As of 06:09 CDT

Weather in Clear Lake, SD

44°

Clear Lake, Tuesday, 20 October, 06:09

Clear. Feels like 38°. High 68°, low 43°.

Pressure30.21 inHg

Wind10.6 mph S

Humidity87%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Monthly outlook for Clear Lake, SD: average high 54.6°, average low 37.4°. That is 1.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 22 October (71°), the coolest 28 October (20.6°).

54.6°/37.4°

Average high / low

+1.5°

Above normal

2 / 3

Wet days / normal

0.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
20 October – 29 October	56.5°	53.9°	+1.4°
30 October – 8 November	51.5°	48.1°	+1.9°
9 November – 18 November	at normal	41.3°	—

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).

Wed, 2168° / 43°

68 °

Clear Lake, Wednesday, 21 October

Clear. High 68°, low 43°.

Pressure30.21 inHg

Wind7.4 mph NE

Humidity67%

Visibility6.2 mi

Dew point51°

Thu, 2271° / 52°

71 °

Clear Lake, Thursday, 22 October

Clear. High 71°, low 52°.

Pressure30.15 inHg

Wind11 mph S

Humidity68%

Visibility6.2 mi

Dew point56°

Fri, 2366° / 57°

0.07

66 °

Clear Lake, Friday, 23 October

Light rain. High 66°, low 57°.

Pressure29.97 inHg

Wind19.1 mph S

Humidity77%

Visibility3.4 mi

Dew point52°

Sat, 2462° / 48°

0.03

62 °

Clear Lake, Saturday, 24 October

Light rain. High 62°, low 48°.

Pressure30.03 inHg

Wind24.8 mph S

Humidity73%

Visibility—

Dew point53°

Sun, 2551° / 42°

51 °

Clear Lake, Sunday, 25 October

Overcast. High 51°, low 42°.

Pressure30.47 inHg

Wind8 mph NW

Humidity51%

Visibility—

Dew point31°

Mon, 2647° / 35°

0.02

47 °

Clear Lake, Monday, 26 October

Light snow. High 47°, low 35°.

Pressure30.36 inHg

Wind9.1 mph NW

Humidity33%

Visibility—

Dew point17°

Tue, 2734° / 23°

34 °

Clear Lake, Tuesday, 27 October

Clear. High 34°, low 23°.

Pressure30.65 inHg

Wind17 mph NW

Humidity32%

Visibility—

Dew point6°

Wed, 2845° / 21°

45 °

Clear Lake, Wednesday, 28 October

Partly cloudy. High 45°, low 21°.

Pressure30.42 inHg

Wind13.5 mph W

Humidity21%

Visibility—

Dew point1°

Thu, 2952° / 32°

52 °

Clear Lake, Thursday, 29 October

Clear. High 52°, low 32°.

Pressure30.00 inHg

Wind10.8 mph SW

Humidity17%

Visibility—

Dew point5°

Fri, 3047° / 28°

47 °

Clear Lake, Friday, 30 October

Overcast. High 47°, low 28°.

Pressure30.09 inHg

Wind6.9 mph W

Humidity47%

Visibility—

Dew point23°

Sat, 3144° / 30°

44 °

Clear Lake, Saturday, 31 October

Clear. High 44°, low 30°.

Pressure30.21 inHg

Wind8.2 mph NE

Humidity42%

Visibility—

Dew point20°

Sun, 0148° / 27°

48 °

Clear Lake, Sunday, 1 November

Overcast. High 48°, low 27°.

Pressure30.30 inHg

Wind8.4 mph SE

Humidity34%

Visibility—

Dew point16°

Mon, 0252° / 36°

0.07

52 °

Clear Lake, Monday, 2 November

Light rain. High 52°, low 36°.

Pressure30.18 inHg

Wind14 mph SW

Humidity66%

Visibility—

Dew point39°

Tue, 0356° / 40°

56 °

Clear Lake, Tuesday, 3 November

Clear. High 56°, low 40°.

Pressure30.12 inHg

Wind13.2 mph SW

Humidity45%

Visibility—

Dew point30°

Wed, 0461° / 40°

61 °

Clear Lake, Wednesday, 4 November

Partly cloudy. High 61°, low 40°.

Pressure29.85 inHg

Wind15.8 mph S

Humidity31%

Visibility—

Dew point26°

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

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)

Sun, 1542° / 28°

0.04

42 °

Clear Lake, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.04 in

Chance of precipitation20%

Record high65° (2001)

Record low0° (2014)

Mon, 1642° / 28°

0.07

42 °

Clear Lake, Monday, 16 November

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.07 in

Chance of precipitation20%

Record high69° (2001)

Record low2° (2014)

Tue, 1740° / 27°

0.05

40 °

Clear Lake, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.05 in

Chance of precipitation15%

Record high65° (2001)

Record low6° (2014)

Wed, 1840° / 26°

0.08

40 °

Clear Lake, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.08 in

Chance of precipitation27%

Record high61° (1999)

Record low4° (1989)

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.