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As of 02:48 EDT

Weather in Londonderry, NH

69°Current weather

Londonderry, Sunday, 9 August, 02:48

Clear. Feels like 70°. High 93°, low 69°.

Pressure29.88 inHg
Wind1 mph W
Humidity94%
Visibility6.2 mi
Dew point67°
Mon, 1089° / 66°0.04Light rain
89 °Light rain

Londonderry, Monday, 10 August

Light rain. High 89°, low 66°.

Pressure29.97 inHg
Wind5.9 mph SW
Humidity38%
Visibility6.2 mi
Dew point56°
Tue, 1186° / 64°0.02Light rain
86 °Light rain

Londonderry, Tuesday, 11 August

Light rain. High 86°, low 64°.

Pressure29.74 inHg
Wind8 mph NW
Humidity43%
Visibility6.2 mi
Dew point59°
Wed, 1282° / 63°0Overcast
82 °Overcast

Londonderry, Wednesday, 12 August

Overcast. High 82°, low 63°.

Pressure29.80 inHg
Wind1.9 mph N
Humidity66%
Visibility6.2 mi
Dew point58°
Thu, 1379° / 60°0.02Light rain
79 °Light rain

Londonderry, Thursday, 13 August

Light rain. High 79°, low 60°.

Pressure29.65 inHg
Wind12.3 mph W
Humidity70%
Visibility—
Dew point60°
Fri, 1474° / 55°0Clear
74 °Clear

Londonderry, Friday, 14 August

Clear. High 74°, low 55°.

Pressure29.83 inHg
Wind14.3 mph W
Humidity42%
Visibility—
Dew point43°
Sat, 1576° / 55°0Partly cloudy
76 °Partly cloudy

Londonderry, Saturday, 15 August

Partly cloudy. High 76°, low 55°.

Pressure29.91 inHg
Wind15.6 mph NW
Humidity43%
Visibility—
Dew point44°
Sun, 1680° / 56°0Overcast
80 °Overcast

Londonderry, Sunday, 16 August

Overcast. High 80°, low 56°.

Pressure30.09 inHg
Wind6.9 mph NW
Humidity35%
Visibility—
Dew point44°
Mon, 1782° / 61°0Overcast
82 °Overcast

Londonderry, Monday, 17 August

Overcast. High 82°, low 61°.

Pressure30.00 inHg
Wind5.7 mph NW
Humidity40%
Visibility—
Dew point49°
Tue, 1882° / 56°0Clear
82 °Clear

Londonderry, Tuesday, 18 August

Clear. High 82°, low 56°.

Pressure30.00 inHg
Wind5.6 mph N
Humidity47%
Visibility—
Dew point51°
Wed, 1982° / 56°0Overcast
82 °Overcast

Londonderry, Wednesday, 19 August

Overcast. High 82°, low 56°.

Pressure30.15 inHg
Wind6.7 mph E
Humidity49%
Visibility—
Dew point54°
Thu, 2088° / 61°0Overcast
88 °Overcast

Londonderry, Thursday, 20 August

Overcast. High 88°, low 61°.

Pressure30.06 inHg
Wind9 mph S
Humidity46%
Visibility—
Dew point56°
Fri, 2190° / 67°0.1Light rain
90 °Light rain

Londonderry, Friday, 21 August

Light rain. High 90°, low 67°.

Pressure29.85 inHg
Wind11.3 mph SW
Humidity50%
Visibility—
Dew point62°
Sat, 2290° / 69°0Partly cloudy
90 °Partly cloudy

Londonderry, Saturday, 22 August

Partly cloudy. High 90°, low 69°.

Pressure29.85 inHg
Wind7.7 mph NW
Humidity55%
Visibility—
Dew point65°
Sun, 2389° / 62°0Mostly clear
89 °Mostly clear

Londonderry, Sunday, 23 August

Mostly clear. High 89°, low 62°.

Pressure29.94 inHg
Wind5.7 mph SE
Humidity46%
Visibility—
Dew point55°
Mon, 2473° / 62°0Overcast
73 °Overcast

Londonderry, Monday, 24 August

Overcast. High 73°, low 62°.

Pressure30.06 inHg
Wind7.8 mph NE
Humidity65%
Visibility—
Dew point60°

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 Londonderry, 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 Londonderry, 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.