As of 06:53 CDT

Weather in Hammer, SD

44°

Hammer, Thursday, 8 October, 06:53

Overcast. Feels like 42°. High 69°, low 44°.

Pressure30.09 inHg

Wind4 mph W

Humidity75%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Hammer, SD: average high 64.8°, average low 47.1°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 10 October (84.3°), the coolest 13 October (42.4°).

64.8°/47.1°

Average high / low

+4.4°

Above normal

4 / 4

Wet days / normal

1.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	64.3°	58.1°	+3.4°
18 October – 27 October	65.6°	54.1°	+6.4°
28 October – 6 November	at normal	48.1°	—

October records over 66 years

88.5°1 October 1992All-time high

5.4°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — New Effington (5 mi).

Fri, 0973° / 43°

73 °

Hammer, Friday, 9 October

Partly cloudy. High 73°, low 43°.

Pressure29.91 inHg

Wind13.6 mph SE

Humidity47%

Visibility6.2 mi

Dew point43°

Sat, 1084° / 62°

84 °

Hammer, Saturday, 10 October

Partly cloudy. High 84°, low 62°.

Pressure29.50 inHg

Wind22.7 mph S

Humidity33%

Visibility6.2 mi

Dew point49°

Sun, 1172° / 51°

72 °

Hammer, Sunday, 11 October

Overcast. High 72°, low 51°.

Pressure29.71 inHg

Wind5.2 mph N

Humidity63%

Visibility6.2 mi

Dew point56°

Mon, 1253° / 47°

0.13

53 °

Hammer, Monday, 12 October

Light rain. High 53°, low 47°.

Pressure29.85 inHg

Wind14.1 mph NW

Humidity75%

Visibility—

Dew point44°

Tue, 1352° / 42°

52 °

Hammer, Tuesday, 13 October

Overcast. High 52°, low 42°.

Pressure30.18 inHg

Wind14.4 mph NW

Humidity62%

Visibility—

Dew point35°

Wed, 1468° / 50°

0.72

68 °

Hammer, Wednesday, 14 October

Rain. High 68°, low 50°.

Pressure29.62 inHg

Wind17 mph SE

Humidity85%

Visibility—

Dew point50°

Thu, 1568° / 50°

0.04

68 °

Hammer, Thursday, 15 October

Light rain. High 68°, low 50°.

Pressure29.38 inHg

Wind24.3 mph W

Humidity62%

Visibility—

Dew point54°

Fri, 1648° / 42°

48 °

Hammer, Friday, 16 October

Overcast. High 48°, low 42°.

Pressure30.30 inHg

Wind23 mph NW

Humidity79%

Visibility—

Dew point38°

Sat, 1756° / 43°

0.06

56 °

Hammer, Saturday, 17 October

Light rain. High 56°, low 43°.

Pressure30.39 inHg

Wind10.4 mph SW

Humidity50%

Visibility—

Dew point33°

Sun, 1860° / 43°

60 °

Hammer, Sunday, 18 October

Clear. High 60°, low 43°.

Pressure30.15 inHg

Wind8.4 mph SE

Humidity53%

Visibility—

Dew point38°

Mon, 1962° / 43°

62 °

Hammer, Monday, 19 October

Clear. High 62°, low 43°.

Pressure30.12 inHg

Wind7.2 mph SE

Humidity47%

Visibility—

Dew point36°

Tue, 2064° / 46°

64 °

Hammer, Tuesday, 20 October

Clear. High 64°, low 46°.

Pressure30.09 inHg

Wind7.5 mph NW

Humidity42%

Visibility—

Dew point37°

Wed, 2178° / 47°

78 °

Hammer, Wednesday, 21 October

Overcast. High 78°, low 47°.

Pressure29.65 inHg

Wind20.5 mph S

Humidity44%

Visibility—

Dew point43°

Thu, 2270° / 53°

0.02

70 °

Hammer, Thursday, 22 October

Light rain. High 70°, low 53°.

Pressure29.35 inHg

Wind24.6 mph SW

Humidity28%

Visibility—

Dew point28°

Fri, 2360° / 46°

60 °

Hammer, Friday, 23 October

Partly cloudy. High 60°, low 46°.

Pressure29.59 inHg

Wind9.8 mph SW

Humidity30%

Visibility—

Dew point26°

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

Sat, 2453° / 37°

0.04

53 °

Hammer, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.04 in

Chance of precipitation15%

Record high75° (1989)

Record low16° (2020)

Sun, 2553° / 38°

0.04

53 °

Hammer, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.04 in

Chance of precipitation13%

Record high80° (1989)

Record low18° (2020)

Mon, 2653° / 37°

0.04

53 °

Hammer, Monday, 26 October

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.04 in

Chance of precipitation13%

Record high78° (1989)

Record low7° (2020)

Tue, 2752° / 37°

0.06

52 °

Hammer, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.06 in

Chance of precipitation27%

Record high71° (1983)

Record low5° (2020)

Wed, 2851° / 36°

0.03

51 °

Hammer, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.03 in

Chance of precipitation13%

Record high71° (2024)

Record low21° (2017)

Thu, 2950° / 35°

0.07

50 °

Hammer, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.07 in

Chance of precipitation30%

Record high64° (2007)

Record low19° (2020)

Fri, 3049° / 35°

0.09

49 °

Hammer, Friday, 30 October

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.09 in

Chance of precipitation30%

Record high68° (1965)

Record low17° (1991)

Sat, 3149° / 34°

0.09

49 °

Hammer, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.09 in

Chance of precipitation23%

Record high71° (1990)

Record low19° (1996)

Sun, 0148° / 34°

0.07

48 °

Hammer, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.07 in

Chance of precipitation27%

Record high73° (1990)

Record low13° (1984)

Mon, 0248° / 33°

0.04

48 °

Hammer, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.04 in

Chance of precipitation20%

Record high72° (1978)

Record low11° (1991)

Tue, 0347° / 33°

0.04

47 °

Hammer, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.04 in

Chance of precipitation20%

Record high70° (1978)

Record low7° (1991)

Wed, 0446° / 31°

0.03

46 °

Hammer, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.03 in

Chance of precipitation13%

Record high70° (2015)

Record low4° (1995)

Thu, 0547° / 32°

0.03

47 °

Hammer, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.03 in

Chance of precipitation18%

Record high69° (1975)

Record low13° (2003)

Fri, 0646° / 31°

0.04

46 °

Hammer, Friday, 6 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.04 in

Chance of precipitation13%

Record high72° (2020)

Record low1° (1991)

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 Hammer, 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 Hammer, 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.