As of 00:37 CDT

Weather in Chelsea, SD

39°

Chelsea, Monday, 26 October, 00:37

Light rain. Feels like 33°. High 42°, low 31°.

Pressure30.53 inHg

Wind8.7 mph NE

Humidity90%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Chelsea, SD: average high 55°, average low 40.5°. That is 3.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 6 November (70.2°), the coolest 8 November (30.9°).

55°/40.5°

Average high / low

+3.4°

Above normal

2 / 3

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
26 October – 4 November	55.2°	50.7°	+2.5°
5 November – 14 November	54.7°	44.1°	+5.8°
15 November – 24 November	at normal	39.1°	—

October records over 66 years

92.3°5 October 1963All-time high

6.1°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Cresbard (10 mi).

Tue, 2753° / 31°

53 °

Chelsea, Tuesday, 27 October

Light snow. High 53°, low 31°.

Pressure30.06 inHg

Wind8.3 mph S

Humidity80%

Visibility6.2 mi

Dew point39°

Wed, 2855° / 39°

0.01

55 °

Chelsea, Wednesday, 28 October

Light rain. High 55°, low 39°.

Pressure29.94 inHg

Wind5.3 mph SE

Humidity94%

Visibility6.2 mi

Dew point47°

Thu, 2957° / 36°

57 °

Chelsea, Thursday, 29 October

Overcast. High 57°, low 36°.

Pressure30.18 inHg

Wind3 mph SE

Humidity80%

Visibility6.2 mi

Dew point41°

Fri, 3056° / 42°

0.02

56 °

Chelsea, Friday, 30 October

Light rain. High 56°, low 42°.

Pressure30.09 inHg

Wind11 mph NE

Humidity76%

Visibility—

Dew point43°

Sat, 3155° / 48°

0.02

55 °

Chelsea, Saturday, 31 October

Light rain. High 55°, low 48°.

Pressure30.03 inHg

Wind9.2 mph E

Humidity87%

Visibility—

Dew point50°

Sun, 0165° / 49°

65 °

Chelsea, Sunday, 1 November

Overcast. High 65°, low 49°.

Pressure29.94 inHg

Wind11.4 mph SE

Humidity67%

Visibility—

Dew point48°

Mon, 0260° / 45°

0.05

60 °

Chelsea, Monday, 2 November

Light rain. High 60°, low 45°.

Pressure29.85 inHg

Wind14.8 mph NW

Humidity70%

Visibility—

Dew point49°

Tue, 0357° / 40°

57 °

Chelsea, Tuesday, 3 November

Clear. High 57°, low 40°.

Pressure30.15 inHg

Wind6.2 mph E

Humidity36%

Visibility—

Dew point27°

Wed, 0453° / 41°

53 °

Chelsea, Wednesday, 4 November

Overcast. High 53°, low 41°.

Pressure30.33 inHg

Wind12.8 mph SE

Humidity44%

Visibility—

Dew point30°

Thu, 0553° / 46°

53 °

Chelsea, Thursday, 5 November

Overcast. High 53°, low 46°.

Pressure30.15 inHg

Wind13.9 mph S

Humidity83%

Visibility—

Dew point44°

Fri, 0670° / 49°

70 °

Chelsea, Friday, 6 November

Overcast. High 70°, low 49°.

Pressure29.56 inHg

Wind12.8 mph S

Humidity69%

Visibility—

Dew point51°

Sat, 0754° / 40°

0.02

54 °

Chelsea, Saturday, 7 November

Light rain. High 54°, low 40°.

Pressure29.83 inHg

Wind16.6 mph NW

Humidity72%

Visibility—

Dew point41°

Sun, 0845° / 31°

45 °

Chelsea, Sunday, 8 November

Clear. High 45°, low 31°.

Pressure30.39 inHg

Wind9.8 mph NW

Humidity49%

Visibility—

Dew point22°

Mon, 0956° / 40°

56 °

Chelsea, Monday, 9 November

Overcast. High 56°, low 40°.

Pressure29.91 inHg

Wind11.3 mph SE

Humidity63%

Visibility—

Dew point39°

Tue, 1050° / 42°

50 °

Chelsea, Tuesday, 10 November

Overcast. High 50°, low 42°.

Pressure30.00 inHg

Wind11.7 mph NE

Humidity58%

Visibility—

Dew point35°

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

Wed, 1141° / 25°

0.02

41 °

Chelsea, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°

Average low25°

Average precipitation0.02 in

Chance of precipitation12%

Record high63° (2005)

Record low0° (1986)

Thu, 1241° / 25°

0.05

41 °

Chelsea, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high41°

Average low25°

Average precipitation0.05 in

Chance of precipitation18%

Record high66° (1999)

Record low-3° (1966)

Fri, 1344° / 26°

0.03

44 °

Chelsea, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.03 in

Chance of precipitation18%

Record high68° (1999)

Record low-4° (1986)

Sat, 1442° / 27°

0.02

42 °

Chelsea, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high42°

Average low27°

Average precipitation0.02 in

Chance of precipitation17%

Record high65° (2025)

Record low-6° (2014)

Sun, 1542° / 26°

0.02

42 °

Chelsea, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high42°

Average low26°

Average precipitation0.02 in

Chance of precipitation18%

Record high61° (2001)

Record low5° (2014)

Mon, 1643° / 26°

0.04

43 °

Chelsea, Monday, 16 November

Climate normal for this date — 60-year average.

Average high43°

Average low26°

Average precipitation0.04 in

Chance of precipitation13%

Record high67° (2001)

Record low-1° (2014)

Tue, 1740° / 26°

0.02

40 °

Chelsea, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.02 in

Chance of precipitation15%

Record high65° (2001)

Record low2° (1997)

Wed, 1840° / 24°

0.04

40 °

Chelsea, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.04 in

Chance of precipitation22%

Record high57° (2001)

Record low0° (1996)

Thu, 1940° / 26°

0.05

40 °

Chelsea, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.05 in

Chance of precipitation20%

Record high61° (1989)

Record low6° (1985)

Fri, 2038° / 24°

0.02

38 °

Chelsea, Friday, 20 November

Climate normal for this date — 60-year average.

Average high38°

Average low24°

Average precipitation0.02 in

Chance of precipitation12%

Record high61° (1962)

Record low-3° (1978)

Sat, 2138° / 22°

0.02

38 °

Chelsea, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high38°

Average low22°

Average precipitation0.02 in

Chance of precipitation12%

Record high61° (1960)

Record low-8° (1985)

Sun, 2238° / 22°

0.02

38 °

Chelsea, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high38°

Average low22°

Average precipitation0.02 in

Chance of precipitation20%

Record high59° (2006)

Record low-4° (1977)

Mon, 2336° / 22°

0.02

36 °

Chelsea, Monday, 23 November

Climate normal for this date — 60-year average.

Average high36°

Average low22°

Average precipitation0.02 in

Chance of precipitation15%

Record high56° (2017)

Record low-8° (1985)

Tue, 2437° / 21°

0.02

37 °

Chelsea, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.02 in

Chance of precipitation12%

Record high61° (1990)

Record low-16° (1985)

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 Chelsea, 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 Chelsea, 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.