As of 13:54 MST

Weather in Lewistown, MT

59°

Lewistown, Tuesday, 3 November, 13:54

Clear. Feels like 57°. High 59°, low 29°.

Pressure30.03 inHg

Wind2.1 mph S

Humidity41%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Monthly outlook for Lewistown, MT: average high 57.2°, average low 37.8°. That is 7.2° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 8 November (65°), the coolest 3 November (28.8°).

57.2°/37.8°

Average high / low

+7.2°

Above normal

0 / 4

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
3 November – 12 November	58°	44.8°	+7.3°
13 November – 22 November	55.9°	41.8°	+7.9°
23 November – 2 December	at normal	36.4°	—

November records over 66 years

70°7 November 1999All-time high

-27°23 November 1985All-time low

Wed, 0451° / 31°

51 °

Lewistown, Wednesday, 4 November

Clear. High 51°, low 31°.

Pressure30.03 inHg

Wind1.9 mph W

Humidity58%

Visibility6.2 mi

Dew point34°

Thu, 0555° / 32°

55 °

Lewistown, Thursday, 5 November

Overcast. High 55°, low 32°.

Pressure30.00 inHg

Wind3.3 mph N

Humidity42%

Visibility6.2 mi

Dew point30°

Fri, 0656° / 31°

56 °

Lewistown, Friday, 6 November

Mostly clear. High 56°, low 31°.

Pressure30.06 inHg

Wind6.5 mph SW

Humidity41%

Visibility6.2 mi

Dew point24°

Sat, 0758° / 39°

0.01

58 °

Lewistown, Saturday, 7 November

Light rain. High 58°, low 39°.

Pressure30.15 inHg

Wind4.9 mph NW

Humidity48%

Visibility6.2 mi

Dew point38°

Sun, 0865° / 41°

65 °

Lewistown, Sunday, 8 November

Overcast. High 65°, low 41°.

Pressure29.88 inHg

Wind8.5 mph SW

Humidity35%

Visibility—

Dew point33°

Mon, 0954° / 40°

54 °

Lewistown, Monday, 9 November

Mostly clear. High 54°, low 40°.

Pressure30.06 inHg

Wind14 mph NW

Humidity28%

Visibility—

Dew point19°

Tue, 1058° / 42°

58 °

Lewistown, Tuesday, 10 November

Overcast. High 58°, low 42°.

Pressure29.94 inHg

Wind12.4 mph W

Humidity31%

Visibility—

Dew point25°

Wed, 1160° / 41°

60 °

Lewistown, Wednesday, 11 November

Clear. High 60°, low 41°.

Pressure30.00 inHg

Wind7.5 mph S

Humidity27%

Visibility—

Dew point21°

Thu, 1264° / 42°

64 °

Lewistown, Thursday, 12 November

Clear. High 64°, low 42°.

Pressure29.83 inHg

Wind6.7 mph S

Humidity17%

Visibility—

Dew point13°

Fri, 1358° / 41°

58 °

Lewistown, Friday, 13 November

Clear. High 58°, low 41°.

Pressure29.83 inHg

Wind5.1 mph N

Humidity14%

Visibility—

Dew point6°

Sat, 1456° / 38°

56 °

Lewistown, Saturday, 14 November

Clear. High 56°, low 38°.

Pressure30.18 inHg

Wind4.3 mph S

Humidity23%

Visibility—

Dew point12°

Sun, 1561° / 40°

61 °

Lewistown, Sunday, 15 November

Clear. High 61°, low 40°.

Pressure30.03 inHg

Wind6.2 mph S

Humidity23%

Visibility—

Dew point17°

Mon, 1660° / 40°

60 °

Lewistown, Monday, 16 November

Clear. High 60°, low 40°.

Pressure29.91 inHg

Wind6.3 mph S

Humidity25%

Visibility—

Dew point19°

Tue, 1754° / 40°

54 °

Lewistown, Tuesday, 17 November

Overcast. High 54°, low 40°.

Pressure29.91 inHg

Wind4.3 mph N

Humidity30%

Visibility—

Dew point19°

Wed, 1846° / 38°

46 °

Lewistown, Wednesday, 18 November

Overcast. High 46°, low 38°.

Pressure29.94 inHg

Wind4.9 mph W

Humidity46%

Visibility—

Dew point24°

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

Thu, 1940° / 24°

0.05

40 °

Lewistown, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.05 in

Chance of precipitation20%

Record high59° (1989)

Record low-6° (1985)

Fri, 2041° / 24°

0.02

41 °

Lewistown, Friday, 20 November

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.02 in

Chance of precipitation25%

Record high58° (2005)

Record low-24° (1985)

Sat, 2140° / 22°

0.02

40 °

Lewistown, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high40°

Average low22°

Average precipitation0.02 in

Chance of precipitation15%

Record high61° (2002)

Record low-26° (1977)

Sun, 2238° / 22°

0.03

38 °

Lewistown, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high38°

Average low22°

Average precipitation0.03 in

Chance of precipitation28%

Record high61° (2021)

Record low-23° (1985)

Mon, 2339° / 22°

0.02

39 °

Lewistown, Monday, 23 November

Climate normal for this date — 60-year average.

Average high39°

Average low22°

Average precipitation0.02 in

Chance of precipitation15%

Record high62° (2017)

Record low-27° (1985)

Tue, 2438° / 23°

0.04

38 °

Lewistown, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high38°

Average low23°

Average precipitation0.04 in

Chance of precipitation25%

Record high55° (1976)

Record low-25° (1993)

Wed, 2537° / 22°

0.08

37 °

Lewistown, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high37°

Average low22°

Average precipitation0.08 in

Chance of precipitation43%

Record high53° (1974)

Record low-19° (1993)

Thu, 2635° / 20°

0.06

35 °

Lewistown, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high35°

Average low20°

Average precipitation0.06 in

Chance of precipitation35%

Record high62° (2017)

Record low-21° (1985)

Fri, 2736° / 19°

0.03

36 °

Lewistown, Friday, 27 November

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.03 in

Chance of precipitation18%

Record high59° (2017)

Record low-19° (1985)

Sat, 2836° / 20°

0.04

36 °

Lewistown, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high36°

Average low20°

Average precipitation0.04 in

Chance of precipitation23%

Record high59° (2021)

Record low-24° (1985)

Sun, 2936° / 19°

0.04

36 °

Lewistown, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.04 in

Chance of precipitation27%

Record high54° (2021)

Record low-15° (2006)

Mon, 3036° / 19°

0.03

36 °

Lewistown, Monday, 30 November

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.03 in

Chance of precipitation18%

Record high57° (1999)

Record low-14° (1985)

Tue, 0136° / 19°

0.04

36 °

Lewistown, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.04 in

Chance of precipitation22%

Record high63° (2021)

Record low-23° (1985)

Wed, 0235° / 20°

0.07

35 °

Lewistown, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high35°

Average low20°

Average precipitation0.07 in

Chance of precipitation35%

Record high57° (2021)

Record low-23° (1985)

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 Lewistown, 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 Lewistown, 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.