As of 04:28 MDT

Weather in Hartley, SD

39°

Hartley, Friday, 30 October, 04:28

Overcast. Feels like 39°. High 62°, low 38°.

Pressure30.12 inHg

Wind2.1 mph W

Humidity92%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Hartley, SD: average high 57.3°, average low 42.8°. That is 3.9° above the climate normal for October. Precipitation is expected on 6 days (about 2.2 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 9 November (69.7°), the coolest 12 November (34.6°).

57.3°/42.8°

Average high / low

+3.9°

Above normal

6 / 2

Wet days / normal

2.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	60.7°	52.4°	+4.6°
9 November – 18 November	51.8°	46.6°	+2.9°
19 November – 28 November	at normal	41.4°	—

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, 3167° / 47°

67 °

Hartley, Saturday, 31 October

Light rain. High 67°, low 47°.

Pressure29.97 inHg

Wind14.4 mph SE

Humidity70%

Visibility6.2 mi

Dew point54°

Sun, 0164° / 49°

64 °

Hartley, Sunday, 1 November

Light rain. High 64°, low 49°.

Pressure29.97 inHg

Wind3.4 mph SW

Humidity75%

Visibility6.2 mi

Dew point50°

Mon, 0258° / 45°

1.2

58 °

Hartley, Monday, 2 November

Rain. High 58°, low 45°.

Pressure29.74 inHg

Wind10.9 mph NW

Humidity84%

Visibility6.2 mi

Dew point53°

Tue, 0352° / 37°

0.1

52 °

Hartley, Tuesday, 3 November

Light rain. High 52°, low 37°.

Pressure30.27 inHg

Wind15.7 mph NW

Humidity63%

Visibility—

Dew point35°

Wed, 0459° / 36°

59 °

Hartley, Wednesday, 4 November

Overcast. High 59°, low 36°.

Pressure30.09 inHg

Wind11.9 mph NW

Humidity43%

Visibility—

Dew point31°

Thu, 0553° / 43°

53 °

Hartley, Thursday, 5 November

Overcast. High 53°, low 43°.

Pressure29.91 inHg

Wind12 mph SE

Humidity57%

Visibility—

Dew point35°

Fri, 0663° / 44°

63 °

Hartley, Friday, 6 November

Mostly clear. High 63°, low 44°.

Pressure29.80 inHg

Wind13.4 mph SE

Humidity52%

Visibility—

Dew point38°

Sat, 0760° / 45°

60 °

Hartley, Saturday, 7 November

Clear. High 60°, low 45°.

Pressure30.15 inHg

Wind18 mph W

Humidity37%

Visibility—

Dew point29°

Sun, 0868° / 46°

68 °

Hartley, Sunday, 8 November

Clear. High 68°, low 46°.

Pressure30.15 inHg

Wind16.6 mph S

Humidity34%

Visibility—

Dew point32°

Mon, 0970° / 53°

70 °

Hartley, Monday, 9 November

Overcast. High 70°, low 53°.

Pressure29.71 inHg

Wind25.5 mph SW

Humidity51%

Visibility—

Dew point46°

Tue, 1067° / 54°

67 °

Hartley, Tuesday, 10 November

Overcast. High 67°, low 54°.

Pressure29.35 inHg

Wind19.6 mph S

Humidity38%

Visibility—

Dew point37°

Wed, 1154° / 41°

0.09

54 °

Hartley, Wednesday, 11 November

Light rain. High 54°, low 41°.

Pressure29.26 inHg

Wind20.8 mph NW

Humidity81%

Visibility—

Dew point40°

Thu, 1242° / 35°

0.56

42 °

Hartley, Thursday, 12 November

Snow. High 42°, low 35°.

Pressure29.32 inHg

Wind26.8 mph W

Humidity70%

Visibility—

Dew point33°

Fri, 1341° / 35°

0.13

41 °

Hartley, Friday, 13 November

Snow. High 41°, low 35°.

Pressure29.62 inHg

Wind22.6 mph W

Humidity89%

Visibility—

Dew point37°

Sat, 1438° / 37°

0.07

38 °

Hartley, Saturday, 14 November

Light rain. High 38°, low 37°.

Pressure29.80 inHg

Wind18.4 mph W

Humidity94%

Visibility—

Dew point36°

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

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)

Wed, 2540° / 24°

0.02

40 °

Hartley, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.02 in

Chance of precipitation15%

Record high69° (1960)

Record low-4° (2010)

Thu, 2638° / 23°

0.04

38 °

Hartley, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high38°

Average low23°

Average precipitation0.04 in

Chance of precipitation25%

Record high63° (1998)

Record low-9° (1985)

Fri, 2737° / 22°

0.02

37 °

Hartley, Friday, 27 November

Climate normal for this date — 60-year average.

Average high37°

Average low22°

Average precipitation0.02 in

Chance of precipitation18%

Record high65° (2017)

Record low-12° (1985)

Sat, 2838° / 22°

0.02

38 °

Hartley, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high38°

Average low22°

Average precipitation0.02 in

Chance of precipitation12%

Record high59° (2002)

Record low-6° (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.