As of 02:59 MDT

Weather in Turtle Lake, MT

39°

Turtle Lake, Wednesday, 21 October, 02:59

Partly cloudy. Feels like 39°. High 62°, low 37°.

Pressure30.09 inHg

Wind1 mph SE

Humidity89%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Turtle Lake, MT: average high 43.5°, average low 33.8°. That is 2.7° below the climate normal for October. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 8 days and 1.7 inches. The warmest day looks like 22 October (64.1°), the coolest 28 October (20.9°).

43.5°/33.8°

Average high / low

−2.7°

Below normal

5 / 8

Wet days / normal

1.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
21 October – 30 October	45.7°	50.1°	-2.5°
31 October – 9 November	40°	44.6°	-2.6°
10 November – 19 November	at normal	40.7°	—

October records over 66 years

81.7°1 October 1992All-time high

6.4°26 October 2020All-time low

Thu, 2264° / 39°

64 °

Turtle Lake, Thursday, 22 October

Overcast. High 64°, low 39°.

Pressure29.88 inHg

Wind4.1 mph N

Humidity66%

Visibility—

Dew point47°

Fri, 2353° / 44°

0.33

53 °

Turtle Lake, Friday, 23 October

Rain. High 53°, low 44°.

Pressure29.88 inHg

Wind9.8 mph N

Humidity87%

Visibility2.1 mi

Dew point46°

Sat, 2450° / 42°

50 °

Turtle Lake, Saturday, 24 October

Partly cloudy. High 50°, low 42°.

Pressure30.24 inHg

Wind2 mph SE

Humidity53%

Visibility6.2 mi

Dew point30°

Sun, 2548° / 42°

48 °

Turtle Lake, Sunday, 25 October

Partly cloudy. High 48°, low 42°.

Pressure30.24 inHg

Wind8.5 mph N

Humidity71%

Visibility—

Dew point36°

Mon, 2646° / 37°

0.08

46 °

Turtle Lake, Monday, 26 October

Snow. High 46°, low 37°.

Pressure30.18 inHg

Wind7 mph NE

Humidity74%

Visibility—

Dew point35°

Tue, 2733° / 24°

0.13

33 °

Turtle Lake, Tuesday, 27 October

Light snow. High 33°, low 24°.

Pressure30.39 inHg

Wind4.2 mph SW

Humidity91%

Visibility—

Dew point28°

Wed, 2831° / 21°

31 °

Turtle Lake, Wednesday, 28 October

Overcast. High 31°, low 21°.

Pressure30.59 inHg

Wind3.4 mph W

Humidity90%

Visibility—

Dew point24°

Thu, 2933° / 28°

33 °

Turtle Lake, Thursday, 29 October

Overcast. High 33°, low 28°.

Pressure30.33 inHg

Wind2.8 mph W

Humidity91%

Visibility—

Dew point29°

Fri, 3036° / 29°

36 °

Turtle Lake, Friday, 30 October

Overcast. High 36°, low 29°.

Pressure30.03 inHg

Wind2.4 mph SE

Humidity96%

Visibility—

Dew point33°

Sat, 3138° / 35°

38 °

Turtle Lake, Saturday, 31 October

Overcast. High 38°, low 35°.

Pressure29.91 inHg

Wind2.5 mph W

Humidity97%

Visibility—

Dew point37°

Sun, 0144° / 36°

44 °

Turtle Lake, Sunday, 1 November

Overcast. High 44°, low 36°.

Pressure29.91 inHg

Wind2.6 mph W

Humidity97%

Visibility—

Dew point39°

Mon, 0244° / 39°

0.26

44 °

Turtle Lake, Monday, 2 November

Rain. High 44°, low 39°.

Pressure29.77 inHg

Wind4.5 mph NW

Humidity91%

Visibility—

Dew point41°

Tue, 0342° / 31°

0.52

42 °

Turtle Lake, Tuesday, 3 November

Snow. High 42°, low 31°.

Pressure30.21 inHg

Wind10.6 mph N

Humidity75%

Visibility—

Dew point30°

Wed, 0436° / 30°

36 °

Turtle Lake, Wednesday, 4 November

Overcast. High 36°, low 30°.

Pressure30.33 inHg

Wind2.7 mph NW

Humidity68%

Visibility—

Dew point25°

Thu, 0536° / 27°

36 °

Turtle Lake, Thursday, 5 November

Clear. High 36°, low 27°.

Pressure30.47 inHg

Wind2.4 mph NW

Humidity73%

Visibility—

Dew point25°

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

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)

Tue, 1041° / 31°

0.1

41 °

Turtle Lake, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.1 in

Chance of precipitation57%

Record high59° (2016)

Record low4° (1986)

Wed, 1141° / 30°

0.11

41 °

Turtle Lake, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°

Average low30°

Average precipitation0.11 in

Chance of precipitation45%

Record high59° (2016)

Record low7° (2014)

Thu, 1242° / 31°

0.11

42 °

Turtle Lake, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°

Average low31°

Average precipitation0.11 in

Chance of precipitation50%

Record high62° (1999)

Record low9° (2014)

Fri, 1342° / 31°

0.09

42 °

Turtle Lake, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°

Average low31°

Average precipitation0.09 in

Chance of precipitation53%

Record high62° (2025)

Record low12° (2014)

Sat, 1441° / 31°

0.11

41 °

Turtle Lake, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.11 in

Chance of precipitation52%

Record high59° (1999)

Record low13° (2014)

Sun, 1542° / 30°

0.06

42 °

Turtle Lake, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high42°

Average low30°

Average precipitation0.06 in

Chance of precipitation35%

Record high61° (2021)

Record low12° (2014)

Mon, 1641° / 31°

0.13

41 °

Turtle Lake, Monday, 16 November

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.13 in

Chance of precipitation52%

Record high57° (2025)

Record low13° (1996)

Tue, 1740° / 31°

0.11

40 °

Turtle Lake, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high40°

Average low31°

Average precipitation0.11 in

Chance of precipitation62%

Record high56° (1976)

Record low16° (1968)

Wed, 1839° / 29°

0.12

39 °

Turtle Lake, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high39°

Average low29°

Average precipitation0.12 in

Chance of precipitation57%

Record high58° (2008)

Record low8° (1985)

Thu, 1938° / 28°

0.11

38 °

Turtle Lake, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high38°

Average low28°

Average precipitation0.11 in

Chance of precipitation43%

Record high52° (2008)

Record low6° (1978)

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.