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As of 04:39 EDT

Weather in Grantsville, MD

66°Current weather

Grantsville, Sunday, 9 August, 04:39

Rain. Feels like 66°. High 81°, low 65°.

Pressure30.06 inHg
Wind4.9 mph W
Humidity96%
Visibility6.2 mi
Dew point64°
Mon, 1083° / 63°0.02Light rain
83 °Light rain

Grantsville, Monday, 10 August

Light rain. High 83°, low 63°.

Pressure30.03 inHg
Wind10.8 mph SW
Humidity66%
Visibility6.2 mi
Dew point64°
Tue, 1180° / 62°1.15Heavy rain
80 °Heavy rain

Grantsville, Tuesday, 11 August

Heavy rain. High 80°, low 62°.

Pressure30.00 inHg
Wind10.6 mph W
Humidity83%
Visibility6.2 mi
Dew point64°
Wed, 1273° / 62°0.11Rain
73 °Rain

Grantsville, Wednesday, 12 August

Rain. High 73°, low 62°.

Pressure29.83 inHg
Wind13.2 mph W
Humidity73%
Visibility6.2 mi
Dew point66°
Thu, 1374° / 57°0.01Light rain
74 °Light rain

Grantsville, Thursday, 13 August

Light rain. High 74°, low 57°.

Pressure29.91 inHg
Wind14.1 mph NW
Humidity47%
Visibility—
Dew point51°
Fri, 1469° / 49°0Overcast
69 °Overcast

Grantsville, Friday, 14 August

Overcast. High 69°, low 49°.

Pressure30.09 inHg
Wind10.2 mph NW
Humidity47%
Visibility—
Dew point46°
Sat, 1569° / 49°0Overcast
69 °Overcast

Grantsville, Saturday, 15 August

Overcast. High 69°, low 49°.

Pressure30.24 inHg
Wind9.7 mph N
Humidity41%
Visibility—
Dew point42°
Sun, 1665° / 49°0Light rain
65 °Light rain

Grantsville, Sunday, 16 August

Light rain. High 65°, low 49°.

Pressure30.18 inHg
Wind3.8 mph NE
Humidity82%
Visibility—
Dew point53°
Mon, 1774° / 53°0Partly cloudy
74 °Partly cloudy

Grantsville, Monday, 17 August

Partly cloudy. High 74°, low 53°.

Pressure30.00 inHg
Wind7.7 mph NW
Humidity47%
Visibility—
Dew point51°
Tue, 1877° / 55°0Clear
77 °Clear

Grantsville, Tuesday, 18 August

Clear. High 77°, low 55°.

Pressure30.03 inHg
Wind7.3 mph N
Humidity43%
Visibility—
Dew point51°
Wed, 1982° / 57°0Overcast
82 °Overcast

Grantsville, Wednesday, 19 August

Overcast. High 82°, low 57°.

Pressure30.06 inHg
Wind3.6 mph N
Humidity43%
Visibility—
Dew point55°
Thu, 2087° / 60°0Mostly clear
87 °Mostly clear

Grantsville, Thursday, 20 August

Mostly clear. High 87°, low 60°.

Pressure29.97 inHg
Wind6.2 mph W
Humidity37%
Visibility—
Dew point55°
Fri, 2191° / 70°0.01Light rain
91 °Light rain

Grantsville, Friday, 21 August

Light rain. High 91°, low 70°.

Pressure29.85 inHg
Wind10.6 mph W
Humidity46%
Visibility—
Dew point66°
Sat, 2289° / 69°0.03Light rain
89 °Light rain

Grantsville, Saturday, 22 August

Light rain. High 89°, low 69°.

Pressure29.97 inHg
Wind5.6 mph N
Humidity34%
Visibility—
Dew point54°
Sun, 2393° / 67°0Partly cloudy
93 °Partly cloudy

Grantsville, Sunday, 23 August

Partly cloudy. High 93°, low 67°.

Pressure29.94 inHg
Wind7.8 mph NW
Humidity34%
Visibility—
Dew point57°
Mon, 2492° / 75°0.04Light rain
92 °Light rain

Grantsville, Monday, 24 August

Light rain. High 92°, low 75°.

Pressure30.00 inHg
Wind12.9 mph NW
Humidity45%
Visibility—
Dew point66°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Grantsville, MD are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Grantsville, MD since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.