Monthly outlook for Hartley, SD: average high 57.6°, average low 42°. That is 2.7° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 7 November (74°), the coolest 26 October (30.6°).
57.6°/42°
Average high / low
+2.7°
Above normal
3 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
55.3°
54.6°
+0.4°
5 November – 14 November
61.5°
48.7°
+7.1°
15 November – 24 November
at normal
44.6°
—
October records over 66 years
96.1°4 October 1963All-time high
-5.3°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Bridger (11 mi).
Tue, 2758° / 33°0
58 °
Hartley, Tuesday, 27 October
Partly cloudy. High 58°, low 33°.
Pressure29.85 inHg
Wind8.7 mph S
Humidity63%
Visibility6.2 mi
Dew point40°
Wed, 2859° / 39°0.01
59 °
Hartley, Wednesday, 28 October
Light rain. High 59°, low 39°.
Pressure29.88 inHg
Wind6 mph NW
Humidity66%
Visibility6.2 mi
Dew point43°
Thu, 2962° / 38°0
62 °
Hartley, Thursday, 29 October
Partly cloudy. High 62°, low 38°.
Pressure30.00 inHg
Wind8.8 mph S
Humidity60%
Visibility6.2 mi
Dew point44°
Fri, 3054° / 42°0
54 °
Hartley, Friday, 30 October
Overcast. High 54°, low 42°.
Pressure30.15 inHg
Wind10.5 mph E
Humidity81%
Visibility—
Dew point43°
Sat, 3167° / 51°0.02
67 °
Hartley, Saturday, 31 October
Light rain. High 67°, low 51°.
Pressure29.91 inHg
Wind11 mph SE
Humidity90%
Visibility—
Dew point56°
Sun, 0160° / 49°0
60 °
Hartley, Sunday, 1 November
Overcast. High 60°, low 49°.
Pressure29.88 inHg
Wind12 mph NW
Humidity69%
Visibility—
Dew point48°
Mon, 0248° / 41°0.24
48 °
Hartley, Monday, 2 November
Light rain. High 48°, low 41°.
Pressure29.91 inHg
Wind21.6 mph NW
Humidity82%
Visibility—
Dew point42°
Tue, 0351° / 38°0
51 °
Hartley, Tuesday, 3 November
Clear. High 51°, low 38°.
Pressure30.24 inHg
Wind17.4 mph NW
Humidity46%
Visibility—
Dew point27°
Wed, 0458° / 41°0
58 °
Hartley, Wednesday, 4 November
Partly cloudy. High 58°, low 41°.
Pressure29.83 inHg
Wind17.4 mph SE
Humidity36%
Visibility—
Dew point28°
Thu, 0563° / 46°0
63 °
Hartley, Thursday, 5 November
Clear. High 63°, low 46°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity41%
Visibility—
Dew point33°
Fri, 0664° / 48°0
64 °
Hartley, Friday, 6 November
Overcast. High 64°, low 48°.
Pressure29.80 inHg
Wind8.4 mph SE
Humidity31%
Visibility—
Dew point28°
Sat, 0774° / 51°0
74 °
Hartley, Saturday, 7 November
Overcast. High 74°, low 51°.
Pressure29.41 inHg
Wind14.8 mph S
Humidity38%
Visibility—
Dew point38°
Sun, 0853° / 44°0.09
53 °
Hartley, Sunday, 8 November
Light rain. High 53°, low 44°.
Pressure29.50 inHg
Wind27.9 mph NW
Humidity68%
Visibility—
Dew point42°
Mon, 0953° / 41°0
53 °
Hartley, Monday, 9 November
Partly cloudy. High 53°, low 41°.
Pressure30.00 inHg
Wind22.1 mph NW
Humidity52%
Visibility—
Dew point31°
Tue, 1062° / 42°0
62 °
Hartley, Tuesday, 10 November
Clear. High 62°, low 42°.
Pressure30.06 inHg
Wind8 mph NW
Humidity44%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1145° / 27°0.01
45 °
Hartley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.01 in
Chance of precipitation12%
Record high70° (2005)
Record low-13° (1986)
Thu, 1247° / 28°0.02
47 °
Hartley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (1999)
Record low-9° (1986)
Fri, 1348° / 29°0.03
48 °
Hartley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (1990)
Record low-20° (1986)
Sat, 1447° / 30°0.02
47 °
Hartley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (1990)
Record low0° (2014)
Sun, 1546° / 28°0.02
46 °
Hartley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.02 in
Chance of precipitation10%
Record high67° (2001)
Record low3° (1978)
Mon, 1648° / 29°0.02
48 °
Hartley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.02 in
Chance of precipitation7%
Record high71° (2001)
Record low6° (2014)
Tue, 1746° / 29°0.02
46 °
Hartley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (2001)
Record low1° (2000)
Wed, 1846° / 28°0.03
46 °
Hartley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2007)
Record low-1° (2014)
Thu, 1944° / 28°0.03
44 °
Hartley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.03 in
Chance of precipitation18%
Record high70° (2003)
Record low5° (1985)
Fri, 2044° / 26°0.01
44 °
Hartley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.01 in
Chance of precipitation5%
Record high68° (1962)
Record low-5° (1985)
Sat, 2143° / 25°0.02
43 °
Hartley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.02 in
Chance of precipitation15%
Record high70° (2012)
Record low-7° (1977)
Sun, 2244° / 26°0.02
44 °
Hartley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high66° (2002)
Record low-2° (1985)
Mon, 2342° / 25°0.02
42 °
Hartley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (2017)
Record low-12° (1985)
Tue, 2443° / 24°0.01
43 °
Hartley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.01 in
Chance of precipitation8%
Record high70° (1990)
Record low-13° (1985)
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 Hartley, SD 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 Hartley, SD 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.