As of 10:56 EDT

Weather in Grantville, CT

79°

Grantville, Sunday, 9 August, 10:56

Clear. Feels like 79°. High 81°, low 66°.

Pressure29.97 inHg

Wind8 mph NE

Humidity78%

Visibility6.2 mi

Dew point72°

See detailed hourly forecast

Mon, 1081° / 62°

0.03

81 °

Grantville, Monday, 10 August

Light rain. High 81°, low 62°.

Pressure29.97 inHg

Wind8.4 mph SW

Humidity44%

Visibility6.2 mi

Dew point58°

Tue, 1180° / 62°

80 °

Grantville, Tuesday, 11 August

Overcast. High 80°, low 62°.

Pressure29.85 inHg

Wind12.1 mph NW

Humidity50%

Visibility6.2 mi

Dew point58°

Wed, 1282° / 58°

82 °

Grantville, Wednesday, 12 August

Overcast. High 82°, low 58°.

Pressure29.83 inHg

Wind3.5 mph SW

Humidity42%

Visibility6.2 mi

Dew point55°

Thu, 1376° / 60°

0.05

76 °

Grantville, Thursday, 13 August

Light rain. High 76°, low 60°.

Pressure29.68 inHg

Wind15.3 mph NW

Humidity63%

Visibility—

Dew point60°

Fri, 1470° / 50°

70 °

Grantville, Friday, 14 August

Clear. High 70°, low 50°.

Pressure29.97 inHg

Wind13.4 mph NW

Humidity47%

Visibility—

Dew point43°

Sat, 1571° / 48°

71 °

Grantville, Saturday, 15 August

Clear. High 71°, low 48°.

Pressure30.12 inHg

Wind12.6 mph N

Humidity49%

Visibility—

Dew point43°

Sun, 1671° / 51°

71 °

Grantville, Sunday, 16 August

Overcast. High 71°, low 51°.

Pressure30.18 inHg

Wind6.6 mph W

Humidity41%

Visibility—

Dew point43°

Mon, 1761° / 57°

0.2

61 °

Grantville, Monday, 17 August

Light rain. High 61°, low 57°.

Pressure30.00 inHg

Wind6.1 mph N

Humidity82%

Visibility—

Dew point56°

Tue, 1877° / 55°

77 °

Grantville, Tuesday, 18 August

Partly cloudy. High 77°, low 55°.

Pressure29.94 inHg

Wind7.8 mph NW

Humidity51%

Visibility—

Dew point51°

Wed, 1980° / 60°

80 °

Grantville, Wednesday, 19 August

Overcast. High 80°, low 60°.

Pressure29.91 inHg

Wind11 mph S

Humidity52%

Visibility—

Dew point55°

Thu, 2076° / 58°

0.09

76 °

Grantville, Thursday, 20 August

Light rain. High 76°, low 58°.

Pressure29.68 inHg

Wind10.7 mph NW

Humidity68%

Visibility—

Dew point63°

Fri, 2178° / 53°

78 °

Grantville, Friday, 21 August

Clear. High 78°, low 53°.

Pressure29.85 inHg

Wind7.9 mph W

Humidity61%

Visibility—

Dew point56°

Sat, 2282° / 56°

82 °

Grantville, Saturday, 22 August

Clear. High 82°, low 56°.

Pressure29.94 inHg

Wind9.9 mph SW

Humidity40%

Visibility—

Dew point48°

Sun, 2380° / 60°

0.58

80 °

Grantville, Sunday, 23 August

Rain. High 80°, low 60°.

Pressure29.77 inHg

Wind15.9 mph W

Humidity90%

Visibility—

Dew point69°

Mon, 2471° / 51°

71 °

Grantville, Monday, 24 August

Clear. High 71°, low 51°.

Pressure30.18 inHg

Wind9.5 mph NW

Humidity48%

Visibility—

Dew point44°

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 Grantville, CT 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 Grantville, CT 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.