWS Weather Forecast  -   Outlook Tonight & Monday
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms

Lo 71 °F 		NWS zone forecast:13 Showers and thunderstorms before 4am. Mostly cloudy, with a low around 71. South wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
 NWS county forecast:14 Showers. Thunderstorms likely, mainly this evening. Lows in the lower 70s. South winds 10 to 15 mph, becoming southwest 5 to 10 mph after midnight. Chance of rain near100 percent. Monday

Monday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms

Hi 89 °F 		NWS forecast:13 A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. West wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
 NWS Short Term Weather Forecast
Monday
Night
Monday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday

Thursday: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Lo 70 °F Hi 87 °F Lo 68 °F Hi 89 °F Lo 71 °F Hi 86 °F Lo 67 °F
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