Monthly outlook for Heather Valley, DE: average high 64.7°, average low 47.5°. That is 2.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (73.3°), the coolest 25 October (34.9°).
64.7°/47.5°
Average high / low
+2.7°
Above normal
4 / 4
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
66.2°
60.8°
+3°
3 November – 12 November
62.2°
57.1°
+2.8°
13 November – 22 November
at normal
52.4°
—
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).
Sun, 2564° / 35°0
64 °
Heather Valley, Sunday, 25 October
Clear. High 64°, low 35°.
Pressure30.56 inHg
Wind2.6 mph NW
Humidity35%
Visibility6.2 mi
Dew point33°
Mon, 2668° / 38°0
68 °
Heather Valley, Monday, 26 October
Clear. High 68°, low 38°.
Pressure30.30 inHg
Wind6.8 mph W
Humidity52%
Visibility6.2 mi
Dew point46°
Tue, 2763° / 49°0
63 °
Heather Valley, Tuesday, 27 October
Clear. High 63°, low 49°.
Pressure30.36 inHg
Wind6.4 mph NE
Humidity48%
Visibility6.2 mi
Dew point41°
Wed, 2861° / 44°0
61 °
Heather Valley, Wednesday, 28 October
Clear. High 61°, low 44°.
Pressure30.47 inHg
Wind5.1 mph E
Humidity53%
Visibility6.2 mi
Dew point41°
Thu, 2966° / 47°0
66 °
Heather Valley, Thursday, 29 October
Clear. High 66°, low 47°.
Pressure30.36 inHg
Wind9.2 mph SW
Humidity67%
Visibility—
Dew point48°
Fri, 3073° / 53°0
73 °
Heather Valley, Friday, 30 October
Mostly clear. High 73°, low 53°.
Pressure30.24 inHg
Wind7.4 mph W
Humidity52%
Visibility—
Dew point47°
Sat, 3167° / 54°0
67 °
Heather Valley, Saturday, 31 October
Mostly clear. High 67°, low 54°.
Pressure30.42 inHg
Wind6.4 mph SE
Humidity55%
Visibility—
Dew point45°
Sun, 0169° / 53°0
69 °
Heather Valley, Sunday, 1 November
Overcast. High 69°, low 53°.
Pressure30.36 inHg
Wind8.1 mph S
Humidity73%
Visibility—
Dew point52°
Mon, 0267° / 59°0.57
67 °
Heather Valley, Monday, 2 November
Rain. High 67°, low 59°.
Pressure29.88 inHg
Wind14.3 mph SW
Humidity94%
Visibility—
Dew point59°
Tue, 0365° / 51°0
65 °
Heather Valley, Tuesday, 3 November
Clear. High 65°, low 51°.
Pressure30.06 inHg
Wind12.5 mph NW
Humidity59%
Visibility—
Dew point44°
Wed, 0461° / 46°0.44
61 °
Heather Valley, Wednesday, 4 November
Rain. High 61°, low 46°.
Pressure30.24 inHg
Wind13.7 mph S
Humidity55%
Visibility—
Dew point37°
Thu, 0567° / 55°0.39
67 °
Heather Valley, Thursday, 5 November
Rain. High 67°, low 55°.
Pressure29.80 inHg
Wind17.1 mph SW
Humidity88%
Visibility—
Dew point58°
Fri, 0655° / 45°0
55 °
Heather Valley, Friday, 6 November
Partly cloudy. High 55°, low 45°.
Pressure29.97 inHg
Wind14.9 mph NW
Humidity54%
Visibility—
Dew point35°
Sat, 0759° / 44°0.04
59 °
Heather Valley, Saturday, 7 November
Light rain. High 59°, low 44°.
Pressure29.88 inHg
Wind12.1 mph SW
Humidity54%
Visibility—
Dew point37°
Sun, 0866° / 52°0
66 °
Heather Valley, Sunday, 8 November
Overcast. High 66°, low 52°.
Pressure29.53 inHg
Wind15.5 mph W
Humidity59%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0957° / 42°0.09
57 °
Heather Valley, 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°0.16
57 °
Heather Valley, 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°0.13
55 °
Heather Valley, 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°0.21
54 °
Heather Valley, 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°0.13
53 °
Heather Valley, 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°0.07
53 °
Heather Valley, 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°0.11
54 °
Heather Valley, 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°0.13
53 °
Heather Valley, 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°0.09
52 °
Heather Valley, 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°0.06
53 °
Heather Valley, 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)
Thu, 1952° / 39°0.09
52 °
Heather Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.09 in
Chance of precipitation27%
Record high67° (2016)
Record low24° (2014)
Fri, 2052° / 38°0.07
52 °
Heather Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation20%
Record high73° (1985)
Record low27° (2022)
Sat, 2151° / 38°0.09
51 °
Heather Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation23%
Record high70° (1991)
Record low23° (1987)
Sun, 2250° / 38°0.11
50 °
Heather Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high69° (2007)
Record low21° (2018)
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 Heather Valley, 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 Heather Valley, 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.