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Grasonville, MD Weather

Updated: Mon Jul 13th 2026 9:00 AM EDT

Sunny

77^°F 25^°C

Feels Like 80^°F / 27^°C

Grasonville, MD weather condition is Sunny and 77°F.

Today's Weather in Grasonville,MD

The current weather in Grasonville MD as of 9:00 AM EDT on Mon Jul 13th 2026, has a sky condition of Sunny with the visibility of 9 mile(s) and the UV index at 2.5. It is 77 degrees fahrenheit but feels like 80 degrees with a forecasted high of 90 and low of 65. The barometric pressure is 30.24 - measured by inches of mercury - and is rising since its last observation. The humidity is 66 percent that's falling since the last report, with a dew point of 66 degrees fahrenheit which is rising. Wind direction is from the East at 8.1 miles per hour, gusting at 10.4 miles per hour. Sunrise was at 5:50 AM and Sunset is at 8:30 PM. The moon phase is a New Moon moon rising at 4:08 AM with 0% illumination. Thank you for listening to the weather report from LocalConditions.com!

Listen to this weather report - press Read

Barometer 30.24 inHg. rising
Humidity 66% falling
Heat Index 79°F
Wind from E. 8.1 mph
Wind Gust 10.4 miles per hour
Wind Chill 77°F
UV Index 2.5

Dew Point 66°F rising
Visibility 9 mi.
Sunrise 5:50 AM
Sunset 8:30 PM
Moonrise 4:08 AM
Moonset 8:06 PM
Moon Phase New Moon Moon 0%

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Sunny

Sunny with a high of 90°F and a low of 65°F. 4%% possible chance of rain predicted. Winds will be moderate, blowing around 13mph. The humidity will be on the higher side, reaching around 62%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 90° \| Lo 65°	62%	4%	0%	12.5 mph

Sunny

Sunny with a high of 83°F and a low of 71°F. 3%% possible chance of rain predicted. Winds will be moderate, blowing around 17mph. Humidity levels are comfortable, sitting around 59%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 83° \| Lo 71°	59%	3%	0%	16.1 mph

Sunny

Sunny with a high of 92°F and a low of 74°F. 4%% possible chance of rain predicted. Winds will be moderate, blowing around 17mph. The humidity will be on the higher side, reaching around 61%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 92° \| Lo 74°	61%	4%	0%	16.3 mph

Sunny

Sunny with a high of 90°F and a low of 80°F. 17%% possible chance of rain predicted with an estimated 0.01in. Winds will be moderate, blowing around 16mph. The humidity will be on the higher side, reaching around 62%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 90° \| Lo 80°	62%	17% \| est. 0.01in	0%	15.9 mph

Sunny

Sunny with a high of 85°F and a low of 71°F. 3%% possible chance of rain predicted. Winds will be moderate, blowing around 15mph. Humidity levels are comfortable, sitting around 51%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 85° \| Lo 71°	51%	3%	0%	14.3 mph

Yesterday 5-Day 10-Day

Weather Radar Map

Live Grasonville, MD weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Friday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 77^°F. The morning temperature of 65°^F is lowest at 6am with the daytime high of 90°^F at 2pm and a low around 72°^F at 11pm is expected.

Hourly Barometric Pressure

The highest pressure today is 30.24^inHg at 9am and lowest being 30.15^inHg at 4pm.

Hourly Wind Speeds

The fastest wind is reported to be 12.5^mph at 8pm, while the slowest is 6.5^mph around 1pm; expect wind gusts peaking 19.7^mph at 8pm.

More Weather Charts

Current National Weather

Record Heat Across Great Basin to Northern Plains 07-12 to 07-14

Updated Sun Jul 12th 2026, 6:02am PDT

This weekend brings extreme heat across the Great Basin and Northern Plains with potential record highs. The heatwave reaches its peak today with some areas like Salt Lake City, UT and Billings, MT potentially hitting all-time highs. Meanwhile, heavy rain from the southern Appalachians to the Carolinas may shift to the central Gulf Coast and central Texas early next week. Stay alert for flash flooding risks.

Extreme Heat Alert

Residents in the Great Basin to Northern Plains should prepare for scorching temperatures today, with some areas expecting to break records. Stay cool and hydrated, and try to limit outdoor activities. A cold front will start to bring relief later today as cooler air moves from the Pacific Northwest into Montana, though Northern Plains will still experience high temperatures into early this week.

Rain and Flooding Alerts

Sunday: The southern Appalachians to Carolinas will see ongoing showers and thunderstorms, raising concerns for flash flooding. Heavy rains could bring quick downpours along this corridor.

Monday to Tuesday: The focus shifts to the central Gulf Coast and central Texas. Expect heavy rain as moisture persists along a stationary front. Watch for flash flooding.

In the southeast, scattered heavy showers will lessen the flash flood risk on Monday, but potential remains. In southern Arizona and New Mexico, monsoonal thunderstorms may cause some flash flooding.

This weather report is valid for ZIP code 21638, accurately covering the area of Grasonville, MD.