Monthly outlook for Trinity, DE: average high 66.7°, average low 51.8°. That is 0.1° above the climate normal for October. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 12 October (77.8°), the coolest 21 October (41.1°).
66.7°/51.8°
Average high / low
+0.1°
Above normal
5 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
68.7°
67.7°
+0.5°
17 October – 26 October
63.4°
64°
-0.3°
27 October – 5 November
at normal
61.6°
—
October records over 66 years
93.4°2 October 2019All-time high
36.3°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Dewey Beach (8 mi).
Thu, 0876° / 55°0
76 °
Trinity, Thursday, 8 October
Clear. High 76°, low 55°.
Pressure29.94 inHg
Wind8.1 mph W
Humidity59%
Visibility6.2 mi
Dew point59°
Fri, 0973° / 50°0
73 °
Trinity, Friday, 9 October
Mostly clear. High 73°, low 50°.
Pressure30.21 inHg
Wind3.5 mph W
Humidity40%
Visibility6.2 mi
Dew point46°
Sat, 1069° / 55°0
69 °
Trinity, Saturday, 10 October
Overcast. High 69°, low 55°.
Pressure30.47 inHg
Wind9.2 mph E
Humidity57%
Visibility6.2 mi
Dew point53°
Sun, 1173° / 61°0.95
73 °
Trinity, Sunday, 11 October
Heavy rain. High 73°, low 61°.
Pressure30.30 inHg
Wind13.7 mph SE
Humidity74%
Visibility—
Dew point60°
Mon, 1278° / 68°0.26
78 °
Trinity, Monday, 12 October
Rain. High 78°, low 68°.
Pressure29.71 inHg
Wind14.1 mph SW
Humidity89%
Visibility—
Dew point70°
Tue, 1369° / 58°0.61
69 °
Trinity, Tuesday, 13 October
Rain. High 69°, low 58°.
Pressure29.91 inHg
Wind12.1 mph E
Humidity85%
Visibility—
Dew point58°
Wed, 1456° / 47°0.2
56 °
Trinity, Wednesday, 14 October
Rain. High 56°, low 47°.
Pressure30.09 inHg
Wind20.9 mph N
Humidity85%
Visibility—
Dew point44°
Thu, 1559° / 48°0
59 °
Trinity, Thursday, 15 October
Light rain. High 59°, low 48°.
Pressure30.18 inHg
Wind17 mph NE
Humidity72%
Visibility—
Dew point43°
Fri, 1664° / 60°0.01
64 °
Trinity, Friday, 16 October
Light rain. High 64°, low 60°.
Pressure30.06 inHg
Wind15.2 mph NE
Humidity90%
Visibility—
Dew point59°
Sat, 1772° / 52°0.04
72 °
Trinity, Saturday, 17 October
Light rain. High 72°, low 52°.
Pressure29.71 inHg
Wind21.2 mph NW
Humidity85%
Visibility—
Dew point64°
Sun, 1857° / 48°0
57 °
Trinity, Sunday, 18 October
Mostly clear. High 57°, low 48°.
Pressure29.97 inHg
Wind20.2 mph NW
Humidity56%
Visibility—
Dew point38°
Mon, 1958° / 42°0
58 °
Trinity, Monday, 19 October
Clear. High 58°, low 42°.
Pressure30.33 inHg
Wind13.4 mph W
Humidity48%
Visibility—
Dew point34°
Tue, 2063° / 46°0
63 °
Trinity, Tuesday, 20 October
Overcast. High 63°, low 46°.
Pressure30.36 inHg
Wind12.1 mph NW
Humidity46%
Visibility—
Dew point36°
Wed, 2163° / 41°0
63 °
Trinity, Wednesday, 21 October
Clear. High 63°, low 41°.
Pressure30.36 inHg
Wind8.9 mph NW
Humidity48%
Visibility—
Dew point32°
Thu, 2267° / 54°0
67 °
Trinity, Thursday, 22 October
Partly cloudy. High 67°, low 54°.
Pressure30.15 inHg
Wind8.3 mph E
Humidity62%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2364° / 54°0.08
64 °
Trinity, Friday, 23 October
Climate normal for this date — 60-year average.
Average high64°
Average low54°
Average precipitation0.08 in
Chance of precipitation20%
Record high79° (2024)
Record low38° (1969)
Sat, 2464° / 54°0.11
64 °
Trinity, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high64°
Average low54°
Average precipitation0.11 in
Chance of precipitation27%
Record high78° (2007)
Record low37° (1969)
Sun, 2563° / 53°0.13
63 °
Trinity, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high63°
Average low53°
Average precipitation0.13 in
Chance of precipitation33%
Record high78° (2021)
Record low41° (2018)
Mon, 2662° / 53°0.17
62 °
Trinity, Monday, 26 October
Climate normal for this date — 60-year average.
Average high62°
Average low53°
Average precipitation0.17 in
Chance of precipitation33%
Record high79° (2023)
Record low38° (1962)
Tue, 2763° / 53°0.16
63 °
Trinity, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high63°
Average low53°
Average precipitation0.16 in
Chance of precipitation32%
Record high80° (2023)
Record low38° (1976)
Wed, 2862° / 53°0.13
62 °
Trinity, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high62°
Average low53°
Average precipitation0.13 in
Chance of precipitation30%
Record high82° (2023)
Record low36° (1976)
Thu, 2961° / 51°0.28
61 °
Trinity, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high61°
Average low51°
Average precipitation0.28 in
Chance of precipitation18%
Record high79° (2023)
Record low37° (1965)
Fri, 3061° / 50°0.1
61 °
Trinity, Friday, 30 October
Climate normal for this date — 60-year average.
Average high61°
Average low50°
Average precipitation0.1 in
Chance of precipitation13%
Record high81° (2023)
Record low40° (1965)
Sat, 3162° / 51°0.06
62 °
Trinity, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high62°
Average low51°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (2024)
Record low39° (1966)
Sun, 0163° / 53°0.1
63 °
Trinity, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high63°
Average low53°
Average precipitation0.1 in
Chance of precipitation22%
Record high76° (2024)
Record low41° (1975)
Mon, 0262° / 53°0.1
62 °
Trinity, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low53°
Average precipitation0.1 in
Chance of precipitation32%
Record high76° (1971)
Record low38° (2020)
Tue, 0362° / 51°0.08
62 °
Trinity, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high62°
Average low51°
Average precipitation0.08 in
Chance of precipitation27%
Record high77° (2016)
Record low38° (2023)
Wed, 0460° / 50°0.08
60 °
Trinity, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high60°
Average low50°
Average precipitation0.08 in
Chance of precipitation23%
Record high74° (1974)
Record low38° (1966)
Thu, 0560° / 50°0.13
60 °
Trinity, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high60°
Average low50°
Average precipitation0.13 in
Chance of precipitation33%
Record high76° (2024)
Record low38° (1991)
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 Trinity, 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 Trinity, 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.