As of 16:44 MDT

Weather in Merritt, SD

58°Current weather

Merritt, Sunday, 18 October, 16:44

Clear. Feels like 55°. High 59°, low 37°.

Pressure30.15 inHg
Wind6 mph E
Humidity32%
Visibility6.2 mi
Dew point29°

Monthly outlook for Merritt, SD: average high 56.9°, average low 35.1°. That is 1.6° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 22 October (71.2°), the coolest 2 November (10.5°).

56.9°/35.1°
Average high / low
+1.6°
Above normal
2 / 3
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October60.6°56.2°+2.4°
28 October – 6 November50.7°50.1°+0.4°
7 November – 16 Novemberat normal45.9°—

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).

Mon, 1957° / 34°0Clear
57 °Clear

Merritt, Monday, 19 October

Clear. High 57°, low 34°.

Pressure30.15 inHg
Wind10.5 mph SE
Humidity39%
Visibility6.2 mi
Dew point25°
Tue, 2071° / 37°0Clear
71 °Clear

Merritt, Tuesday, 20 October

Clear. High 71°, low 37°.

Pressure29.94 inHg
Wind2.9 mph S
Humidity27%
Visibility6.2 mi
Dew point35°
Wed, 2162° / 42°0Clear
62 °Clear

Merritt, Wednesday, 21 October

Clear. High 62°, low 42°.

Pressure30.15 inHg
Wind6.6 mph SE
Humidity48%
Visibility6.2 mi
Dew point41°
Thu, 2271° / 50°0Overcast
71 °Overcast

Merritt, Thursday, 22 October

Overcast. High 71°, low 50°.

Pressure29.83 inHg
Wind10.3 mph S
Humidity33%
Visibility6.2 mi
Dew point41°
Fri, 2364° / 46°0.02Light rain
64 °Light rain

Merritt, Friday, 23 October

Light rain. High 64°, low 46°.

Pressure29.53 inHg
Wind16.4 mph W
Humidity34%
Visibility—
Dew point34°
Sat, 2446° / 32°0Mostly clear
46 °Mostly clear

Merritt, Saturday, 24 October

Mostly clear. High 46°, low 32°.

Pressure30.18 inHg
Wind14.6 mph NW
Humidity35%
Visibility—
Dew point18°
Sun, 2560° / 32°0Clear
60 °Clear

Merritt, Sunday, 25 October

Clear. High 60°, low 32°.

Pressure30.03 inHg
Wind18.5 mph SW
Humidity37%
Visibility—
Dew point29°
Mon, 2654° / 41°0Clear
54 °Clear

Merritt, Monday, 26 October

Clear. High 54°, low 41°.

Pressure30.03 inHg
Wind8.6 mph E
Humidity58%
Visibility—
Dew point37°
Tue, 2762° / 39°0Partly cloudy
62 °Partly cloudy

Merritt, Tuesday, 27 October

Partly cloudy. High 62°, low 39°.

Pressure30.00 inHg
Wind7 mph SE
Humidity40%
Visibility—
Dew point32°
Wed, 2866° / 46°0Overcast
66 °Overcast

Merritt, Wednesday, 28 October

Overcast. High 66°, low 46°.

Pressure29.71 inHg
Wind14.7 mph SW
Humidity29%
Visibility—
Dew point31°
Thu, 2953° / 36°0Overcast
53 °Overcast

Merritt, Thursday, 29 October

Overcast. High 53°, low 36°.

Pressure29.80 inHg
Wind11.2 mph W
Humidity17%
Visibility—
Dew point8°
Fri, 3059° / 29°0Clear
59 °Clear

Merritt, Friday, 30 October

Clear. High 59°, low 29°.

Pressure29.88 inHg
Wind9.7 mph NW
Humidity18%
Visibility—
Dew point11°
Sat, 3153° / 39°0.19Rain
53 °Rain

Merritt, Saturday, 31 October

Rain. High 53°, low 39°.

Pressure29.88 inHg
Wind7.8 mph NE
Humidity37%
Visibility—
Dew point26°
Sun, 0135° / 11°1.04Snow
35 °Snow

Merritt, Sunday, 1 November

Snow. High 35°, low 11°.

Pressure30.39 inHg
Wind14.9 mph N
Humidity91%
Visibility—
Dew point25°
Mon, 0238° / 11°0Mostly clear
38 °Mostly clear

Merritt, Monday, 2 November

Mostly clear. High 38°, low 11°.

Pressure30.27 inHg
Wind7.3 mph W
Humidity70%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0349° / 32°0.04Climate normal
49 °Climate normal

Merritt, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high74° (2020)
Record low2° (1991)
Wed, 0451° / 31°0.01Climate normal
51 °Climate normal

Merritt, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°
Average low31°
Average precipitation0.01 in
Chance of precipitation8%
Record high73° (1978)
Record low8° (1995)
Thu, 0550° / 31°0.03Climate normal
50 °Climate normal

Merritt, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high77° (2020)
Record low2° (2003)
Fri, 0649° / 30°0.05Climate normal
49 °Climate normal

Merritt, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.05 in
Chance of precipitation13%
Record high74° (2020)
Record low1° (2003)
Sat, 0749° / 30°0.04Climate normal
49 °Climate normal

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°0.07Climate normal
47 °Climate normal

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°0.07Climate normal
44 °Climate normal

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°0.04Climate normal
45 °Climate normal

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°0.02Climate normal
43 °Climate normal

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°0.02Climate normal
46 °Climate normal

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°0.04Climate normal
46 °Climate normal

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°0.02Climate normal
46 °Climate normal

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°0.02Climate normal
46 °Climate normal

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°0.02Climate normal
47 °Climate normal

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)

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.