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As of 22:52 EDT

Weather in Derby, CT

75°Current weather

Derby, Saturday, 8 August, 22:52

Clear. Feels like 77°. High 87°, low 70°.

Pressure29.94 inHg
Wind4 mph W
Humidity92%
Visibility6.2 mi
Dew point73°
Sun, 0990° / 72°0.04Light rain
90 °Light rain

Derby, Sunday, 9 August

Light rain. High 90°, low 72°.

Pressure29.94 inHg
Wind8 mph W
Humidity45%
Visibility6.2 mi
Dew point64°
Mon, 1088° / 70°0.01Light rain
88 °Light rain

Derby, Monday, 10 August

Light rain. High 88°, low 70°.

Pressure29.97 inHg
Wind7.1 mph SW
Humidity42%
Visibility6.2 mi
Dew point59°
Tue, 1189° / 72°0Overcast
89 °Overcast

Derby, Tuesday, 11 August

Overcast. High 89°, low 72°.

Pressure29.85 inHg
Wind7 mph NW
Humidity42%
Visibility6.2 mi
Dew point59°
Wed, 1276° / 67°0.29Rain
76 °Rain

Derby, Wednesday, 12 August

Rain. High 76°, low 67°.

Pressure29.74 inHg
Wind5.9 mph N
Humidity79%
Visibility6.2 mi
Dew point64°
Thu, 1383° / 64°0.05Light rain
83 °Light rain

Derby, Thursday, 13 August

Light rain. High 83°, low 64°.

Pressure29.71 inHg
Wind13.4 mph W
Humidity55%
Visibility—
Dew point60°
Fri, 1476° / 58°0Clear
76 °Clear

Derby, Friday, 14 August

Clear. High 76°, low 58°.

Pressure30.00 inHg
Wind9.9 mph N
Humidity40%
Visibility—
Dew point44°
Sat, 1578° / 57°0Clear
78 °Clear

Derby, Saturday, 15 August

Clear. High 78°, low 57°.

Pressure30.06 inHg
Wind13.6 mph NW
Humidity45%
Visibility—
Dew point47°
Sun, 1679° / 57°0Mostly clear
79 °Mostly clear

Derby, Sunday, 16 August

Mostly clear. High 79°, low 57°.

Pressure30.18 inHg
Wind7.3 mph N
Humidity36%
Visibility—
Dew point44°
Mon, 1779° / 62°0.03Light rain
79 °Light rain

Derby, Monday, 17 August

Light rain. High 79°, low 62°.

Pressure30.15 inHg
Wind12.5 mph S
Humidity46%
Visibility—
Dew point53°
Tue, 1877° / 66°0.08Light rain
77 °Light rain

Derby, Tuesday, 18 August

Light rain. High 77°, low 66°.

Pressure30.15 inHg
Wind7.3 mph S
Humidity76%
Visibility—
Dew point63°
Wed, 1976° / 66°0Overcast
76 °Overcast

Derby, Wednesday, 19 August

Overcast. High 76°, low 66°.

Pressure30.00 inHg
Wind9.6 mph S
Humidity65%
Visibility—
Dew point60°
Thu, 2079° / 66°0.48Rain
79 °Rain

Derby, Thursday, 20 August

Rain. High 79°, low 66°.

Pressure29.65 inHg
Wind13.6 mph W
Humidity92%
Visibility—
Dew point67°
Fri, 2176° / 61°0Overcast
76 °Overcast

Derby, Friday, 21 August

Overcast. High 76°, low 61°.

Pressure29.77 inHg
Wind11.9 mph N
Humidity63%
Visibility—
Dew point53°
Sat, 2277° / 56°0Clear
77 °Clear

Derby, Saturday, 22 August

Clear. High 77°, low 56°.

Pressure30.06 inHg
Wind8.5 mph NW
Humidity32%
Visibility—
Dew point38°
Sun, 2376° / 62°0.02Light rain
76 °Light rain

Derby, Sunday, 23 August

Light rain. High 76°, low 62°.

Pressure30.06 inHg
Wind12.5 mph S
Humidity47%
Visibility—
Dew point51°

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 Derby, 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 Derby, 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.