As of 13:45 EDT

Weather in South Chatham, NH

87°

South Chatham, Sunday, 9 August, 13:45

Clear. Feels like 94°. High 88°, low 66°.

Pressure29.85 inHg

Wind10.8 mph W

Humidity61%

Visibility6.2 mi

Dew point72°

See detailed hourly forecast

Mon, 1085° / 65°

0.06

85 °

South Chatham, Monday, 10 August

Rain. High 85°, low 65°.

Pressure29.94 inHg

Wind7.3 mph S

Humidity39%

Visibility6.2 mi

Dew point55°

Tue, 1182° / 60°

82 °

South Chatham, Tuesday, 11 August

Partly cloudy. High 82°, low 60°.

Pressure29.74 inHg

Wind9.9 mph NW

Humidity45%

Visibility6.2 mi

Dew point57°

Wed, 1284° / 60°

0.13

84 °

South Chatham, Wednesday, 12 August

Light rain. High 84°, low 60°.

Pressure29.77 inHg

Wind4.5 mph NW

Humidity30%

Visibility6.2 mi

Dew point47°

Thu, 1375° / 58°

0.19

75 °

South Chatham, Thursday, 13 August

Light rain. High 75°, low 58°.

Pressure29.59 inHg

Wind2.7 mph SW

Humidity79%

Visibility6.0 mi

Dew point65°

Fri, 1469° / 54°

69 °

South Chatham, Friday, 14 August

Overcast. High 69°, low 54°.

Pressure29.83 inHg

Wind9.3 mph NW

Humidity59%

Visibility—

Dew point48°

Sat, 1574° / 49°

74 °

South Chatham, Saturday, 15 August

Clear. High 74°, low 49°.

Pressure30.03 inHg

Wind12 mph N

Humidity37%

Visibility—

Dew point40°

Sun, 1679° / 53°

79 °

South Chatham, Sunday, 16 August

Partly cloudy. High 79°, low 53°.

Pressure30.12 inHg

Wind4.6 mph NW

Humidity34%

Visibility—

Dew point42°

Mon, 1769° / 56°

0.09

69 °

South Chatham, Monday, 17 August

Light rain. High 69°, low 56°.

Pressure30.00 inHg

Wind5.9 mph S

Humidity58%

Visibility—

Dew point52°

Tue, 1879° / 57°

79 °

South Chatham, Tuesday, 18 August

Overcast. High 79°, low 57°.

Pressure29.94 inHg

Wind4.9 mph NE

Humidity58%

Visibility—

Dew point53°

Wed, 1978° / 58°

0.05

78 °

South Chatham, Wednesday, 19 August

Light rain. High 78°, low 58°.

Pressure29.97 inHg

Wind6.1 mph S

Humidity81%

Visibility—

Dew point59°

Thu, 2078° / 60°

0.29

78 °

South Chatham, Thursday, 20 August

Rain. High 78°, low 60°.

Pressure29.68 inHg

Wind5.2 mph N

Humidity98%

Visibility—

Dew point64°

Fri, 2175° / 61°

0.04

75 °

South Chatham, Friday, 21 August

Light rain. High 75°, low 61°.

Pressure29.85 inHg

Wind3.3 mph NW

Humidity76%

Visibility—

Dew point61°

Sat, 2283° / 57°

83 °

South Chatham, Saturday, 22 August

Overcast. High 83°, low 57°.

Pressure29.94 inHg

Wind7.6 mph SW

Humidity50%

Visibility—

Dew point54°

Sun, 2379° / 59°

0.63

79 °

South Chatham, Sunday, 23 August

Rain. High 79°, low 59°.

Pressure29.74 inHg

Wind13.6 mph W

Humidity99%

Visibility—

Dew point64°

Mon, 2473° / 47°

73 °

South Chatham, Monday, 24 August

Clear. High 73°, low 47°.

Pressure30.09 inHg

Wind9.2 mph NW

Humidity37%

Visibility—

Dew point38°

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 South Chatham, NH 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 South Chatham, NH 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.