As of 19:40 CDT

Weather in Clear Lake, SD

39°

Clear Lake, Friday, 16 October, 19:40

Clear. Feels like 35°. High 49°, low 37°.

Pressure30.56 inHg

Wind5.1 mph W

Humidity64%

Visibility6.2 mi

Dew point28°

See detailed hourly forecast

Monthly outlook for Clear Lake, SD: average high 58.7°, average low 44.4°. That is 2.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 22 October (74.6°), the coolest 26 October (33.5°).

58.7°/44.4°

Average high / low

+2.6°

Above normal

3 / 3

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
16 October – 25 October	60.9°	55.3°	+3.1°
26 October – 4 November	55.1°	50.3°	+2.7°
5 November – 14 November	at normal	43.8°	—

October records over 66 years

90.5°1 October 2023All-time high

10.2°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Gary (11 mi).

Sat, 1759° / 35°

59 °

Clear Lake, Saturday, 17 October

Clear. High 59°, low 35°.

Pressure30.21 inHg

Wind23.7 mph SW

Humidity49%

Visibility6.2 mi

Dew point34°

Sun, 1863° / 44°

63 °

Clear Lake, Sunday, 18 October

Clear. High 63°, low 44°.

Pressure30.06 inHg

Wind14.1 mph SW

Humidity52%

Visibility6.2 mi

Dew point40°

Mon, 1960° / 41°

60 °

Clear Lake, Monday, 19 October

Clear. High 60°, low 41°.

Pressure30.21 inHg

Wind6.1 mph E

Humidity66%

Visibility6.2 mi

Dew point44°

Tue, 2064° / 46°

64 °

Clear Lake, Tuesday, 20 October

Clear. High 64°, low 46°.

Pressure30.15 inHg

Wind11.8 mph S

Humidity71%

Visibility6.2 mi

Dew point49°

Wed, 2167° / 51°

0.01

67 °

Clear Lake, Wednesday, 21 October

Light rain. High 67°, low 51°.

Pressure30.12 inHg

Wind12.8 mph S

Humidity68%

Visibility—

Dew point52°

Thu, 2275° / 52°

0.01

75 °

Clear Lake, Thursday, 22 October

Light rain. High 75°, low 52°.

Pressure30.03 inHg

Wind10.3 mph E

Humidity55%

Visibility—

Dew point52°

Fri, 2367° / 59°

0.22

67 °

Clear Lake, Friday, 23 October

Light rain. High 67°, low 59°.

Pressure29.83 inHg

Wind22.9 mph S

Humidity62%

Visibility—

Dew point52°

Sat, 2461° / 47°

0.11

61 °

Clear Lake, Saturday, 24 October

Light rain. High 61°, low 47°.

Pressure30.09 inHg

Wind19 mph S

Humidity40%

Visibility—

Dew point34°

Sun, 2546° / 41°

0.26

46 °

Clear Lake, Sunday, 25 October

Rain. High 46°, low 41°.

Pressure30.24 inHg

Wind14.1 mph NW

Humidity63%

Visibility—

Dew point33°

Mon, 2648° / 34°

48 °

Clear Lake, Monday, 26 October

Clear. High 48°, low 34°.

Pressure30.36 inHg

Wind11.7 mph NW

Humidity43%

Visibility—

Dew point22°

Tue, 2759° / 37°

59 °

Clear Lake, Tuesday, 27 October

Clear. High 59°, low 37°.

Pressure30.12 inHg

Wind16.3 mph SW

Humidity46%

Visibility—

Dew point35°

Wed, 2855° / 49°

0.03

55 °

Clear Lake, Wednesday, 28 October

Light rain. High 55°, low 49°.

Pressure29.80 inHg

Wind20.1 mph S

Humidity76%

Visibility—

Dew point46°

Thu, 2954° / 48°

0.01

54 °

Clear Lake, Thursday, 29 October

Light rain. High 54°, low 48°.

Pressure29.68 inHg

Wind24.7 mph W

Humidity66%

Visibility—

Dew point40°

Fri, 3052° / 41°

52 °

Clear Lake, Friday, 30 October

Overcast. High 52°, low 41°.

Pressure30.09 inHg

Wind15.7 mph NW

Humidity62%

Visibility—

Dew point37°

Sat, 3162° / 47°

0.02

62 °

Clear Lake, Saturday, 31 October

Light rain. High 62°, low 47°.

Pressure29.59 inHg

Wind18.2 mph S

Humidity65%

Visibility—

Dew point44°

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

Sun, 0149° / 35°

0.06

49 °

Clear Lake, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.06 in

Chance of precipitation22%

Record high71° (2022)

Record low16° (1984)

Mon, 0248° / 34°

0.04

48 °

Clear Lake, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.04 in

Chance of precipitation15%

Record high72° (1978)

Record low10° (1991)

Tue, 0347° / 34°

0.04

47 °

Clear Lake, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.04 in

Chance of precipitation22%

Record high73° (1978)

Record low6° (1991)

Wed, 0448° / 32°

0.02

48 °

Clear Lake, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°

Average low32°

Average precipitation0.02 in

Chance of precipitation12%

Record high73° (2020)

Record low-3° (1991)

Thu, 0548° / 33°

0.04

48 °

Clear Lake, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.04 in

Chance of precipitation18%

Record high70° (2016)

Record low9° (1991)

Fri, 0647° / 32°

0.04

47 °

Clear Lake, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.04 in

Chance of precipitation17%

Record high74° (2020)

Record low-7° (1991)

Sat, 0747° / 31°

0.02

47 °

Clear Lake, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°

Average low31°

Average precipitation0.02 in

Chance of precipitation5%

Record high71° (2020)

Record low-9° (1991)

Sun, 0846° / 31°

0.05

46 °

Clear Lake, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.05 in

Chance of precipitation17%

Record high72° (1999)

Record low1° (2003)

Mon, 0944° / 30°

0.11

44 °

Clear Lake, Monday, 9 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.11 in

Chance of precipitation22%

Record high69° (1999)

Record low12° (2018)

Tue, 1041° / 28°

0.08

41 °

Clear Lake, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high41°

Average low28°

Average precipitation0.08 in

Chance of precipitation27%

Record high62° (2016)

Record low7° (2008)

Wed, 1140° / 26°

0.03

40 °

Clear Lake, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.03 in

Chance of precipitation18%

Record high64° (2005)

Record low3° (1966)

Thu, 1240° / 26°

0.06

40 °

Clear Lake, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.06 in

Chance of precipitation22%

Record high66° (1999)

Record low-2° (1966)

Fri, 1342° / 28°

0.04

42 °

Clear Lake, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.04 in

Chance of precipitation22%

Record high71° (1999)

Record low-1° (1982)

Sat, 1442° / 29°

0.03

42 °

Clear Lake, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.03 in

Chance of precipitation13%

Record high70° (2025)

Record low0° (2014)

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 Clear Lake, 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 Clear Lake, 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.