As of 09:08 MDT

Weather in Jolly, SD

47°

Jolly, Sunday, 11 October, 09:08

Overcast. Feels like 45°. High 60°, low 47°.

Pressure29.91 inHg

Wind4.6 mph NE

Humidity93%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Monthly outlook for Jolly, SD: average high 63.9°, average low 45.3°. That is 4.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 19 October (76.1°), the coolest 16 October (35.1°).

63.9°/45.3°

Average high / low

+4.6°

Above normal

3 / 4

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 October – 20 October	62.5°	56.3°	+3.4°
21 October – 30 October	66.3°	52.9°	+7.5°
31 October – 9 November	at normal	47.4°	—

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 (11 mi).

Mon, 1254° / 43°

54 °

Jolly, Monday, 12 October

Overcast. High 54°, low 43°.

Pressure29.88 inHg

Wind18.6 mph NW

Humidity63%

Visibility6.2 mi

Dew point41°

Tue, 1350° / 41°

0.21

50 °

Jolly, Tuesday, 13 October

Rain. High 50°, low 41°.

Pressure30.06 inHg

Wind4.5 mph E

Humidity76%

Visibility6.2 mi

Dew point40°

Wed, 1455° / 45°

0.08

55 °

Jolly, Wednesday, 14 October

Light rain. High 55°, low 45°.

Pressure30.18 inHg

Wind6.3 mph E

Humidity53%

Visibility6.2 mi

Dew point38°

Thu, 1559° / 46°

0.14

59 °

Jolly, Thursday, 15 October

Light rain. High 59°, low 46°.

Pressure30.39 inHg

Wind17.6 mph NW

Humidity46%

Visibility—

Dew point35°

Fri, 1662° / 35°

62 °

Jolly, Friday, 16 October

Clear. High 62°, low 35°.

Pressure30.56 inHg

Wind8.4 mph SE

Humidity40%

Visibility—

Dew point28°

Sat, 1772° / 41°

72 °

Jolly, Saturday, 17 October

Clear. High 72°, low 41°.

Pressure30.00 inHg

Wind5.9 mph SW

Humidity24%

Visibility—

Dew point25°

Sun, 1871° / 54°

71 °

Jolly, Sunday, 18 October

Overcast. High 71°, low 54°.

Pressure30.00 inHg

Wind13.2 mph NW

Humidity26%

Visibility—

Dew point31°

Mon, 1976° / 50°

76 °

Jolly, Monday, 19 October

Overcast. High 76°, low 50°.

Pressure29.88 inHg

Wind7.8 mph E

Humidity24%

Visibility—

Dew point30°

Tue, 2067° / 52°

67 °

Jolly, Tuesday, 20 October

Mostly clear. High 67°, low 52°.

Pressure29.74 inHg

Wind21.1 mph NW

Humidity28%

Visibility—

Dew point31°

Wed, 2166° / 45°

66 °

Jolly, Wednesday, 21 October

Clear. High 66°, low 45°.

Pressure29.94 inHg

Wind8.8 mph NE

Humidity32%

Visibility—

Dew point31°

Thu, 2266° / 46°

66 °

Jolly, Thursday, 22 October

Overcast. High 66°, low 46°.

Pressure30.03 inHg

Wind7.4 mph NE

Humidity35%

Visibility—

Dew point32°

Fri, 2375° / 46°

75 °

Jolly, Friday, 23 October

Clear. High 75°, low 46°.

Pressure30.03 inHg

Wind8.3 mph SE

Humidity18%

Visibility—

Dew point22°

Sat, 2468° / 51°

68 °

Jolly, Saturday, 24 October

Clear. High 68°, low 51°.

Pressure30.06 inHg

Wind10 mph W

Humidity19%

Visibility—

Dew point20°

Sun, 2557° / 43°

57 °

Jolly, Sunday, 25 October

Mostly clear. High 57°, low 43°.

Pressure30.33 inHg

Wind14.9 mph NW

Humidity30%

Visibility—

Dew point23°

Mon, 2667° / 39°

67 °

Jolly, Monday, 26 October

Overcast. High 67°, low 39°.

Pressure29.97 inHg

Wind6.9 mph W

Humidity22%

Visibility—

Dew point18°

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

Tue, 2752° / 33°

0.05

52 °

Jolly, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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)

Sat, 0748° / 30°

0.04

48 °

Jolly, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.04 in

Chance of precipitation17%

Record high73° (1999)

Record low5° (1991)

Sun, 0846° / 30°

0.06

46 °

Jolly, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°

Average low30°

Average precipitation0.06 in

Chance of precipitation22%

Record high74° (1999)

Record low7° (2000)

Mon, 0943° / 28°

0.07

43 °

Jolly, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°

Average low28°

Average precipitation0.07 in

Chance of precipitation28%

Record high70° (2016)

Record low0° (1966)

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, 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, 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.