As of 02:46 MST

Weather in Lewistown, MT

53°

Lewistown, Saturday, 7 November, 02:46

Light rain. Feels like 50°. High 60°, low 41°.

Pressure29.94 inHg

Wind3 mph SE

Humidity43%

Visibility6.2 mi

Dew point32°

See detailed hourly forecast

Monthly outlook for Lewistown, MT: average high 59.1°, average low 41.3°. That is 9.3° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 12 November (68.8°), the coolest 20 November (34.2°).

59.1°/41.3°

Average high / low

+9.3°

Above normal

0 / 4

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 November – 16 November	61.3°	43.5°	+9.9°
17 November – 26 November	55.4°	39.1°	+9°
27 November – 6 December	at normal	35.3°	—

November records over 66 years

70°7 November 1999All-time high

-27°23 November 1985All-time low

Sun, 0864° / 38°

64 °

Lewistown, Sunday, 8 November

Overcast. High 64°, low 38°.

Pressure29.85 inHg

Wind8.8 mph SW

Humidity33%

Visibility6.2 mi

Dew point34°

Mon, 0955° / 39°

55 °

Lewistown, Monday, 9 November

Overcast. High 55°, low 39°.

Pressure30.06 inHg

Wind2.1 mph E

Humidity50%

Visibility6.2 mi

Dew point35°

Tue, 1057° / 40°

57 °

Lewistown, Tuesday, 10 November

Clear. High 57°, low 40°.

Pressure30.03 inHg

Wind10.6 mph W

Humidity43%

Visibility6.2 mi

Dew point34°

Wed, 1163° / 40°

63 °

Lewistown, Wednesday, 11 November

Partly cloudy. High 63°, low 40°.

Pressure30.12 inHg

Wind5.6 mph SW

Humidity47%

Visibility—

Dew point36°

Thu, 1269° / 45°

69 °

Lewistown, Thursday, 12 November

Overcast. High 69°, low 45°.

Pressure29.94 inHg

Wind5.3 mph S

Humidity36%

Visibility—

Dew point33°

Fri, 1367° / 52°

67 °

Lewistown, Friday, 13 November

Overcast. High 67°, low 52°.

Pressure29.74 inHg

Wind5.7 mph S

Humidity18%

Visibility—

Dew point19°

Sat, 1467° / 50°

67 °

Lewistown, Saturday, 14 November

Mostly clear. High 67°, low 50°.

Pressure29.77 inHg

Wind9.4 mph W

Humidity21%

Visibility—

Dew point21°

Sun, 1561° / 48°

61 °

Lewistown, Sunday, 15 November

Overcast. High 61°, low 48°.

Pressure29.71 inHg

Wind12.7 mph SW

Humidity25%

Visibility—

Dew point22°

Mon, 1650° / 37°

50 °

Lewistown, Monday, 16 November

Overcast. High 50°, low 37°.

Pressure29.88 inHg

Wind14.2 mph W

Humidity43%

Visibility—

Dew point26°

Tue, 1752° / 35°

52 °

Lewistown, Tuesday, 17 November

Clear. High 52°, low 35°.

Pressure30.06 inHg

Wind8.9 mph SW

Humidity27%

Visibility—

Dew point14°

Wed, 1852° / 37°

52 °

Lewistown, Wednesday, 18 November

Overcast. High 52°, low 37°.

Pressure29.85 inHg

Wind13.7 mph W

Humidity27%

Visibility—

Dew point16°

Thu, 1948° / 35°

48 °

Lewistown, Thursday, 19 November

Clear. High 48°, low 35°.

Pressure30.18 inHg

Wind18.2 mph W

Humidity37%

Visibility—

Dew point19°

Fri, 2053° / 34°

53 °

Lewistown, Friday, 20 November

Partly cloudy. High 53°, low 34°.

Pressure30.36 inHg

Wind5.9 mph S

Humidity21%

Visibility—

Dew point9°

Sat, 2163° / 43°

63 °

Lewistown, Saturday, 21 November

Overcast. High 63°, low 43°.

Pressure30.12 inHg

Wind9.5 mph SW

Humidity14%

Visibility—

Dew point10°

Sun, 2264° / 47°

64 °

Lewistown, Sunday, 22 November

Clear. High 64°, low 47°.

Pressure29.97 inHg

Wind6.1 mph S

Humidity9%

Visibility—

Dew point0°

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

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)

Thu, 0336° / 20°

0.03

36 °

Lewistown, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high36°

Average low20°

Average precipitation0.03 in

Chance of precipitation23%

Record high54° (1989)

Record low-19° (1972)

Fri, 0436° / 19°

0.04

36 °

Lewistown, Friday, 4 December

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.04 in

Chance of precipitation18%

Record high57° (1979)

Record low-28° (1972)

Sat, 0533° / 17°

0.06

33 °

Lewistown, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high33°

Average low17°

Average precipitation0.06 in

Chance of precipitation32%

Record high59° (2023)

Record low-28° (1972)

Sun, 0633° / 17°

0.05

33 °

Lewistown, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high33°

Average low17°

Average precipitation0.05 in

Chance of precipitation25%

Record high56° (2023)

Record low-31° (1972)

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.