As of 04:26 CDT

Weather in Clear Lake, SD

48°

Clear Lake, Sunday, 18 October, 04:26

Overcast. Feels like 40°. High 66°, low 45°.

Pressure29.97 inHg

Wind24.3 mph SW

Humidity66%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Clear Lake, SD: average high 62.8°, average low 44°. That is 5.4° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 22 October (69.5°), the coolest 25 October (32.5°).

62.8°/44°

Average high / low

+5.4°

Above normal

0 / 3

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
18 October – 27 October	62.8°	54.7°	+4.5°
28 October – 6 November	62.8°	49.1°	+7.6°
7 November – 16 November	at normal	42.7°	—

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).

Mon, 1960° / 40°

60 °

Clear Lake, Monday, 19 October

Clear. High 60°, low 40°.

Pressure30.30 inHg

Wind7.5 mph NE

Humidity70%

Visibility6.2 mi

Dew point44°

Tue, 2064° / 46°

64 °

Clear Lake, Tuesday, 20 October

Clear. High 64°, low 46°.

Pressure30.21 inHg

Wind13 mph S

Humidity65%

Visibility6.2 mi

Dew point47°

Wed, 2164° / 50°

64 °

Clear Lake, Wednesday, 21 October

Clear. High 64°, low 50°.

Pressure30.15 inHg

Wind3 mph N

Humidity72%

Visibility6.2 mi

Dew point52°

Thu, 2270° / 49°

70 °

Clear Lake, Thursday, 22 October

Partly cloudy. High 70°, low 49°.

Pressure30.18 inHg

Wind10.4 mph S

Humidity66%

Visibility—

Dew point53°

Fri, 2369° / 56°

0.02

69 °

Clear Lake, Friday, 23 October

Light rain. High 69°, low 56°.

Pressure29.97 inHg

Wind23.7 mph S

Humidity55%

Visibility—

Dew point48°

Sat, 2464° / 43°

64 °

Clear Lake, Saturday, 24 October

Overcast. High 64°, low 43°.

Pressure30.15 inHg

Wind25.7 mph W

Humidity65%

Visibility—

Dew point39°

Sun, 2551° / 33°

51 °

Clear Lake, Sunday, 25 October

Partly cloudy. High 51°, low 33°.

Pressure30.50 inHg

Wind9.1 mph NW

Humidity27%

Visibility—

Dew point14°

Mon, 2662° / 42°

62 °

Clear Lake, Monday, 26 October

Clear. High 62°, low 42°.

Pressure30.03 inHg

Wind21 mph SW

Humidity47%

Visibility—

Dew point36°

Tue, 2758° / 37°

58 °

Clear Lake, Tuesday, 27 October

Clear. High 58°, low 37°.

Pressure30.09 inHg

Wind12.9 mph SE

Humidity46%

Visibility—

Dew point31°

Wed, 2862° / 45°

62 °

Clear Lake, Wednesday, 28 October

Partly cloudy. High 62°, low 45°.

Pressure29.74 inHg

Wind19.6 mph SW

Humidity28%

Visibility—

Dew point28°

Thu, 2957° / 41°

57 °

Clear Lake, Thursday, 29 October

Overcast. High 57°, low 41°.

Pressure29.77 inHg

Wind13.3 mph W

Humidity32%

Visibility—

Dew point25°

Fri, 3065° / 45°

65 °

Clear Lake, Friday, 30 October

Overcast. High 65°, low 45°.

Pressure29.53 inHg

Wind14.3 mph SW

Humidity33%

Visibility—

Dew point31°

Sat, 3168° / 47°

68 °

Clear Lake, Saturday, 31 October

Overcast. High 68°, low 47°.

Pressure29.53 inHg

Wind16.7 mph SW

Humidity25%

Visibility—

Dew point28°

Sun, 0169° / 50°

69 °

Clear Lake, Sunday, 1 November

Mostly clear. High 69°, low 50°.

Pressure29.85 inHg

Wind16.1 mph NW

Humidity21%

Visibility—

Dew point25°

Mon, 0257° / 38°

57 °

Clear Lake, Monday, 2 November

Clear. High 57°, low 38°.

Pressure30.30 inHg

Wind12.1 mph E

Humidity38%

Visibility—

Dew point26°

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

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)

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)

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.