As of 21:00 MDT

Weather in Jolly Dump, SD

64°

Jolly Dump, Thursday, 8 October, 21:00

Clear. Feels like 62°. High 77°, low 47°.

Pressure29.94 inHg

Wind5.7 mph SW

Humidity25%

Visibility6.2 mi

Dew point32°

See detailed hourly forecast

Monthly outlook for Jolly Dump, SD: average high 61.5°, average low 42.2°. That is 2.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 10 October (85.5°), the coolest 17 October (29.7°).

61.5°/42.2°

Average high / low

+2.8°

Above normal

4 / 4

Wet days / normal

1.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	62.4°	57°	+3°
18 October – 27 October	60°	54.9°	+2.9°
28 October – 6 November	at normal	48.6°	—

October records over 66 years

86.9°4 October 1963All-time high

-5.4°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Mountain Plains (9 mi).

Fri, 0985° / 51°

85 °

Jolly Dump, Friday, 9 October

Partly cloudy. High 85°, low 51°.

Pressure29.65 inHg

Wind3.7 mph SW

Humidity22%

Visibility6.2 mi

Dew point38°

Sat, 1086° / 60°

86 °

Jolly Dump, Saturday, 10 October

Clear. High 86°, low 60°.

Pressure29.50 inHg

Wind7.2 mph W

Humidity19%

Visibility6.2 mi

Dew point36°

Sun, 1158° / 49°

58 °

Jolly Dump, Sunday, 11 October

Light rain. High 58°, low 49°.

Pressure29.88 inHg

Wind5.2 mph N

Humidity69%

Visibility6.2 mi

Dew point44°

Mon, 1256° / 44°

0.09

56 °

Jolly Dump, Monday, 12 October

Light rain. High 56°, low 44°.

Pressure29.80 inHg

Wind4.3 mph E

Humidity67%

Visibility6.2 mi

Dew point46°

Tue, 1349° / 39°

49 °

Jolly Dump, Tuesday, 13 October

Overcast. High 49°, low 39°.

Pressure30.15 inHg

Wind7.7 mph NW

Humidity58%

Visibility—

Dew point32°

Wed, 1455° / 38°

0.23

55 °

Jolly Dump, Wednesday, 14 October

Light rain. High 55°, low 38°.

Pressure29.83 inHg

Wind7.4 mph E

Humidity62%

Visibility—

Dew point40°

Thu, 1552° / 37°

0.65

52 °

Jolly Dump, Thursday, 15 October

Snow. High 52°, low 37°.

Pressure30.00 inHg

Wind23.8 mph NW

Humidity79%

Visibility—

Dew point39°

Fri, 1641° / 31°

0.18

41 °

Jolly Dump, Friday, 16 October

Snow. High 41°, low 31°.

Pressure30.62 inHg

Wind16.9 mph NW

Humidity57%

Visibility—

Dew point23°

Sat, 1764° / 30°

64 °

Jolly Dump, Saturday, 17 October

Clear. High 64°, low 30°.

Pressure30.21 inHg

Wind7.7 mph S

Humidity29%

Visibility—

Dew point23°

Sun, 1854° / 42°

54 °

Jolly Dump, Sunday, 18 October

Overcast. High 54°, low 42°.

Pressure30.42 inHg

Wind6.4 mph SW

Humidity34%

Visibility—

Dew point23°

Mon, 1956° / 39°

56 °

Jolly Dump, Monday, 19 October

Overcast. High 56°, low 39°.

Pressure30.18 inHg

Wind6.4 mph SE

Humidity55%

Visibility—

Dew point37°

Tue, 2062° / 42°

62 °

Jolly Dump, Tuesday, 20 October

Clear. High 62°, low 42°.

Pressure29.97 inHg

Wind23.2 mph NW

Humidity27%

Visibility—

Dew point24°

Wed, 2160° / 42°

60 °

Jolly Dump, Wednesday, 21 October

Overcast. High 60°, low 42°.

Pressure30.09 inHg

Wind8.3 mph E

Humidity38%

Visibility—

Dew point29°

Thu, 2257° / 40°

57 °

Jolly Dump, Thursday, 22 October

Clear. High 57°, low 40°.

Pressure30.36 inHg

Wind7.9 mph SE

Humidity39%

Visibility—

Dew point28°

Fri, 2372° / 45°

72 °

Jolly Dump, Friday, 23 October

Clear. High 72°, low 45°.

Pressure29.88 inHg

Wind8.8 mph SW

Humidity17%

Visibility—

Dew point22°

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

Sat, 2454° / 36°

0.04

54 °

Jolly Dump, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high54°

Average low36°

Average precipitation0.04 in

Chance of precipitation23%

Record high73° (1965)

Record low13° (2020)

Sun, 2555° / 36°

0.03

55 °

Jolly Dump, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°

Average low36°

Average precipitation0.03 in

Chance of precipitation15%

Record high75° (1989)

Record low2° (2020)

Mon, 2654° / 35°

0.07

54 °

Jolly Dump, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°

Average low35°

Average precipitation0.07 in

Chance of precipitation22%

Record high72° (1960)

Record low-3° (2020)

Tue, 2752° / 33°

0.05

52 °

Jolly Dump, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high52°

Average low33°

Average precipitation0.05 in

Chance of precipitation27%

Record high75° (2016)

Record low14° (2023)

Wed, 2852° / 34°

0.06

52 °

Jolly Dump, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°

Average low34°

Average precipitation0.06 in

Chance of precipitation22%

Record high74° (2016)

Record low7° (1991)

Thu, 2950° / 33°

0.11

50 °

Jolly Dump, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°

Average low33°

Average precipitation0.11 in

Chance of precipitation37%

Record high76° (1968)

Record low-2° (1991)

Fri, 3048° / 31°

0.04

48 °

Jolly Dump, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°

Average low31°

Average precipitation0.04 in

Chance of precipitation27%

Record high73° (1968)

Record low-5° (1991)

Sat, 3148° / 31°

0.05

48 °

Jolly Dump, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°

Average low31°

Average precipitation0.05 in

Chance of precipitation23%

Record high71° (1999)

Record low1° (1991)

Sun, 0148° / 31°

0.08

48 °

Jolly Dump, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°

Average low31°

Average precipitation0.08 in

Chance of precipitation25%

Record high70° (1965)

Record low0° (2002)

Mon, 0247° / 31°

0.05

47 °

Jolly Dump, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°

Average low31°

Average precipitation0.05 in

Chance of precipitation25%

Record high73° (2008)

Record low-8° (1991)

Tue, 0347° / 31°

0.04

47 °

Jolly Dump, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low31°

Average precipitation0.04 in

Chance of precipitation23%

Record high71° (2020)

Record low-1° (1991)

Wed, 0450° / 31°

0.02

50 °

Jolly Dump, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°

Average low31°

Average precipitation0.02 in

Chance of precipitation17%

Record high71° (1978)

Record low8° (1967)

Thu, 0548° / 31°

0.04

48 °

Jolly Dump, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°

Average low31°

Average precipitation0.04 in

Chance of precipitation25%

Record high72° (2020)

Record low3° (2003)

Fri, 0648° / 30°

0.06

48 °

Jolly Dump, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.06 in

Chance of precipitation18%

Record high70° (2020)

Record low7° (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 Jolly Dump, 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 Jolly Dump, 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.