As of 22:06 CDT

Weather in Hammer, SD

46°

Hammer, Thursday, 8 October, 22:06

Mostly clear. Feels like 45°. High 66°, low 43°.

Pressure30.06 inHg

Wind3.9 mph E

Humidity68%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Hammer, SD: average high 59.9°, average low 43.1°. That is 1.7° above the climate normal for October. Precipitation is expected on 2 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 17 October (30.9°).

59.9°/43.1°

Average high / low

+1.7°

Above normal

2 / 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	61.9°	58.1°	+2.1°
18 October – 27 October	56.5°	54.1°	+1.3°
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° / 44°

73 °

Hammer, Friday, 9 October

Partly cloudy. High 73°, low 44°.

Pressure29.91 inHg

Wind11.8 mph SE

Humidity47%

Visibility6.2 mi

Dew point43°

Sat, 1084° / 55°

84 °

Hammer, Saturday, 10 October

Clear. High 84°, low 55°.

Pressure29.50 inHg

Wind21.1 mph S

Humidity35%

Visibility6.2 mi

Dew point51°

Sun, 1169° / 51°

69 °

Hammer, Sunday, 11 October

Overcast. High 69°, low 51°.

Pressure29.74 inHg

Wind8.1 mph N

Humidity68%

Visibility6.2 mi

Dew point56°

Mon, 1253° / 48°

0.14

53 °

Hammer, Monday, 12 October

Light rain. High 53°, low 48°.

Pressure29.88 inHg

Wind9.8 mph N

Humidity84%

Visibility6.2 mi

Dew point46°

Tue, 1351° / 46°

51 °

Hammer, Tuesday, 13 October

Overcast. High 51°, low 46°.

Pressure30.12 inHg

Wind11.9 mph NW

Humidity62%

Visibility—

Dew point38°

Wed, 1462° / 44°

0.01

62 °

Hammer, Wednesday, 14 October

Light rain. High 62°, low 44°.

Pressure30.06 inHg

Wind14.9 mph SE

Humidity55%

Visibility—

Dew point38°

Thu, 1562° / 45°

0.83

62 °

Hammer, Thursday, 15 October

Rain. High 62°, low 45°.

Pressure29.35 inHg

Wind23.9 mph NW

Humidity87%

Visibility—

Dew point57°

Fri, 1645° / 35°

0.01

45 °

Hammer, Friday, 16 October

Light rain. High 45°, low 35°.

Pressure30.39 inHg

Wind20.8 mph NW

Humidity60%

Visibility—

Dew point29°

Sat, 1753° / 31°

53 °

Hammer, Saturday, 17 October

Partly cloudy. High 53°, low 31°.

Pressure30.50 inHg

Wind12.8 mph S

Humidity31%

Visibility—

Dew point18°

Sun, 1854° / 43°

54 °

Hammer, Sunday, 18 October

Overcast. High 54°, low 43°.

Pressure30.33 inHg

Wind15.2 mph S

Humidity41%

Visibility—

Dew point29°

Mon, 1955° / 39°

55 °

Hammer, Monday, 19 October

Overcast. High 55°, low 39°.

Pressure30.47 inHg

Wind13.4 mph SE

Humidity43%

Visibility—

Dew point29°

Tue, 2054° / 45°

54 °

Hammer, Tuesday, 20 October

Overcast. High 54°, low 45°.

Pressure30.00 inHg

Wind17.4 mph S

Humidity63%

Visibility—

Dew point41°

Wed, 2158° / 43°

58 °

Hammer, Wednesday, 21 October

Overcast. High 58°, low 43°.

Pressure30.18 inHg

Wind11.7 mph W

Humidity45%

Visibility—

Dew point33°

Thu, 2254° / 41°

54 °

Hammer, Thursday, 22 October

Overcast. High 54°, low 41°.

Pressure30.36 inHg

Wind10.7 mph N

Humidity42%

Visibility—

Dew point30°

Fri, 2363° / 36°

63 °

Hammer, Friday, 23 October

Clear. High 63°, low 36°.

Pressure30.15 inHg

Wind19.7 mph S

Humidity36%

Visibility—

Dew point29°

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.