As of 07:41 MDT

Weather in Calypso, MT

39°Current weather

Calypso, Monday, 19 October, 07:41

Mostly clear. Feels like 35°. High 67°, low 39°.

Pressure30.15 inHg
Wind5.8 mph E
Humidity66%
Visibility6.2 mi
Dew point29°

Monthly outlook for Calypso, MT: average high 57.2°, average low 37.7°. That is 1.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 23 October (80.2°), the coolest 28 October (27.8°).

57.2°/37.7°
Average high / low
+1.5°
Above normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October59.2°56.9°+1.3°
29 October – 7 November53.9°50.1°+2.1°
8 November – 17 Novemberat normal44.5°—

October records over 66 years

92.7°1 October 2011All-time high
-14.6°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Zero (8 mi).

Tue, 2067° / 39°0Partly cloudy
67 °Partly cloudy

Calypso, Tuesday, 20 October

Partly cloudy. High 67°, low 39°.

Pressure30.03 inHg
Wind1.1 mph NE
Humidity50%
Visibility6.2 mi
Dew point42°
Wed, 2168° / 40°0Overcast
68 °Overcast

Calypso, Wednesday, 21 October

Overcast. High 68°, low 40°.

Pressure30.18 inHg
Wind7.5 mph SE
Humidity64%
Visibility6.2 mi
Dew point45°
Thu, 2271° / 48°0Clear
71 °Clear

Calypso, Thursday, 22 October

Clear. High 71°, low 48°.

Pressure29.91 inHg
Wind3 mph SW
Humidity61%
Visibility6.2 mi
Dew point49°
Fri, 2380° / 54°0.01Light rain
80 °Light rain

Calypso, Friday, 23 October

Light rain. High 80°, low 54°.

Pressure29.47 inHg
Wind18.6 mph W
Humidity49%
Visibility—
Dew point50°
Sat, 2453° / 40°0.09Light rain
53 °Light rain

Calypso, Saturday, 24 October

Light rain. High 53°, low 40°.

Pressure30.24 inHg
Wind25.3 mph W
Humidity49%
Visibility—
Dew point30°
Sun, 2552° / 37°0Mostly clear
52 °Mostly clear

Calypso, Sunday, 25 October

Mostly clear. High 52°, low 37°.

Pressure30.36 inHg
Wind10.6 mph E
Humidity31%
Visibility—
Dew point16°
Mon, 2645° / 37°0Partly cloudy
45 °Partly cloudy

Calypso, Monday, 26 October

Partly cloudy. High 45°, low 37°.

Pressure30.27 inHg
Wind15.5 mph NE
Humidity36%
Visibility—
Dew point17°
Tue, 2740° / 30°0Partly cloudy
40 °Partly cloudy

Calypso, Tuesday, 27 October

Partly cloudy. High 40°, low 30°.

Pressure30.59 inHg
Wind6.3 mph NW
Humidity50%
Visibility—
Dew point18°
Wed, 2849° / 28°0Clear
49 °Clear

Calypso, Wednesday, 28 October

Clear. High 49°, low 28°.

Pressure30.36 inHg
Wind4.5 mph S
Humidity33%
Visibility—
Dew point14°
Thu, 2952° / 33°0Overcast
52 °Overcast

Calypso, Thursday, 29 October

Overcast. High 52°, low 33°.

Pressure30.00 inHg
Wind9 mph N
Humidity38%
Visibility—
Dew point20°
Fri, 3048° / 31°0Mostly clear
48 °Mostly clear

Calypso, Friday, 30 October

Mostly clear. High 48°, low 31°.

Pressure30.00 inHg
Wind8.9 mph E
Humidity39%
Visibility—
Dew point18°
Sat, 3150° / 36°0Partly cloudy
50 °Partly cloudy

Calypso, Saturday, 31 October

Partly cloudy. High 50°, low 36°.

Pressure29.91 inHg
Wind10.4 mph NW
Humidity33%
Visibility—
Dew point18°
Sun, 0156° / 33°0Clear
56 °Clear

Calypso, Sunday, 1 November

Clear. High 56°, low 33°.

Pressure30.15 inHg
Wind6.7 mph SE
Humidity34%
Visibility—
Dew point20°
Mon, 0262° / 39°0Overcast
62 °Overcast

Calypso, Monday, 2 November

Overcast. High 62°, low 39°.

Pressure29.80 inHg
Wind9 mph NE
Humidity37%
Visibility—
Dew point28°
Tue, 0355° / 41°0Overcast
55 °Overcast

Calypso, Tuesday, 3 November

Overcast. High 55°, low 41°.

Pressure30.12 inHg
Wind12.1 mph NW
Humidity36%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 32°0.02Climate normal
51 °Climate normal

Calypso, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1965)
Record low12° (1991)
Thu, 0550° / 31°0.02Climate normal
50 °Climate normal

Calypso, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation22%
Record high69° (2020)
Record low0° (2003)
Fri, 0649° / 30°0.02Climate normal
49 °Climate normal

Calypso, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (2009)
Record low7° (1991)
Sat, 0748° / 30°0.02Climate normal
48 °Climate normal

Calypso, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (1999)
Record low-2° (1991)
Sun, 0846° / 29°0.02Climate normal
46 °Climate normal

Calypso, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation20%
Record high72° (1999)
Record low-5° (2000)
Mon, 0945° / 28°0.06Climate normal
45 °Climate normal

Calypso, Monday, 9 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2016)
Record low-3° (2000)
Tue, 1044° / 26°0.05Climate normal
44 °Climate normal

Calypso, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (1989)
Record low-8° (1986)
Wed, 1143° / 25°0.01Climate normal
43 °Climate normal

Calypso, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high43°
Average low25°
Average precipitation0.01 in
Chance of precipitation8%
Record high65° (2016)
Record low-6° (2022)
Thu, 1245° / 26°0.02Climate normal
45 °Climate normal

Calypso, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (1999)
Record low-5° (2000)
Fri, 1345° / 28°0.02Climate normal
45 °Climate normal

Calypso, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation18%
Record high65° (2025)
Record low-11° (1986)
Sat, 1445° / 28°0.02Climate normal
45 °Climate normal

Calypso, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (1999)
Record low-13° (2014)
Sun, 1545° / 26°0.01Climate normal
45 °Climate normal

Calypso, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°
Average low26°
Average precipitation0.01 in
Chance of precipitation5%
Record high65° (2001)
Record low-7° (2014)
Mon, 1645° / 27°0.01Climate normal
45 °Climate normal

Calypso, Monday, 16 November

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.01 in
Chance of precipitation15%
Record high65° (2001)
Record low-1° (2000)
Tue, 1743° / 27°0.02Climate normal
43 °Climate normal

Calypso, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high43°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high64° (1976)
Record low-2° (1996)

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 Calypso, 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 Calypso, 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.