As of 18:08 MDT

Weather in Turtle Lake, MT

39°

Turtle Lake, Sunday, 11 October, 18:08

Rain. Feels like 31°. High 39°, low 36°.

Pressure29.94 inHg

Wind14.1 mph NE

Humidity67%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Turtle Lake, MT: average high 51.1°, average low 40.2°. That is 1.5° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 6 days and 1.5 inches. The warmest day looks like 17 October (69.2°), the coolest 12 October (32.3°).

51.1°/40.2°

Average high / low

−1.5°

Below normal

4 / 6

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 October – 20 October	53.6°	55°	-0.8°
21 October – 30 October	47°	50.1°	-1.8°
31 October – 9 November	at normal	44.6°	—

October records over 66 years

81.7°1 October 1992All-time high

6.4°26 October 2020All-time low

Mon, 1246° / 32°

0.06

46 °

Turtle Lake, Monday, 12 October

Snow. High 46°, low 32°.

Pressure30.06 inHg

Wind0.4 mph NW

Humidity67%

Visibility2.0 mi

Dew point29°

Tue, 1348° / 34°

48 °

Turtle Lake, Tuesday, 13 October

Partly cloudy. High 48°, low 34°.

Pressure30.21 inHg

Wind2.9 mph SW

Humidity66%

Visibility6.2 mi

Dew point33°

Wed, 1453° / 39°

53 °

Turtle Lake, Wednesday, 14 October

Clear. High 53°, low 39°.

Pressure30.24 inHg

Wind4.1 mph SW

Humidity54%

Visibility6.2 mi

Dew point33°

Thu, 1555° / 43°

55 °

Turtle Lake, Thursday, 15 October

Mostly clear. High 55°, low 43°.

Pressure30.56 inHg

Wind4.2 mph N

Humidity71%

Visibility—

Dew point42°

Fri, 1661° / 43°

61 °

Turtle Lake, Friday, 16 October

Clear. High 61°, low 43°.

Pressure30.36 inHg

Wind3.5 mph S

Humidity59%

Visibility—

Dew point39°

Sat, 1769° / 49°

69 °

Turtle Lake, Saturday, 17 October

Partly cloudy. High 69°, low 49°.

Pressure30.00 inHg

Wind14.7 mph SW

Humidity42%

Visibility—

Dew point36°

Sun, 1862° / 48°

62 °

Turtle Lake, Sunday, 18 October

Partly cloudy. High 62°, low 48°.

Pressure30.00 inHg

Wind10.4 mph W

Humidity49%

Visibility—

Dew point38°

Mon, 1954° / 44°

54 °

Turtle Lake, Monday, 19 October

Overcast. High 54°, low 44°.

Pressure29.88 inHg

Wind4.2 mph N

Humidity43%

Visibility—

Dew point30°

Tue, 2049° / 42°

0.28

49 °

Turtle Lake, Tuesday, 20 October

Rain. High 49°, low 42°.

Pressure29.88 inHg

Wind15.4 mph SW

Humidity76%

Visibility—

Dew point37°

Wed, 2147° / 40°

0.01

47 °

Turtle Lake, Wednesday, 21 October

Light rain. High 47°, low 40°.

Pressure29.88 inHg

Wind9.6 mph S

Humidity65%

Visibility—

Dew point34°

Thu, 2243° / 40°

0.06

43 °

Turtle Lake, Thursday, 22 October

Light rain. High 43°, low 40°.

Pressure30.18 inHg

Wind3.6 mph S

Humidity87%

Visibility—

Dew point38°

Fri, 2348° / 41°

0.01

48 °

Turtle Lake, Friday, 23 October

Light rain. High 48°, low 41°.

Pressure30.59 inHg

Wind4.3 mph E

Humidity69%

Visibility—

Dew point36°

Sat, 2449° / 35°

49 °

Turtle Lake, Saturday, 24 October

Clear. High 49°, low 35°.

Pressure30.56 inHg

Wind4.4 mph SE

Humidity59%

Visibility—

Dew point30°

Sun, 2549° / 37°

49 °

Turtle Lake, Sunday, 25 October

Clear. High 49°, low 37°.

Pressure30.42 inHg

Wind6.7 mph NE

Humidity61%

Visibility—

Dew point33°

Mon, 2646° / 38°

46 °

Turtle Lake, Monday, 26 October

Overcast. High 46°, low 38°.

Pressure30.36 inHg

Wind5.1 mph NW

Humidity56%

Visibility—

Dew point29°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2749° / 36°

0.12

49 °

Turtle Lake, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.12 in

Chance of precipitation52%

Record high62° (1985)

Record low21° (1971)

Wed, 2849° / 36°

0.1

49 °

Turtle Lake, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.1 in

Chance of precipitation47%

Record high62° (2008)

Record low14° (1971)

Thu, 2947° / 35°

0.11

47 °

Turtle Lake, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.11 in

Chance of precipitation48%

Record high64° (1987)

Record low12° (1991)

Fri, 3046° / 34°

0.08

46 °

Turtle Lake, Friday, 30 October

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.08 in

Chance of precipitation38%

Record high64° (2008)

Record low13° (2002)

Sat, 3146° / 34°

0.12

46 °

Turtle Lake, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.12 in

Chance of precipitation50%

Record high62° (1988)

Record low14° (2002)

Sun, 0146° / 34°

0.12

46 °

Turtle Lake, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.12 in

Chance of precipitation48%

Record high63° (1988)

Record low9° (1991)

Mon, 0246° / 34°

0.13

46 °

Turtle Lake, Monday, 2 November

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.13 in

Chance of precipitation47%

Record high62° (1981)

Record low12° (1991)

Tue, 0346° / 34°

0.07

46 °

Turtle Lake, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.07 in

Chance of precipitation38%

Record high61° (1981)

Record low10° (1973)

Wed, 0445° / 35°

0.14

45 °

Turtle Lake, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high45°

Average low35°

Average precipitation0.14 in

Chance of precipitation62%

Record high59° (1975)

Record low9° (1973)

Thu, 0545° / 34°

0.12

45 °

Turtle Lake, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°

Average low34°

Average precipitation0.12 in

Chance of precipitation63%

Record high61° (1980)

Record low15° (2003)

Fri, 0644° / 33°

0.14

44 °

Turtle Lake, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°

Average low33°

Average precipitation0.14 in

Chance of precipitation62%

Record high62° (2010)

Record low17° (2003)

Sat, 0743° / 33°

0.15

43 °

Turtle Lake, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high43°

Average low33°

Average precipitation0.15 in

Chance of precipitation57%

Record high58° (1978)

Record low16° (2017)

Sun, 0843° / 32°

0.1

43 °

Turtle Lake, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°

Average low32°

Average precipitation0.1 in

Chance of precipitation53%

Record high59° (2016)

Record low16° (1982)

Mon, 0943° / 31°

0.12

43 °

Turtle Lake, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.12 in

Chance of precipitation52%

Record high62° (2016)

Record low9° (1986)

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 Turtle Lake, 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 Turtle Lake, 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.