As of 19:49 MDT

Weather in Hartley, SD

68°

Hartley, Friday, 23 October, 19:49

Clear. Feels like 66°. High 82°, low 57°.

Pressure29.71 inHg

Wind10 mph SW

Humidity32%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Hartley, SD: average high 60.4°, average low 43.8°. That is 3° above the climate normal for October. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 23 October (82.2°), the coolest 26 October (33.7°).

60.4°/43.8°

Average high / low

+3°

Above normal

3 / 2

Wet days / normal

1.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
23 October – 1 November	57.7°	56.4°	+0.7°
2 November – 11 November	64.9°	50.3°	+8.1°
12 November – 21 November	at normal	46°	—

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).

Sat, 2462° / 42°

0.01

62 °

Hartley, Saturday, 24 October

Light rain. High 62°, low 42°.

Pressure30.39 inHg

Wind13.1 mph NW

Humidity44%

Visibility6.2 mi

Dew point25°

Sun, 2547° / 40°

0.15

47 °

Hartley, Sunday, 25 October

Rain. High 47°, low 40°.

Pressure30.45 inHg

Wind8.1 mph E

Humidity66%

Visibility6.2 mi

Dew point35°

Mon, 2640° / 34°

0.77

40 °

Hartley, Monday, 26 October

Snow. High 40°, low 34°.

Pressure30.39 inHg

Wind11.8 mph NE

Humidity93%

Visibility2.5 mi

Dew point36°

Tue, 2754° / 34°

54 °

Hartley, Tuesday, 27 October

Light rain. High 54°, low 34°.

Pressure29.88 inHg

Wind10.5 mph SE

Humidity59%

Visibility6.2 mi

Dew point38°

Wed, 2866° / 36°

66 °

Hartley, Wednesday, 28 October

Partly cloudy. High 66°, low 36°.

Pressure29.94 inHg

Wind10.5 mph SE

Humidity52%

Visibility—

Dew point37°

Thu, 2955° / 42°

55 °

Hartley, Thursday, 29 October

Overcast. High 55°, low 42°.

Pressure30.00 inHg

Wind7.8 mph E

Humidity86%

Visibility—

Dew point47°

Fri, 3062° / 46°

62 °

Hartley, Friday, 30 October

Overcast. High 62°, low 46°.

Pressure29.94 inHg

Wind18 mph SE

Humidity72%

Visibility—

Dew point47°

Sat, 3154° / 47°

0.82

54 °

Hartley, Saturday, 31 October

Rain. High 54°, low 47°.

Pressure29.80 inHg

Wind22.4 mph NW

Humidity91%

Visibility—

Dew point50°

Sun, 0154° / 39°

54 °

Hartley, Sunday, 1 November

Partly cloudy. High 54°, low 39°.

Pressure30.21 inHg

Wind16.8 mph NW

Humidity36%

Visibility—

Dew point22°

Mon, 0260° / 41°

60 °

Hartley, Monday, 2 November

Overcast. High 60°, low 41°.

Pressure30.21 inHg

Wind13.5 mph NW

Humidity27%

Visibility—

Dew point21°

Tue, 0357° / 41°

57 °

Hartley, Tuesday, 3 November

Overcast. High 57°, low 41°.

Pressure30.06 inHg

Wind11.5 mph S

Humidity36%

Visibility—

Dew point24°

Wed, 0463° / 46°

63 °

Hartley, Wednesday, 4 November

Overcast. High 63°, low 46°.

Pressure29.88 inHg

Wind9.5 mph S

Humidity22%

Visibility—

Dew point18°

Thu, 0567° / 51°

67 °

Hartley, Thursday, 5 November

Clear. High 67°, low 51°.

Pressure29.77 inHg

Wind8.3 mph W

Humidity29%

Visibility—

Dew point29°

Fri, 0670° / 54°

70 °

Hartley, Friday, 6 November

Overcast. High 70°, low 54°.

Pressure30.09 inHg

Wind16.1 mph NW

Humidity34%

Visibility—

Dew point36°

Sat, 0772° / 54°

72 °

Hartley, Saturday, 7 November

Overcast. High 72°, low 54°.

Pressure30.21 inHg

Wind9.1 mph W

Humidity40%

Visibility—

Dew point40°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 0850° / 32°

0.06

50 °

Hartley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°

Average low32°

Average precipitation0.06 in

Chance of precipitation17%

Record high80° (1999)

Record low11° (1991)

Mon, 0947° / 30°

0.04

47 °

Hartley, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°

Average low30°

Average precipitation0.04 in

Chance of precipitation22%

Record high70° (2016)

Record low0° (1966)

Tue, 1047° / 28°

0.04

47 °

Hartley, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°

Average low28°

Average precipitation0.04 in

Chance of precipitation20%

Record high71° (1989)

Record low-5° (1986)

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)

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.