As of 12:39 MDT

Weather in Merritt, SD

49°Current weather

Merritt, Friday, 16 October, 12:39

Clear. Feels like 47°. High 49°, low 24°.

Pressure30.53 inHg
Wind5 mph S
Humidity35%
Visibility6.2 mi
Dew point24°

Monthly outlook for Merritt, SD: average high 53°, average low 36.2°. That is 1.2° below the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 20 October (68.9°), the coolest 16 October (24.2°).

53°/36.2°
Average high / low
−1.2°
Below normal
3 / 3
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October58.3°56.9°+0.8°
26 October – 4 November44°51°-3.9°
5 November – 14 Novemberat normal46.5°—

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).

Sat, 1767° / 36°0Clear
67 °Clear

Merritt, Saturday, 17 October

Clear. High 67°, low 36°.

Pressure30.00 inHg
Wind4.6 mph W
Humidity18%
Visibility6.2 mi
Dew point16°
Sun, 1860° / 41°0Clear
60 °Clear

Merritt, Sunday, 18 October

Clear. High 60°, low 41°.

Pressure30.09 inHg
Wind7.4 mph NE
Humidity35%
Visibility6.2 mi
Dew point30°
Mon, 1961° / 37°0Clear
61 °Clear

Merritt, Monday, 19 October

Clear. High 61°, low 37°.

Pressure30.00 inHg
Wind6.2 mph SE
Humidity33%
Visibility6.2 mi
Dew point31°
Tue, 2069° / 46°0Mostly clear
69 °Mostly clear

Merritt, Tuesday, 20 October

Mostly clear. High 69°, low 46°.

Pressure29.88 inHg
Wind6.8 mph S
Humidity30%
Visibility6.2 mi
Dew point36°
Wed, 2164° / 46°0Clear
64 °Clear

Merritt, Wednesday, 21 October

Clear. High 64°, low 46°.

Pressure30.09 inHg
Wind9.3 mph NW
Humidity35%
Visibility—
Dew point34°
Thu, 2267° / 45°0Partly cloudy
67 °Partly cloudy

Merritt, Thursday, 22 October

Partly cloudy. High 67°, low 45°.

Pressure30.00 inHg
Wind13.8 mph S
Humidity29%
Visibility—
Dew point31°
Fri, 2362° / 48°0.04Light rain
62 °Light rain

Merritt, Friday, 23 October

Light rain. High 62°, low 48°.

Pressure29.62 inHg
Wind17.8 mph SW
Humidity51%
Visibility—
Dew point41°
Sat, 2447° / 31°0Mostly clear
47 °Mostly clear

Merritt, Saturday, 24 October

Mostly clear. High 47°, low 31°.

Pressure30.15 inHg
Wind16.2 mph W
Humidity52%
Visibility—
Dew point26°
Sun, 2538° / 30°0Overcast
38 °Overcast

Merritt, Sunday, 25 October

Overcast. High 38°, low 30°.

Pressure30.24 inHg
Wind7.1 mph NE
Humidity39%
Visibility—
Dew point14°
Mon, 2645° / 27°0.01Light snow
45 °Light snow

Merritt, Monday, 26 October

Light snow. High 45°, low 27°.

Pressure30.12 inHg
Wind5.1 mph SW
Humidity33%
Visibility—
Dew point14°
Tue, 2757° / 36°0Overcast
57 °Overcast

Merritt, Tuesday, 27 October

Overcast. High 57°, low 36°.

Pressure29.80 inHg
Wind9 mph SW
Humidity33%
Visibility—
Dew point26°
Wed, 2840° / 37°0.05Light rain
40 °Light rain

Merritt, Wednesday, 28 October

Light rain. High 40°, low 37°.

Pressure29.74 inHg
Wind5.1 mph SW
Humidity97%
Visibility—
Dew point39°
Thu, 2944° / 35°0.24Light rain
44 °Light rain

Merritt, Thursday, 29 October

Light rain. High 44°, low 35°.

Pressure29.94 inHg
Wind7.7 mph NW
Humidity93%
Visibility—
Dew point38°
Fri, 3043° / 33°0Overcast
43 °Overcast

Merritt, Friday, 30 October

Overcast. High 43°, low 33°.

Pressure30.21 inHg
Wind7.7 mph NE
Humidity60%
Visibility—
Dew point29°
Sat, 3134° / 27°0.02Snow
34 °Snow

Merritt, Saturday, 31 October

Snow. High 34°, low 27°.

Pressure30.24 inHg
Wind3.9 mph NE
Humidity95%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0149° / 32°0.06Climate normal
49 °Climate normal

Merritt, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.06 in
Chance of precipitation17%
Record high72° (2022)
Record low-2° (2002)
Mon, 0249° / 31°0.04Climate normal
49 °Climate normal

Merritt, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2008)
Record low-3° (1991)
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)

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.