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As of 14:20 MDT

Weather in Castner Falls, MT

85°Current weather

Castner Falls, Saturday, 8 August, 14:20

Clear. Feels like 82°. High 85°, low 52°.

Pressure29.85 inHg
Wind6 mph NW
Humidity23%
Visibility6.2 mi
Dew point42°
Sun, 0981° / 53°0Clear
81 °Clear

Castner Falls, Sunday, 9 August

Clear. High 81°, low 53°.

Pressure29.94 inHg
Wind7.7 mph N
Humidity35%
Visibility6.2 mi
Dew point45°
Mon, 1091° / 47°0Clear
91 °Clear

Castner Falls, Monday, 10 August

Clear. High 91°, low 47°.

Pressure29.83 inHg
Wind8.7 mph N
Humidity23%
Visibility6.2 mi
Dew point41°
Tue, 1186° / 55°0Clear
86 °Clear

Castner Falls, Tuesday, 11 August

Clear. High 86°, low 55°.

Pressure29.97 inHg
Wind6.5 mph N
Humidity34%
Visibility6.2 mi
Dew point45°
Wed, 1286° / 59°0Overcast
86 °Overcast

Castner Falls, Wednesday, 12 August

Overcast. High 86°, low 59°.

Pressure29.85 inHg
Wind8.1 mph NW
Humidity27%
Visibility6.2 mi
Dew point43°
Thu, 1390° / 53°0Partly cloudy
90 °Partly cloudy

Castner Falls, Thursday, 13 August

Partly cloudy. High 90°, low 53°.

Pressure29.83 inHg
Wind10.8 mph N
Humidity35%
Visibility—
Dew point45°
Fri, 1485° / 62°0Partly cloudy
85 °Partly cloudy

Castner Falls, Friday, 14 August

Partly cloudy. High 85°, low 62°.

Pressure29.91 inHg
Wind18.4 mph NE
Humidity39%
Visibility—
Dew point48°
Sat, 1583° / 58°0.02Light rain
83 °Light rain

Castner Falls, Saturday, 15 August

Light rain. High 83°, low 58°.

Pressure30.03 inHg
Wind11.2 mph SE
Humidity51%
Visibility—
Dew point49°
Sun, 1693° / 58°0.11Light rain
93 °Light rain

Castner Falls, Sunday, 16 August

Light rain. High 93°, low 58°.

Pressure29.94 inHg
Wind19.4 mph W
Humidity21%
Visibility—
Dew point38°
Mon, 1794° / 61°0Mostly clear
94 °Mostly clear

Castner Falls, Monday, 17 August

Mostly clear. High 94°, low 61°.

Pressure30.00 inHg
Wind13.5 mph W
Humidity20%
Visibility—
Dew point37°
Tue, 1886° / 63°0.06Light rain
86 °Light rain

Castner Falls, Tuesday, 18 August

Light rain. High 86°, low 63°.

Pressure29.91 inHg
Wind9.1 mph NW
Humidity19%
Visibility—
Dew point35°
Wed, 1987° / 56°0Clear
87 °Clear

Castner Falls, Wednesday, 19 August

Clear. High 87°, low 56°.

Pressure30.00 inHg
Wind9.9 mph E
Humidity31%
Visibility—
Dew point42°
Thu, 2094° / 61°0Overcast
94 °Overcast

Castner Falls, Thursday, 20 August

Overcast. High 94°, low 61°.

Pressure29.85 inHg
Wind10.5 mph W
Humidity21%
Visibility—
Dew point38°
Fri, 2191° / 66°0Clear
91 °Clear

Castner Falls, Friday, 21 August

Clear. High 91°, low 66°.

Pressure29.91 inHg
Wind14.9 mph NE
Humidity24%
Visibility—
Dew point41°
Sat, 2293° / 65°0Overcast
93 °Overcast

Castner Falls, Saturday, 22 August

Overcast. High 93°, low 65°.

Pressure29.91 inHg
Wind16.7 mph NE
Humidity23%
Visibility—
Dew point42°
Sun, 2392° / 63°0Mostly clear
92 °Mostly clear

Castner Falls, Sunday, 23 August

Mostly clear. High 92°, low 63°.

Pressure30.03 inHg
Wind13.7 mph NE
Humidity32%
Visibility—
Dew point46°

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 Castner Falls, 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 Castner Falls, 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.