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As of 22:57 MDT

Weather in Kirby, MT

69°Current weather

Kirby, Saturday, 8 August, 22:57

Clear. Feels like 67°. High 94°, low 62°.

Pressure29.91 inHg
Wind2.9 mph S
Humidity30%
Visibility6.2 mi
Dew point36°
Sun, 0991° / 62°0Partly cloudy
91 °Partly cloudy

Kirby, Sunday, 9 August

Partly cloudy. High 91°, low 62°.

Pressure29.80 inHg
Wind13.5 mph NW
Humidity11%
Visibility6.2 mi
Dew point28°
Mon, 1094° / 59°0Clear
94 °Clear

Kirby, Monday, 10 August

Clear. High 94°, low 59°.

Pressure29.80 inHg
Wind7.7 mph N
Humidity18%
Visibility6.2 mi
Dew point38°
Tue, 1193° / 62°0Clear
93 °Clear

Kirby, Tuesday, 11 August

Clear. High 93°, low 62°.

Pressure29.85 inHg
Wind7.4 mph N
Humidity25%
Visibility6.2 mi
Dew point46°
Wed, 1291° / 67°0Overcast
91 °Overcast

Kirby, Wednesday, 12 August

Overcast. High 91°, low 67°.

Pressure29.77 inHg
Wind3.9 mph N
Humidity31%
Visibility6.2 mi
Dew point51°
Thu, 1391° / 59°0.09Light rain
91 °Light rain

Kirby, Thursday, 13 August

Light rain. High 91°, low 59°.

Pressure29.77 inHg
Wind22 mph SE
Humidity32%
Visibility—
Dew point49°
Fri, 1469° / 61°0.26Rain
69 °Rain

Kirby, Friday, 14 August

Rain. High 69°, low 61°.

Pressure29.97 inHg
Wind18.1 mph SE
Humidity91%
Visibility—
Dew point60°
Sat, 1583° / 59°0.04Light rain
83 °Light rain

Kirby, Saturday, 15 August

Light rain. High 83°, low 59°.

Pressure30.09 inHg
Wind12.6 mph E
Humidity47%
Visibility—
Dew point52°
Sun, 1685° / 61°0.1Light rain
85 °Light rain

Kirby, Sunday, 16 August

Light rain. High 85°, low 61°.

Pressure30.03 inHg
Wind11.2 mph NW
Humidity45%
Visibility—
Dew point53°
Mon, 1792° / 68°0Clear
92 °Clear

Kirby, Monday, 17 August

Clear. High 92°, low 68°.

Pressure29.91 inHg
Wind14.2 mph N
Humidity17%
Visibility—
Dew point37°
Tue, 1881° / 62°0Overcast
81 °Overcast

Kirby, Tuesday, 18 August

Overcast. High 81°, low 62°.

Pressure29.94 inHg
Wind16.3 mph NE
Humidity29%
Visibility—
Dew point43°
Wed, 1986° / 57°0.02Light rain
86 °Light rain

Kirby, Wednesday, 19 August

Light rain. High 86°, low 57°.

Pressure29.94 inHg
Wind14.2 mph SE
Humidity35%
Visibility—
Dew point46°
Thu, 2090° / 64°0.01Light rain
90 °Light rain

Kirby, Thursday, 20 August

Light rain. High 90°, low 64°.

Pressure29.83 inHg
Wind15.3 mph E
Humidity28%
Visibility—
Dew point45°
Fri, 2181° / 64°0.04Light rain
81 °Light rain

Kirby, Friday, 21 August

Light rain. High 81°, low 64°.

Pressure29.83 inHg
Wind19.8 mph NW
Humidity43%
Visibility—
Dew point47°
Sat, 2280° / 61°0Clear
80 °Clear

Kirby, Saturday, 22 August

Clear. High 80°, low 61°.

Pressure29.94 inHg
Wind10.3 mph NE
Humidity38%
Visibility—
Dew point44°
Sun, 2394° / 60°0Clear
94 °Clear

Kirby, Sunday, 23 August

Clear. High 94°, low 60°.

Pressure29.74 inHg
Wind13.6 mph SE
Humidity15%
Visibility—
Dew point31°

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 Kirby, 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 Kirby, 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.