As of 22:18 EDT

Weather in Derby, ME

49°Current weather

Derby, Friday, 9 October, 22:18

Mostly clear. Feels like 45°. High 58°, low 44°.

Pressure30.06 inHg
Wind7.1 mph W
Humidity76%
Visibility6.2 mi
Dew point41°

Monthly outlook for Derby, ME: average high 54.3°, average low 38.8°. That is 0.2° above the climate normal for October. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 5 days and 2.4 inches. The warmest day looks like 12 October (70.4°), the coolest 19 October (29°).

54.3°/38.8°
Average high / low
+0.2°
Above normal
6 / 5
Wet days / normal
2.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October55.1°55°+0°
19 October – 28 October53°51.4°+0.9°
29 October – 7 Novemberat normal47.4°—

October records over 66 years

83.3°6 October 2025All-time high
24.6°27 October 2018All-time low

Climate normals and records are computed from the nearest reference point — Schoodic (14 mi).

Sat, 1055° / 39°0Clear
55 °Clear

Derby, Saturday, 10 October

Clear. High 55°, low 39°.

Pressure30.36 inHg
Wind10.8 mph NW
Humidity45%
Visibility6.2 mi
Dew point28°
Sun, 1159° / 39°0Overcast
59 °Overcast

Derby, Sunday, 11 October

Overcast. High 59°, low 39°.

Pressure30.33 inHg
Wind8.7 mph SW
Humidity51%
Visibility6.2 mi
Dew point37°
Mon, 1270° / 48°0.01Light rain
70 °Light rain

Derby, Monday, 12 October

Light rain. High 70°, low 48°.

Pressure29.68 inHg
Wind3.8 mph SW
Humidity53%
Visibility6.2 mi
Dew point47°
Tue, 1345° / 42°0.8Rain
45 °Rain

Derby, Tuesday, 13 October

Rain. High 45°, low 42°.

Pressure30.03 inHg
Wind8.4 mph E
Humidity98%
Visibility3.2 mi
Dew point41°
Wed, 1452° / 43°0.29Rain
52 °Rain

Derby, Wednesday, 14 October

Rain. High 52°, low 43°.

Pressure29.77 inHg
Wind10.7 mph NW
Humidity89%
Visibility—
Dew point44°
Thu, 1551° / 36°0Mostly clear
51 °Mostly clear

Derby, Thursday, 15 October

Mostly clear. High 51°, low 36°.

Pressure29.88 inHg
Wind15.5 mph NW
Humidity53%
Visibility—
Dew point31°
Fri, 1653° / 34°0.08Light rain
53 °Light rain

Derby, Friday, 16 October

Light rain. High 53°, low 34°.

Pressure30.21 inHg
Wind11.8 mph S
Humidity61%
Visibility—
Dew point30°
Sat, 1761° / 50°0.51Rain
61 °Rain

Derby, Saturday, 17 October

Rain. High 61°, low 50°.

Pressure29.68 inHg
Wind11.1 mph SW
Humidity96%
Visibility—
Dew point60°
Sun, 1848° / 32°0.1Light rain
48 °Light rain

Derby, Sunday, 18 October

Light rain. High 48°, low 32°.

Pressure30.09 inHg
Wind11.7 mph NW
Humidity77%
Visibility—
Dew point37°
Mon, 1951° / 29°0Partly cloudy
51 °Partly cloudy

Derby, Monday, 19 October

Partly cloudy. High 51°, low 29°.

Pressure30.39 inHg
Wind6.6 mph W
Humidity41%
Visibility—
Dew point21°
Tue, 2046° / 29°0Clear
46 °Clear

Derby, Tuesday, 20 October

Clear. High 46°, low 29°.

Pressure30.62 inHg
Wind6.6 mph N
Humidity40%
Visibility—
Dew point19°
Wed, 2151° / 29°0Overcast
51 °Overcast

Derby, Wednesday, 21 October

Overcast. High 51°, low 29°.

Pressure30.65 inHg
Wind8.1 mph SW
Humidity40%
Visibility—
Dew point20°
Thu, 2255° / 33°0Overcast
55 °Overcast

Derby, Thursday, 22 October

Overcast. High 55°, low 33°.

Pressure30.47 inHg
Wind7.9 mph SW
Humidity77%
Visibility—
Dew point38°
Fri, 2358° / 44°0.01Light rain
58 °Light rain

Derby, Friday, 23 October

Light rain. High 58°, low 44°.

Pressure30.27 inHg
Wind7.3 mph S
Humidity80%
Visibility—
Dew point47°
Sat, 2458° / 50°0.51Rain
58 °Rain

Derby, Saturday, 24 October

Rain. High 58°, low 50°.

Pressure29.97 inHg
Wind8.9 mph SE
Humidity98%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2551° / 39°0.15Climate normal
51 °Climate normal

Derby, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.15 in
Chance of precipitation37%
Record high74° (1963)
Record low28° (2003)
Mon, 2650° / 39°0.2Climate normal
50 °Climate normal

Derby, Monday, 26 October

Climate normal for this date — 60-year average.

Average high50°
Average low39°
Average precipitation0.2 in
Chance of precipitation38%
Record high73° (1963)
Record low27° (2018)
Tue, 2750° / 37°0.11Climate normal
50 °Climate normal

Derby, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high70° (2023)
Record low25° (2018)
Wed, 2850° / 37°0.2Climate normal
50 °Climate normal

Derby, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.2 in
Chance of precipitation33%
Record high72° (2023)
Record low26° (1976)
Thu, 2949° / 36°0.13Climate normal
49 °Climate normal

Derby, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation27%
Record high67° (1989)
Record low26° (1965)
Fri, 3047° / 35°0.16Climate normal
47 °Climate normal

Derby, Friday, 30 October

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.16 in
Chance of precipitation25%
Record high67° (1989)
Record low25° (1962)
Sat, 3149° / 36°0.13Climate normal
49 °Climate normal

Derby, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation23%
Record high70° (2024)
Record low26° (2020)
Sun, 0149° / 36°0.12Climate normal
49 °Climate normal

Derby, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation40%
Record high69° (2024)
Record low25° (1972)
Mon, 0247° / 36°0.19Climate normal
47 °Climate normal

Derby, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.19 in
Chance of precipitation40%
Record high60° (2001)
Record low20° (2002)
Tue, 0347° / 36°0.24Climate normal
47 °Climate normal

Derby, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.24 in
Chance of precipitation48%
Record high61° (1975)
Record low21° (2002)
Wed, 0447° / 35°0.09Climate normal
47 °Climate normal

Derby, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation35%
Record high66° (1990)
Record low23° (2002)
Thu, 0547° / 35°0.14Climate normal
47 °Climate normal

Derby, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.14 in
Chance of precipitation35%
Record high68° (2022)
Record low22° (1965)
Fri, 0646° / 35°0.16Climate normal
46 °Climate normal

Derby, Friday, 6 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.16 in
Chance of precipitation42%
Record high70° (2022)
Record low26° (1973)
Sat, 0746° / 34°0.08Climate normal
46 °Climate normal

Derby, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.08 in
Chance of precipitation32%
Record high66° (2022)
Record low14° (2002)

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, ME 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, ME 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.