As of 11:48 MDT

Weather in Calypso, MT

66°Current weather

Calypso, Saturday, 17 October, 11:48

Mostly clear. Feels like 64°. High 73°, low 41°.

Pressure29.97 inHg
Wind11.9 mph SW
Humidity36%
Visibility6.2 mi
Dew point39°

Monthly outlook for Calypso, MT: average high 59.6°, average low 42.2°. That is 2.2° above the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 17 October (72.7°), the coolest 31 October (30.7°).

59.6°/42.2°
Average high / low
+2.2°
Above normal
2 / 2
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October63.5°57.8°+3.1°
27 October – 5 November53.1°51.2°+1.1°
6 November – 15 Novemberat normal45.4°—

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).

Sun, 1863° / 44°0Overcast
63 °Overcast

Calypso, Sunday, 18 October

Overcast. High 63°, low 44°.

Pressure30.15 inHg
Wind6.5 mph NE
Humidity33%
Visibility6.2 mi
Dew point30°
Mon, 1969° / 43°0Clear
69 °Clear

Calypso, Monday, 19 October

Clear. High 69°, low 43°.

Pressure30.03 inHg
Wind11.4 mph SE
Humidity43%
Visibility6.2 mi
Dew point40°
Tue, 2066° / 42°0Partly cloudy
66 °Partly cloudy

Calypso, Tuesday, 20 October

Partly cloudy. High 66°, low 42°.

Pressure30.00 inHg
Wind1.6 mph NE
Humidity62%
Visibility6.2 mi
Dew point46°
Wed, 2160° / 44°0Overcast
60 °Overcast

Calypso, Wednesday, 21 October

Overcast. High 60°, low 44°.

Pressure30.21 inHg
Wind6.4 mph E
Humidity84%
Visibility—
Dew point46°
Thu, 2271° / 49°0Clear
71 °Clear

Calypso, Thursday, 22 October

Clear. High 71°, low 49°.

Pressure29.88 inHg
Wind5.7 mph SE
Humidity61%
Visibility—
Dew point49°
Fri, 2368° / 50°0.21Light rain
68 °Light rain

Calypso, Friday, 23 October

Light rain. High 68°, low 50°.

Pressure29.53 inHg
Wind23.1 mph N
Humidity54%
Visibility—
Dew point49°
Sat, 2451° / 43°1.06Rain
51 °Rain

Calypso, Saturday, 24 October

Rain. High 51°, low 43°.

Pressure30.03 inHg
Wind28.1 mph NW
Humidity57%
Visibility—
Dew point33°
Sun, 2554° / 39°0Overcast
54 °Overcast

Calypso, Sunday, 25 October

Overcast. High 54°, low 39°.

Pressure30.00 inHg
Wind18.6 mph SE
Humidity40%
Visibility—
Dew point25°
Mon, 2659° / 46°0Overcast
59 °Overcast

Calypso, Monday, 26 October

Overcast. High 59°, low 46°.

Pressure29.62 inHg
Wind23.4 mph W
Humidity41%
Visibility—
Dew point30°
Tue, 2762° / 45°0Overcast
62 °Overcast

Calypso, Tuesday, 27 October

Overcast. High 62°, low 45°.

Pressure29.47 inHg
Wind22.6 mph W
Humidity29%
Visibility—
Dew point28°
Wed, 2854° / 44°0Overcast
54 °Overcast

Calypso, Wednesday, 28 October

Overcast. High 54°, low 44°.

Pressure29.88 inHg
Wind22.5 mph W
Humidity32%
Visibility—
Dew point21°
Thu, 2959° / 41°0Partly cloudy
59 °Partly cloudy

Calypso, Thursday, 29 October

Partly cloudy. High 59°, low 41°.

Pressure29.59 inHg
Wind13.8 mph W
Humidity27%
Visibility—
Dew point21°
Fri, 3046° / 37°0Overcast
46 °Overcast

Calypso, Friday, 30 October

Overcast. High 46°, low 37°.

Pressure29.74 inHg
Wind20.5 mph N
Humidity48%
Visibility—
Dew point22°
Sat, 3147° / 31°0Mostly clear
47 °Mostly clear

Calypso, Saturday, 31 October

Mostly clear. High 47°, low 31°.

Pressure29.80 inHg
Wind15 mph W
Humidity53%
Visibility—
Dew point24°
Sun, 0150° / 36°0Partly cloudy
50 °Partly cloudy

Calypso, Sunday, 1 November

Partly cloudy. High 50°, low 36°.

Pressure29.94 inHg
Wind11.1 mph E
Humidity45%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0250° / 32°0.02Climate normal
50 °Climate normal

Calypso, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°
Average low32°
Average precipitation0.02 in
Chance of precipitation8%
Record high74° (1965)
Record low-3° (1991)
Tue, 0349° / 32°0.02Climate normal
49 °Climate normal

Calypso, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (1983)
Record low-8° (1991)
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)

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.