As of 22:37 MDT

Weather in Merritt, SD

57°

Merritt, Thursday, 22 October, 22:37

Overcast. Feels like 55°. High 70°, low 47°.

Pressure29.83 inHg

Wind7.9 mph SW

Humidity60%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Merritt, SD: average high 49.6°, average low 32°. That is 1.3° below the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (71.8°), the coolest 3 November (21.7°).

49.6°/32°

Average high / low

−1.3°

Below normal

4 / 3

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
22 October – 31 October	48°	53.3°	-2.9°
1 November – 10 November	52.3°	48.3°	+2.2°
11 November – 20 November	at normal	44.7°	—

October records over 66 years

89.2°3 October 2025All-time high

-6.2°26 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Blackhawk (12 mi).

Fri, 2372° / 46°

72 °

Merritt, Friday, 23 October

Mostly clear. High 72°, low 46°.

Pressure29.68 inHg

Wind14.3 mph SW

Humidity31%

Visibility6.2 mi

Dew point37°

Sat, 2447° / 30°

47 °

Merritt, Saturday, 24 October

Clear. High 47°, low 30°.

Pressure30.33 inHg

Wind7.1 mph NW

Humidity47%

Visibility6.2 mi

Dew point6°

Sun, 2542° / 32°

0.08

42 °

Merritt, Sunday, 25 October

Snow. High 42°, low 32°.

Pressure30.39 inHg

Wind7.7 mph SE

Humidity66%

Visibility6.2 mi

Dew point20°

Mon, 2633° / 30°

0.48

33 °

Merritt, Monday, 26 October

Snow. High 33°, low 30°.

Pressure30.36 inHg

Wind2.7 mph SE

Humidity98%

Visibility1.2 mi

Dew point32°

Tue, 2753° / 27°

0.03

53 °

Merritt, Tuesday, 27 October

Snow. High 53°, low 27°.

Pressure29.91 inHg

Wind9.1 mph SW

Humidity61%

Visibility—

Dew point35°

Wed, 2841° / 28°

0.16

41 °

Merritt, Wednesday, 28 October

Snow. High 41°, low 28°.

Pressure30.03 inHg

Wind21.9 mph NW

Humidity86%

Visibility—

Dew point31°

Thu, 2945° / 25°

45 °

Merritt, Thursday, 29 October

Overcast. High 45°, low 25°.

Pressure30.12 inHg

Wind8.5 mph SE

Humidity50%

Visibility—

Dew point22°

Fri, 3038° / 29°

0.05

38 °

Merritt, Friday, 30 October

Light rain. High 38°, low 29°.

Pressure29.91 inHg

Wind6.8 mph S

Humidity94%

Visibility—

Dew point34°

Sat, 3140° / 27°

40 °

Merritt, Saturday, 31 October

Overcast. High 40°, low 27°.

Pressure29.80 inHg

Wind15.2 mph NW

Humidity59%

Visibility—

Dew point25°

Sun, 0142° / 27°

0.02

42 °

Merritt, Sunday, 1 November

Light snow. High 42°, low 27°.

Pressure29.94 inHg

Wind12.8 mph W

Humidity33%

Visibility—

Dew point13°

Mon, 0240° / 25°

40 °

Merritt, Monday, 2 November

Partly cloudy. High 40°, low 25°.

Pressure30.27 inHg

Wind13.6 mph NW

Humidity38%

Visibility—

Dew point15°

Tue, 0346° / 22°

46 °

Merritt, Tuesday, 3 November

Clear. High 46°, low 22°.

Pressure30.42 inHg

Wind7.9 mph W

Humidity29%

Visibility—

Dew point11°

Wed, 0453° / 29°

53 °

Merritt, Wednesday, 4 November

Overcast. High 53°, low 29°.

Pressure30.24 inHg

Wind11.5 mph W

Humidity22%

Visibility—

Dew point11°

Thu, 0564° / 42°

64 °

Merritt, Thursday, 5 November

Clear. High 64°, low 42°.

Pressure30.09 inHg

Wind10.1 mph W

Humidity37%

Visibility—

Dew point34°

Fri, 0669° / 47°

69 °

Merritt, Friday, 6 November

Mostly clear. High 69°, low 47°.

Pressure29.88 inHg

Wind8 mph W

Humidity22%

Visibility—

Dew point26°

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

Sat, 0749° / 30°

0.04

49 °

Merritt, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°

Average low30°

Average precipitation0.04 in

Chance of precipitation13%

Record high76° (2020)

Record low5° (1991)

Sun, 0847° / 29°

0.07

47 °

Merritt, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°

Average low29°

Average precipitation0.07 in

Chance of precipitation18%

Record high76° (1999)

Record low3° (2003)

Mon, 0944° / 28°

0.07

44 °

Merritt, Monday, 9 November

Climate normal for this date — 60-year average.

Average high44°

Average low28°

Average precipitation0.07 in

Chance of precipitation23%

Record high69° (2001)

Record low0° (1966)

Tue, 1045° / 26°

0.04

45 °

Merritt, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.04 in

Chance of precipitation18%

Record high67° (2005)

Record low-5° (1986)

Wed, 1143° / 26°

0.02

43 °

Merritt, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high43°

Average low26°

Average precipitation0.02 in

Chance of precipitation17%

Record high68° (2005)

Record low-4° (1986)

Thu, 1246° / 27°

0.02

46 °

Merritt, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°

Average low27°

Average precipitation0.02 in

Chance of precipitation18%

Record high72° (1999)

Record low-11° (1986)

Fri, 1346° / 28°

0.04

46 °

Merritt, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°

Average low28°

Average precipitation0.04 in

Chance of precipitation20%

Record high71° (1999)

Record low-14° (1986)

Sat, 1446° / 29°

0.02

46 °

Merritt, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.02 in

Chance of precipitation20%

Record high74° (2025)

Record low-4° (2014)

Sun, 1546° / 28°

0.02

46 °

Merritt, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high46°

Average low28°

Average precipitation0.02 in

Chance of precipitation12%

Record high69° (2021)

Record low2° (2014)

Mon, 1647° / 28°

0.02

47 °

Merritt, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°

Average low28°

Average precipitation0.02 in

Chance of precipitation7%

Record high67° (2017)

Record low1° (2000)

Tue, 1744° / 28°

0.02

44 °

Merritt, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high44°

Average low28°

Average precipitation0.02 in

Chance of precipitation17%

Record high65° (1999)

Record low0° (2000)

Wed, 1844° / 27°

0.04

44 °

Merritt, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high44°

Average low27°

Average precipitation0.04 in

Chance of precipitation17%

Record high69° (2008)

Record low7° (2014)

Thu, 1942° / 27°

0.04

42 °

Merritt, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high42°

Average low27°

Average precipitation0.04 in

Chance of precipitation20%

Record high66° (1989)

Record low1° (1985)

Fri, 2043° / 25°

0.02

43 °

Merritt, Friday, 20 November

Climate normal for this date — 60-year average.

Average high43°

Average low25°

Average precipitation0.02 in

Chance of precipitation15%

Record high64° (1990)

Record low-10° (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 Merritt, 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 Merritt, 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.