As of 00:01 EDT

Weather in Mermaid, DE

48°Current weather

Mermaid, Tuesday, 20 October, 00:01

Clear. Feels like 44°. High 69°, low 45°.

Pressure30.24 inHg
Wind9.1 mph N
Humidity80%
Visibility6.2 mi
Dew point40°

Monthly outlook for Mermaid, DE: average high 59.4°, average low 42.9°. That is 1° below the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 20 October (68.8°), the coolest 29 October (32.6°).

59.4°/42.9°
Average high / low
−1°
Below normal
1 / 4
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October60.5°61.9°-0.8°
30 October – 8 November57.6°58.9°-0.8°
9 November – 18 Novemberat normal54°—

October records over 66 years

93.9°2 October 2019All-time high
29.8°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Elsmere (5 mi).

Wed, 2164° / 41°0Clear
64 °Clear

Mermaid, Wednesday, 21 October

Clear. High 64°, low 41°.

Pressure30.21 inHg
Wind10.9 mph N
Humidity55%
Visibility6.2 mi
Dew point40°
Thu, 2263° / 42°0Clear
63 °Clear

Mermaid, Thursday, 22 October

Clear. High 63°, low 42°.

Pressure30.03 inHg
Wind11.9 mph NW
Humidity48%
Visibility6.2 mi
Dew point38°
Fri, 2355° / 42°0Clear
55 °Clear

Mermaid, Friday, 23 October

Clear. High 55°, low 42°.

Pressure30.30 inHg
Wind12.4 mph N
Humidity47%
Visibility6.2 mi
Dew point31°
Sat, 2456° / 37°0Mostly clear
56 °Mostly clear

Mermaid, Saturday, 24 October

Mostly clear. High 56°, low 37°.

Pressure30.53 inHg
Wind8.1 mph N
Humidity53%
Visibility—
Dew point31°
Sun, 2562° / 39°0Clear
62 °Clear

Mermaid, Sunday, 25 October

Clear. High 62°, low 39°.

Pressure30.59 inHg
Wind5.7 mph N
Humidity55%
Visibility—
Dew point37°
Mon, 2664° / 47°0Overcast
64 °Overcast

Mermaid, Monday, 26 October

Overcast. High 64°, low 47°.

Pressure30.33 inHg
Wind7.4 mph SW
Humidity60%
Visibility—
Dew point43°
Tue, 2767° / 54°0Partly cloudy
67 °Partly cloudy

Mermaid, Tuesday, 27 October

Partly cloudy. High 67°, low 54°.

Pressure30.15 inHg
Wind9.5 mph SW
Humidity56%
Visibility—
Dew point46°
Wed, 2857° / 41°0.01Light rain
57 °Light rain

Mermaid, Wednesday, 28 October

Light rain. High 57°, low 41°.

Pressure29.97 inHg
Wind13.4 mph NW
Humidity66%
Visibility—
Dew point40°
Thu, 2948° / 33°0Clear
48 °Clear

Mermaid, Thursday, 29 October

Clear. High 48°, low 33°.

Pressure30.12 inHg
Wind13.3 mph NW
Humidity49%
Visibility—
Dew point24°
Fri, 3052° / 36°0Clear
52 °Clear

Mermaid, Friday, 30 October

Clear. High 52°, low 36°.

Pressure30.24 inHg
Wind7.4 mph W
Humidity45%
Visibility—
Dew point25°
Sat, 3157° / 39°0Clear
57 °Clear

Mermaid, Saturday, 31 October

Clear. High 57°, low 39°.

Pressure30.36 inHg
Wind5.2 mph W
Humidity37%
Visibility—
Dew point24°
Sun, 0160° / 44°0Clear
60 °Clear

Mermaid, Sunday, 1 November

Clear. High 60°, low 44°.

Pressure30.47 inHg
Wind5.9 mph SE
Humidity46%
Visibility—
Dew point32°
Mon, 0263° / 46°0.03Light rain
63 °Light rain

Mermaid, Monday, 2 November

Light rain. High 63°, low 46°.

Pressure30.30 inHg
Wind7.2 mph S
Humidity67%
Visibility—
Dew point44°
Tue, 0359° / 54°0.46Rain
59 °Rain

Mermaid, Tuesday, 3 November

Rain. High 59°, low 54°.

Pressure29.94 inHg
Wind10 mph SE
Humidity93%
Visibility—
Dew point54°
Wed, 0455° / 48°0Clear
55 °Clear

Mermaid, Wednesday, 4 November

Clear. High 55°, low 48°.

Pressure29.77 inHg
Wind16.5 mph NW
Humidity69%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0558° / 44°0.11Climate normal
58 °Climate normal

Mermaid, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.11 in
Chance of precipitation28%
Record high76° (2022)
Record low30° (1991)
Fri, 0657° / 44°0.08Climate normal
57 °Climate normal

Mermaid, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°
Average low44°
Average precipitation0.08 in
Chance of precipitation27%
Record high77° (2024)
Record low31° (1967)
Sat, 0757° / 43°0.09Climate normal
57 °Climate normal

Mermaid, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high57°
Average low43°
Average precipitation0.09 in
Chance of precipitation22%
Record high75° (2024)
Record low30° (1962)
Sun, 0856° / 42°0.11Climate normal
56 °Climate normal

Mermaid, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.11 in
Chance of precipitation25%
Record high73° (1975)
Record low29° (1960)
Mon, 0957° / 42°0.09Climate normal
57 °Climate normal

Mermaid, Monday, 9 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1975)
Record low24° (2019)
Tue, 1057° / 42°0.16Climate normal
57 °Climate normal

Mermaid, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.16 in
Chance of precipitation35%
Record high73° (2020)
Record low28° (2017)
Wed, 1155° / 42°0.13Climate normal
55 °Climate normal

Mermaid, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.13 in
Chance of precipitation28%
Record high71° (2024)
Record low22° (2017)
Thu, 1254° / 41°0.21Climate normal
54 °Climate normal

Mermaid, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.21 in
Chance of precipitation40%
Record high69° (2022)
Record low29° (1987)
Fri, 1353° / 40°0.13Climate normal
53 °Climate normal

Mermaid, Friday, 13 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.13 in
Chance of precipitation38%
Record high70° (1964)
Record low22° (2019)
Sat, 1453° / 39°0.07Climate normal
53 °Climate normal

Mermaid, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation18%
Record high69° (1993)
Record low25° (1986)
Sun, 1554° / 40°0.11Climate normal
54 °Climate normal

Mermaid, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation28%
Record high75° (1993)
Record low26° (1967)
Mon, 1653° / 40°0.13Climate normal
53 °Climate normal

Mermaid, Monday, 16 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.13 in
Chance of precipitation32%
Record high73° (2005)
Record low24° (1967)
Tue, 1752° / 38°0.09Climate normal
52 °Climate normal

Mermaid, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high68° (1987)
Record low28° (1996)
Wed, 1853° / 38°0.06Climate normal
53 °Climate normal

Mermaid, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation27%
Record high67° (2021)
Record low27° (2014)

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 Mermaid, DE 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 Mermaid, DE 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.