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As of 13:18 MDT

Weather in Calais, MT

85°Current weather

Calais, Saturday, 8 August, 13:18

Mostly clear. Feels like 83°. High 88°, low 54°.

Pressure29.83 inHg
Wind7.9 mph NE
Humidity31%
Visibility6.2 mi
Dew point50°
Sun, 0991° / 55°0Clear
91 °Clear

Calais, Sunday, 9 August

Clear. High 91°, low 55°.

Pressure29.85 inHg
Wind13.9 mph E
Humidity29%
Visibility6.2 mi
Dew point47°
Mon, 1085° / 49°0Mostly clear
85 °Mostly clear

Calais, Monday, 10 August

Mostly clear. High 85°, low 49°.

Pressure29.91 inHg
Wind12.4 mph NE
Humidity33%
Visibility6.2 mi
Dew point46°
Tue, 1188° / 59°0Overcast
88 °Overcast

Calais, Tuesday, 11 August

Overcast. High 88°, low 59°.

Pressure29.91 inHg
Wind6.8 mph E
Humidity31%
Visibility6.2 mi
Dew point47°
Wed, 1284° / 59°0Partly cloudy
84 °Partly cloudy

Calais, Wednesday, 12 August

Partly cloudy. High 84°, low 59°.

Pressure29.94 inHg
Wind11.6 mph NE
Humidity32%
Visibility6.2 mi
Dew point47°
Thu, 1383° / 57°0Partly cloudy
83 °Partly cloudy

Calais, Thursday, 13 August

Partly cloudy. High 83°, low 57°.

Pressure30.06 inHg
Wind16.7 mph E
Humidity32%
Visibility—
Dew point42°
Fri, 1478° / 66°0.31Light rain
78 °Light rain

Calais, Friday, 14 August

Light rain. High 78°, low 66°.

Pressure29.91 inHg
Wind17 mph SE
Humidity59%
Visibility—
Dew point55°
Sat, 1579° / 62°0.01Light rain
79 °Light rain

Calais, Saturday, 15 August

Light rain. High 79°, low 62°.

Pressure30.06 inHg
Wind11.9 mph N
Humidity36%
Visibility—
Dew point46°
Sun, 1687° / 61°0.2Light rain
87 °Light rain

Calais, Sunday, 16 August

Light rain. High 87°, low 61°.

Pressure30.00 inHg
Wind10.1 mph E
Humidity43%
Visibility—
Dew point52°
Mon, 1794° / 70°0.01Light rain
94 °Light rain

Calais, Monday, 17 August

Light rain. High 94°, low 70°.

Pressure29.91 inHg
Wind14.4 mph W
Humidity24%
Visibility—
Dew point46°
Tue, 1890° / 68°0Overcast
90 °Overcast

Calais, Tuesday, 18 August

Overcast. High 90°, low 68°.

Pressure29.97 inHg
Wind17.5 mph NE
Humidity28%
Visibility—
Dew point46°
Wed, 1977° / 66°0.13Light rain
77 °Light rain

Calais, Wednesday, 19 August

Light rain. High 77°, low 66°.

Pressure30.09 inHg
Wind9.2 mph NE
Humidity74%
Visibility—
Dew point59°
Thu, 2088° / 65°0Overcast
88 °Overcast

Calais, Thursday, 20 August

Overcast. High 88°, low 65°.

Pressure29.94 inHg
Wind10.4 mph E
Humidity41%
Visibility—
Dew point54°
Fri, 2194° / 69°0Overcast
94 °Overcast

Calais, Friday, 21 August

Overcast. High 94°, low 69°.

Pressure29.77 inHg
Wind17.9 mph N
Humidity21%
Visibility—
Dew point44°
Sat, 2276° / 54°0Overcast
76 °Overcast

Calais, Saturday, 22 August

Overcast. High 76°, low 54°.

Pressure30.15 inHg
Wind14.8 mph E
Humidity40%
Visibility—
Dew point42°
Sun, 2385° / 60°0Clear
85 °Clear

Calais, Sunday, 23 August

Clear. High 85°, low 60°.

Pressure30.06 inHg
Wind12.5 mph NE
Humidity30%
Visibility—
Dew point43°

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 Calais, 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 Calais, 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.