Storms To End Heat Wave: Baltimore County Weather

BALTIMORE COUNTY, MD — For the third day in a row, temperatures may feel like they are in the triple digits. Due to the sweltering conditions, the National Weather Service issued an excessive heat warning for most of Maryland, including Baltimore County.

There's a chance of showers and thunderstorms Sunday night, and then heavy rain Monday will finally break the heat.

First, the excessive heat warning takes effect from 11 a.m. to 9 p.m. on Sunday, July 21, calling for dangerously high temperatures and humidity that could lead to heat stress or heat stroke.

The excessive heat warning says temperatures may reach 110 degrees on the heat index, which is what it will feel like outside due to humidity. Actual temps will range from the high 90s to 100.

It will be hottest in Baltimore County around 2 p.m., when the heat index is expected to hit 109 degrees and it will be 97 degrees outside, according to the National Weather Service forecast.

Here is a look at the hour-by-hour forecast in Baltimore County for Sunday, July 21:

• 11 a.m. — 92 degrees, feels like 103
• 12 p.m. — 94 degrees, feels like 105
• 1 p.m. — 96 degrees, feels like 107
• 2 p.m. — 97 degrees, feels like 109
• 3 p.m. — 97 degrees, feels like 107
• 4 p.m. — 96 degrees, feels like 107
• 5 p.m. — 96 degrees, feels like 106
• 6 p.m. — 94 degrees, feels like 103
• 7 p.m. — 92 degrees, feels like 101
• 8 p.m. — 89 degrees, feels like 97
• 9 p.m. — 87 degrees, feels like 95
• 10 p.m. — 84 degrees, feels like 91
• 11 p.m. — 83 degrees, feels like 90

During the excessive heat warning period Sunday, people should take precautions like wearing lightweight clothing, drinking water, rescheduling strenuous activities to the early morning or evening and taking frequent breaks in the shade or air-conditioning if working outside; and they should not leave children or pets alone in hot cars for any amount of time.

Where To Cool Off: Cooling Centers

Those looking to find air conditioning in Baltimore County can head to the nearest library branch, which will open as cooling centers as temperatures rise across the region.

There are 19 library branches across the county open from 1 to 5 p.m. on Sunday.

• Arbutus: 855 Sulphur Spring Road, Arbutus, MD 21227
• Catonsville: 1100 Frederick Road, Catonsville, MD 21228
• Cockeysville: 9833 Greenside Drive, Cockeysville, MD 21030
• Essex: 1110 Eastern Boulevard, Essex, MD 21221
• Hereford: 16940 York Road, Hereford, MD 21111
• Lansdowne: 500 Third Avenue, Lansdowne, MD 21227
• Loch Raven: 1046 Taylor Avenue, Towson, MD 21286
• North Point: 1716 Merritt Boulevard, Dundalk, MD 21222
• Owings Mills: 10302 Grand Central Avenue, Owings Mills, MD 21117
• Parkville-Carney: 9509 Harford Road, Parkville, MD 21234
• Perry Hall: 9685 Honeygo Boulevard, Perry Hall, MD 21128
• Pikesville: 1301 Reisterstown Road, Pikesville, MD 21208
• Randallstown: 8604 Liberty Road, Randallstown, MD 21133
• Reisterstown: 21 Cockeys Mill Road, Reisterstown, MD 21136
• Rosedale: 6105 Kenwood Avenue, Rosedale, MD 21237
• Sollers Point: 323 Sollers Point Road, Dundalk, MD 21222
• Towson: 320 York Road, Towson, MD 21204
• White Marsh: 8133 Sandpiper Circle, Baltimore, MD 21236
• Woodlawn: 1811 Woodlawn Drive, Woodlawn, MD 21207

Forecast For Baltimore County

Storms expected Sunday night and Monday prompted the National Weather Service to issue a hazardous weather outlook for the region. Strong wind gusts could cause damage, and heavy rain may lead to flooding, according to the National Weather Service.

Sunday: Mostly sunny and hot, with a high near 97. Heat index values as high as 109. Scattered showers and thunderstorms after 5 p.m. Chance of precipitation is 30%. Low around 76.

Monday: High near 88, and low of 68. A chance of showers and thunderstorms that could produce heavy rain. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Tuesday: Mostly cloudy, with a high near 81 and low of 64. A chance of showers, mainly before noon. Chance of precipitation is 50%.

Wednesday: Mostly sunny, with a high near 82 and low near 64.

Thursday: Sunny, with a high near 84 and low near 66.

Friday: Sunny, with a high near 86 and low around 68.

Saturday: Sunny, with a high near 87.