As of 18:40 MDT

Weather in Thatcher, SD

51°Current weather

Thatcher, Sunday, 11 October, 18:40

Overcast. Feels like 50°. High 57°, low 50°.

Pressure29.83 inHg
Wind12.9 mph NE
Humidity82%
Visibility6.2 mi
Dew point46°

Monthly outlook for Thatcher, SD: average high 58.6°, average low 42.3°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 18 October (75.4°), the coolest 26 October (29.6°).

58.6°/42.3°
Average high / low
+1°
Above normal
3 / 3
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October61.3°57.8°+1.9°
21 October – 30 October54.1°53.7°+0.2°
31 October – 9 Novemberat normal47.8°—

October records over 66 years

89.6°2 October 1997All-time high
-2.9°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Eagle Butte (15 mi).

Mon, 1255° / 46°0.2Rain
55 °Rain

Thatcher, Monday, 12 October

Rain. High 55°, low 46°.

Pressure29.83 inHg
Wind7.8 mph N
Humidity75%
Visibility6.2 mi
Dew point47°
Tue, 1351° / 43°0.36Rain
51 °Rain

Thatcher, Tuesday, 13 October

Rain. High 51°, low 43°.

Pressure30.12 inHg
Wind6.5 mph N
Humidity72%
Visibility6.2 mi
Dew point37°
Wed, 1456° / 40°0.03Light rain
56 °Light rain

Thatcher, Wednesday, 14 October

Light rain. High 56°, low 40°.

Pressure30.21 inHg
Wind2 mph SE
Humidity57%
Visibility6.2 mi
Dew point39°
Thu, 1554° / 44°0.2Rain
54 °Rain

Thatcher, Thursday, 15 October

Rain. High 54°, low 44°.

Pressure30.33 inHg
Wind21.3 mph N
Humidity44%
Visibility6.2 mi
Dew point33°
Fri, 1654° / 34°0Clear
54 °Clear

Thatcher, Friday, 16 October

Clear. High 54°, low 34°.

Pressure30.71 inHg
Wind18.8 mph S
Humidity52%
Visibility—
Dew point29°
Sat, 1767° / 41°0Clear
67 °Clear

Thatcher, Saturday, 17 October

Clear. High 67°, low 41°.

Pressure30.03 inHg
Wind17.9 mph S
Humidity37%
Visibility—
Dew point31°
Sun, 1875° / 53°0Clear
75 °Clear

Thatcher, Sunday, 18 October

Clear. High 75°, low 53°.

Pressure29.88 inHg
Wind15 mph NW
Humidity21%
Visibility—
Dew point29°
Mon, 1968° / 50°0Clear
68 °Clear

Thatcher, Monday, 19 October

Clear. High 68°, low 50°.

Pressure30.09 inHg
Wind16.1 mph SE
Humidity33%
Visibility—
Dew point33°
Tue, 2075° / 49°0Overcast
75 °Overcast

Thatcher, Tuesday, 20 October

Overcast. High 75°, low 49°.

Pressure29.71 inHg
Wind23.8 mph S
Humidity41%
Visibility—
Dew point40°
Wed, 2167° / 49°0Clear
67 °Clear

Thatcher, Wednesday, 21 October

Clear. High 67°, low 49°.

Pressure29.85 inHg
Wind13.8 mph NW
Humidity25%
Visibility—
Dew point24°
Thu, 2265° / 47°0Overcast
65 °Overcast

Thatcher, Thursday, 22 October

Overcast. High 65°, low 47°.

Pressure29.85 inHg
Wind20.5 mph N
Humidity20%
Visibility—
Dew point19°
Fri, 2351° / 39°0Overcast
51 °Overcast

Thatcher, Friday, 23 October

Overcast. High 51°, low 39°.

Pressure30.30 inHg
Wind24.2 mph NW
Humidity41%
Visibility—
Dew point27°
Sat, 2439° / 32°0Overcast
39 °Overcast

Thatcher, Saturday, 24 October

Overcast. High 39°, low 32°.

Pressure30.50 inHg
Wind16.6 mph NW
Humidity57%
Visibility—
Dew point22°
Sun, 2562° / 31°0Clear
62 °Clear

Thatcher, Sunday, 25 October

Clear. High 62°, low 31°.

Pressure30.03 inHg
Wind21.2 mph NW
Humidity17%
Visibility—
Dew point9°
Mon, 2641° / 30°0Partly cloudy
41 °Partly cloudy

Thatcher, Monday, 26 October

Partly cloudy. High 41°, low 30°.

Pressure30.42 inHg
Wind22.8 mph NW
Humidity42%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2753° / 35°0.02Climate normal
53 °Climate normal

Thatcher, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high53°
Average low35°
Average precipitation0.02 in
Chance of precipitation18%
Record high74° (1983)
Record low8° (2020)
Wed, 2852° / 34°0.06Climate normal
52 °Climate normal

Thatcher, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation18%
Record high74° (1985)
Record low16° (1991)
Thu, 2951° / 34°0.12Climate normal
51 °Climate normal

Thatcher, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°
Average low34°
Average precipitation0.12 in
Chance of precipitation25%
Record high74° (1978)
Record low6° (1991)
Fri, 3049° / 33°0.03Climate normal
49 °Climate normal

Thatcher, Friday, 30 October

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.03 in
Chance of precipitation18%
Record high75° (1968)
Record low-3° (1991)
Sat, 3150° / 33°0.03Climate normal
50 °Climate normal

Thatcher, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.03 in
Chance of precipitation20%
Record high76° (1990)
Record low1° (1991)
Sun, 0149° / 33°0.04Climate normal
49 °Climate normal

Thatcher, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation13%
Record high69° (1978)
Record low8° (1991)
Mon, 0249° / 32°0.02Climate normal
49 °Climate normal

Thatcher, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high76° (2022)
Record low2° (1991)
Tue, 0348° / 33°0.04Climate normal
48 °Climate normal

Thatcher, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (2020)
Record low-3° (1991)
Wed, 0449° / 31°0.01Climate normal
49 °Climate normal

Thatcher, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low31°
Average precipitation0.01 in
Chance of precipitation8%
Record high76° (1978)
Record low2° (1991)
Thu, 0548° / 31°0.04Climate normal
48 °Climate normal

Thatcher, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (2020)
Record low2° (2003)
Fri, 0648° / 29°0.02Climate normal
48 °Climate normal

Thatcher, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.02 in
Chance of precipitation8%
Record high70° (2016)
Record low2° (2003)
Sat, 0747° / 29°0.04Climate normal
47 °Climate normal

Thatcher, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation13%
Record high69° (2006)
Record low3° (2003)
Sun, 0846° / 29°0.05Climate normal
46 °Climate normal

Thatcher, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.05 in
Chance of precipitation12%
Record high74° (1999)
Record low5° (2000)
Mon, 0943° / 28°0.04Climate normal
43 °Climate normal

Thatcher, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°
Average low28°
Average precipitation0.04 in
Chance of precipitation17%
Record high67° (2001)
Record low3° (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 Thatcher, 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 Thatcher, 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.