As of 00:37 CDT

Weather in Bonesteel, SD

70°Current weather

Bonesteel, Sunday, 9 August, 00:37

Clear. Feels like 71°. High 96°, low 64°.

Pressure29.77 inHg
Wind5 mph SW
Humidity86%
Visibility6.2 mi
Dew point66°

Monthly outlook for Bonesteel, SD: average high 87°, average low 62.4°. That is 1.5° above the climate normal for August. Precipitation is expected on 7 days (about 1.9 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 10 August (103°), the coolest 21 August (56.5°).

87°/62.4°
Average high / low
+1.5°
Above normal
7 / 4
Wet days / normal
1.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August89.4°84.2°+2.9°
19 August – 28 August83.1°84.5°-0.8°
29 August – 7 Septemberat normal82.2°

August records over 66 years

106.9°29 August 2012All-time high
47.8°23 August 1966All-time low

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

Mon, 10103° / 65°0.02Light rain
103 °Light rain

Bonesteel, Monday, 10 August

Light rain. High 103°, low 65°.

Pressure29.77 inHg
Wind12.1 mph E
Humidity29%
Visibility6.2 mi
Dew point57°
Tue, 1197° / 65°0Overcast
97 °Overcast

Bonesteel, Tuesday, 11 August

Overcast. High 97°, low 65°.

Pressure29.80 inHg
Wind13.2 mph NE
Humidity40%
Visibility6.2 mi
Dew point60°
Wed, 1293° / 66°0.14Rain
93 °Rain

Bonesteel, Wednesday, 12 August

Rain. High 93°, low 66°.

Pressure29.88 inHg
Wind8.4 mph E
Humidity39%
Visibility6.2 mi
Dew point59°
Thu, 1375° / 62°0.65Rain
75 °Rain

Bonesteel, Thursday, 13 August

Rain. High 75°, low 62°.

Pressure30.00 inHg
Wind16 mph E
Humidity94%
Visibility
Dew point61°
Fri, 1476° / 57°0Overcast
76 °Overcast

Bonesteel, Friday, 14 August

Overcast. High 76°, low 57°.

Pressure30.09 inHg
Wind16.2 mph SE
Humidity45%
Visibility
Dew point51°
Sat, 1578° / 63°0.01Light rain
78 °Light rain

Bonesteel, Saturday, 15 August

Light rain. High 78°, low 63°.

Pressure30.12 inHg
Wind9.4 mph SE
Humidity72%
Visibility
Dew point62°
Sun, 1682° / 64°0.11Light rain
82 °Light rain

Bonesteel, Sunday, 16 August

Light rain. High 82°, low 64°.

Pressure30.03 inHg
Wind11.4 mph S
Humidity58%
Visibility
Dew point64°
Mon, 1795° / 66°0.06Light rain
95 °Light rain

Bonesteel, Monday, 17 August

Light rain. High 95°, low 66°.

Pressure29.94 inHg
Wind10.2 mph W
Humidity45%
Visibility
Dew point61°
Tue, 1898° / 66°0.01Light rain
98 °Light rain

Bonesteel, Tuesday, 18 August

Light rain. High 98°, low 66°.

Pressure29.94 inHg
Wind11.1 mph W
Humidity32%
Visibility
Dew point55°
Wed, 1981° / 59°0.27Rain
81 °Rain

Bonesteel, Wednesday, 19 August

Rain. High 81°, low 59°.

Pressure30.12 inHg
Wind15.7 mph NE
Humidity42%
Visibility
Dew point49°
Thu, 2064° / 58°0.35Rain
64 °Rain

Bonesteel, Thursday, 20 August

Rain. High 64°, low 58°.

Pressure30.09 inHg
Wind13.6 mph SE
Humidity96%
Visibility
Dew point57°
Fri, 2179° / 56°0.22Rain
79 °Rain

Bonesteel, Friday, 21 August

Rain. High 79°, low 56°.

Pressure29.85 inHg
Wind20.3 mph S
Humidity44%
Visibility
Dew point52°
Sat, 2290° / 61°0Clear
90 °Clear

Bonesteel, Saturday, 22 August

Clear. High 90°, low 61°.

Pressure29.83 inHg
Wind12.6 mph N
Humidity32%
Visibility
Dew point50°
Sun, 2386° / 62°0.03Light rain
86 °Light rain

Bonesteel, Sunday, 23 August

Light rain. High 86°, low 62°.

Pressure29.94 inHg
Wind8.1 mph SE
Humidity27%
Visibility
Dew point41°
Mon, 2498° / 63°0Clear
98 °Clear

Bonesteel, Monday, 24 August

Clear. High 98°, low 63°.

Pressure29.71 inHg
Wind16.5 mph SW
Humidity28%
Visibility
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2585° / 65°0.11Climate normal
85 °Climate normal

Bonesteel, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high85°
Average low65°
Average precipitation0.11 in
Chance of precipitation20%
Record high100° (1991)
Record low50° (1964)
Wed, 2685° / 65°0.07Climate normal
85 °Climate normal

Bonesteel, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high85°
Average low65°
Average precipitation0.07 in
Chance of precipitation30%
Record high101° (1970)
Record low51° (1992)
Thu, 2784° / 65°0.07Climate normal
84 °Climate normal

Bonesteel, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high84°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high98° (1962)
Record low49° (1992)
Fri, 2884° / 65°0.06Climate normal
84 °Climate normal

Bonesteel, Friday, 28 August

Climate normal for this date — 60-year average.

Average high84°
Average low65°
Average precipitation0.06 in
Chance of precipitation22%
Record high103° (2012)
Record low49° (1987)
Sat, 2984° / 64°0.06Climate normal
84 °Climate normal

Bonesteel, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high84°
Average low64°
Average precipitation0.06 in
Chance of precipitation22%
Record high107° (2012)
Record low51° (2018)
Sun, 3084° / 64°0.07Climate normal
84 °Climate normal

Bonesteel, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high84°
Average low64°
Average precipitation0.07 in
Chance of precipitation28%
Record high101° (2012)
Record low51° (1992)
Mon, 3183° / 64°0.09Climate normal
83 °Climate normal

Bonesteel, Monday, 31 August

Climate normal for this date — 60-year average.

Average high83°
Average low64°
Average precipitation0.09 in
Chance of precipitation25%
Record high97° (1975)
Record low49° (1965)
Tue, 0182° / 63°0.09Climate normal
82 °Climate normal

Bonesteel, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high82°
Average low63°
Average precipitation0.09 in
Chance of precipitation23%
Record high97° (1964)
Record low46° (1965)
Wed, 0283° / 63°0.06Climate normal
83 °Climate normal

Bonesteel, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high83°
Average low63°
Average precipitation0.06 in
Chance of precipitation23%
Record high103° (2023)
Record low46° (1972)
Thu, 0382° / 63°0.06Climate normal
82 °Climate normal

Bonesteel, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high82°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high100° (2023)
Record low42° (1974)
Fri, 0482° / 62°0.11Climate normal
82 °Climate normal

Bonesteel, Friday, 4 September

Climate normal for this date — 60-year average.

Average high82°
Average low62°
Average precipitation0.11 in
Chance of precipitation27%
Record high100° (2023)
Record low45° (1962)
Sat, 0582° / 63°0.06Climate normal
82 °Climate normal

Bonesteel, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high82°
Average low63°
Average precipitation0.06 in
Chance of precipitation18%
Record high99° (1978)
Record low45° (1962)
Sun, 0682° / 62°0.04Climate normal
82 °Climate normal

Bonesteel, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high82°
Average low62°
Average precipitation0.04 in
Chance of precipitation13%
Record high99° (1970)
Record low42° (2025)
Mon, 0780° / 60°0.07Climate normal
80 °Climate normal

Bonesteel, Monday, 7 September

Climate normal for this date — 60-year average.

Average high80°
Average low60°
Average precipitation0.07 in
Chance of precipitation25%
Record high96° (1978)
Record low43° (2025)

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 Bonesteel, 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 Bonesteel, 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.