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As of 00:26 MDT

Weather in Spion Kop, MT

63°Current weather

Spion Kop, Sunday, 9 August, 00:26

Overcast. Feels like 61°. High 79°, low 48°.

Pressure29.91 inHg
Wind6.6 mph SE
Humidity46%
Visibility6.2 mi
Dew point41°
Mon, 1082° / 46°0Clear
82 °Clear

Spion Kop, Monday, 10 August

Clear. High 82°, low 46°.

Pressure29.83 inHg
Wind9.6 mph NW
Humidity20%
Visibility6.2 mi
Dew point37°
Tue, 1183° / 59°0Clear
83 °Clear

Spion Kop, Tuesday, 11 August

Clear. High 83°, low 59°.

Pressure29.94 inHg
Wind11.9 mph NW
Humidity26%
Visibility6.2 mi
Dew point39°
Wed, 1286° / 59°0.02Light rain
86 °Light rain

Spion Kop, Wednesday, 12 August

Light rain. High 86°, low 59°.

Pressure29.85 inHg
Wind6.2 mph NW
Humidity24%
Visibility6.2 mi
Dew point38°
Thu, 1378° / 54°0.16Light rain
78 °Light rain

Spion Kop, Thursday, 13 August

Light rain. High 78°, low 54°.

Pressure29.85 inHg
Wind7.7 mph SE
Humidity55%
Visibility—
Dew point50°
Fri, 1471° / 56°0.04Light rain
71 °Light rain

Spion Kop, Friday, 14 August

Light rain. High 71°, low 56°.

Pressure30.09 inHg
Wind10.1 mph NW
Humidity67%
Visibility—
Dew point49°
Sat, 1579° / 51°0.02Light rain
79 °Light rain

Spion Kop, Saturday, 15 August

Light rain. High 79°, low 51°.

Pressure30.12 inHg
Wind12.5 mph SE
Humidity48%
Visibility—
Dew point47°
Sun, 1689° / 59°0Clear
89 °Clear

Spion Kop, Sunday, 16 August

Clear. High 89°, low 59°.

Pressure29.94 inHg
Wind17.2 mph NW
Humidity17%
Visibility—
Dew point33°
Mon, 1792° / 65°0Partly cloudy
92 °Partly cloudy

Spion Kop, Monday, 17 August

Partly cloudy. High 92°, low 65°.

Pressure29.91 inHg
Wind15 mph NW
Humidity14%
Visibility—
Dew point29°
Tue, 1874° / 58°0.06Light rain
74 °Light rain

Spion Kop, Tuesday, 18 August

Light rain. High 74°, low 58°.

Pressure30.15 inHg
Wind15.7 mph W
Humidity85%
Visibility—
Dew point55°
Wed, 1984° / 59°0Overcast
84 °Overcast

Spion Kop, Wednesday, 19 August

Overcast. High 84°, low 59°.

Pressure29.91 inHg
Wind23.5 mph NW
Humidity27%
Visibility—
Dew point40°
Thu, 2084° / 60°0.01Light rain
84 °Light rain

Spion Kop, Thursday, 20 August

Light rain. High 84°, low 60°.

Pressure29.83 inHg
Wind16.4 mph SW
Humidity22%
Visibility—
Dew point37°
Fri, 2181° / 59°0.04Light rain
81 °Light rain

Spion Kop, Friday, 21 August

Light rain. High 81°, low 59°.

Pressure29.83 inHg
Wind19.9 mph NW
Humidity23%
Visibility—
Dew point33°
Sat, 2282° / 49°0Clear
82 °Clear

Spion Kop, Saturday, 22 August

Clear. High 82°, low 49°.

Pressure29.91 inHg
Wind9 mph E
Humidity35%
Visibility—
Dew point41°
Sun, 2387° / 62°0Partly cloudy
87 °Partly cloudy

Spion Kop, Sunday, 23 August

Partly cloudy. High 87°, low 62°.

Pressure29.74 inHg
Wind22.5 mph W
Humidity12%
Visibility—
Dew point25°
Mon, 2484° / 60°0Partly cloudy
84 °Partly cloudy

Spion Kop, Monday, 24 August

Partly cloudy. High 84°, low 60°.

Pressure29.85 inHg
Wind14.3 mph W
Humidity14%
Visibility—
Dew point27°

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 Spion Kop, MT 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 Spion Kop, MT 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.