As of 14:38 MDT

Weather in Williams, MT

69°

Williams, Friday, 9 October, 14:38

Overcast. Feels like 67°. High 70°, low 49°.

Pressure29.41 inHg

Wind20.1 mph W

Humidity21%

Visibility6.2 mi

Dew point28°

See detailed hourly forecast

Monthly outlook for Williams, MT: average high 52.4°, average low 35.3°. That is 1° below the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 19 October (72.9°), the coolest 13 October (18.7°).

52.4°/35.3°

Average high / low

−1°

Below normal

3 / 3

Wet days / normal

1.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	47.8°	54.8°	-3.8°
19 October – 28 October	60.1°	51.7°	+4.7°
29 October – 7 November	at normal	45.1°	—

October records over 66 years

84.9°1 October 1992All-time high

-10.3°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Valier (6 mi).

Sat, 1047° / 29°

0.07

47 °

Williams, Saturday, 10 October

Snow. High 47°, low 29°.

Pressure29.85 inHg

Wind14.2 mph N

Humidity68%

Visibility6.2 mi

Dew point30°

Sun, 1132° / 24°

0.63

32 °

Williams, Sunday, 11 October

Snow. High 32°, low 24°.

Pressure30.21 inHg

Wind12.5 mph N

Humidity97%

Visibility2.1 mi

Dew point30°

Mon, 1231° / 27°

0.21

31 °

Williams, Monday, 12 October

Snow. High 31°, low 27°.

Pressure30.21 inHg

Wind0.6 mph N

Humidity98%

Visibility6.2 mi

Dew point29°

Tue, 1338° / 19°

38 °

Williams, Tuesday, 13 October

Mostly clear. High 38°, low 19°.

Pressure30.09 inHg

Wind5.7 mph W

Humidity92%

Visibility2.4 mi

Dew point30°

Wed, 1441° / 21°

41 °

Williams, Wednesday, 14 October

Clear. High 41°, low 21°.

Pressure30.15 inHg

Wind4.7 mph SW

Humidity88%

Visibility—

Dew point28°

Thu, 1542° / 37°

0.02

42 °

Williams, Thursday, 15 October

Light rain. High 42°, low 37°.

Pressure30.47 inHg

Wind12.4 mph NW

Humidity87%

Visibility—

Dew point33°

Fri, 1647° / 28°

47 °

Williams, Friday, 16 October

Mostly clear. High 47°, low 28°.

Pressure30.59 inHg

Wind17.3 mph S

Humidity50%

Visibility—

Dew point22°

Sat, 1763° / 41°

63 °

Williams, Saturday, 17 October

Overcast. High 63°, low 41°.

Pressure30.12 inHg

Wind7 mph SW

Humidity35%

Visibility—

Dew point25°

Sun, 1868° / 44°

68 °

Williams, Sunday, 18 October

Clear. High 68°, low 44°.

Pressure29.97 inHg

Wind18.4 mph W

Humidity20%

Visibility—

Dew point20°

Mon, 1973° / 48°

73 °

Williams, Monday, 19 October

Clear. High 73°, low 48°.

Pressure29.85 inHg

Wind18.5 mph W

Humidity15%

Visibility—

Dew point17°

Tue, 2057° / 42°

57 °

Williams, Tuesday, 20 October

Clear. High 57°, low 42°.

Pressure30.06 inHg

Wind13.6 mph N

Humidity57%

Visibility—

Dew point34°

Wed, 2158° / 38°

58 °

Williams, Wednesday, 21 October

Clear. High 58°, low 38°.

Pressure30.12 inHg

Wind12 mph SE

Humidity57%

Visibility—

Dew point34°

Thu, 2264° / 41°

0.02

64 °

Williams, Thursday, 22 October

Light rain. High 64°, low 41°.

Pressure29.68 inHg

Wind14 mph NW

Humidity35%

Visibility—

Dew point28°

Fri, 2355° / 43°

0.03

55 °

Williams, Friday, 23 October

Light rain. High 55°, low 43°.

Pressure29.91 inHg

Wind14.8 mph W

Humidity51%

Visibility—

Dew point32°

Sat, 2454° / 37°

54 °

Williams, Saturday, 24 October

Clear. High 54°, low 37°.

Pressure30.06 inHg

Wind7.5 mph S

Humidity45%

Visibility—

Dew point28°

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

Sun, 2551° / 33°

0.01

51 °

Williams, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high51°

Average low33°

Average precipitation0.01 in

Chance of precipitation7%

Record high70° (1990)

Record low0° (2020)

Mon, 2649° / 32°

0.05

49 °

Williams, Monday, 26 October

Climate normal for this date — 60-year average.

Average high49°

Average low32°

Average precipitation0.05 in

Chance of precipitation25%

Record high67° (1983)

Record low1° (1969)

Tue, 2749° / 31°

0.04

49 °

Williams, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high49°

Average low31°

Average precipitation0.04 in

Chance of precipitation20%

Record high66° (2001)

Record low7° (1969)

Wed, 2848° / 30°

0.03

48 °

Williams, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.03 in

Chance of precipitation15%

Record high71° (2008)

Record low-5° (1991)

Thu, 2947° / 29°

0.04

47 °

Williams, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high47°

Average low29°

Average precipitation0.04 in

Chance of precipitation23%

Record high69° (1968)

Record low-5° (1991)

Fri, 3047° / 28°

0.02

47 °

Williams, Friday, 30 October

Climate normal for this date — 60-year average.

Average high47°

Average low28°

Average precipitation0.02 in

Chance of precipitation8%

Record high71° (1962)

Record low-10° (1991)

Sat, 3146° / 29°

0.04

46 °

Williams, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.04 in

Chance of precipitation15%

Record high67° (2014)

Record low-9° (2002)

Sun, 0145° / 29°

0.04

45 °

Williams, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high45°

Average low29°

Average precipitation0.04 in

Chance of precipitation22%

Record high66° (2008)

Record low-16° (1984)

Mon, 0246° / 29°

0.04

46 °

Williams, Monday, 2 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.04 in

Chance of precipitation23%

Record high68° (1981)

Record low-16° (1991)

Tue, 0346° / 29°

0.02

46 °

Williams, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.02 in

Chance of precipitation12%

Record high70° (1962)

Record low-4° (1991)

Wed, 0446° / 30°

0.04

46 °

Williams, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high46°

Average low30°

Average precipitation0.04 in

Chance of precipitation25%

Record high65° (2010)

Record low-2° (2003)

Thu, 0544° / 28°

0.03

44 °

Williams, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high44°

Average low28°

Average precipitation0.03 in

Chance of precipitation27%

Record high71° (2010)

Record low-13° (2003)

Fri, 0643° / 27°

0.04

43 °

Williams, Friday, 6 November

Climate normal for this date — 60-year average.

Average high43°

Average low27°

Average precipitation0.04 in

Chance of precipitation27%

Record high67° (2010)

Record low-6° (1971)

Sat, 0742° / 27°

0.03

42 °

Williams, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high42°

Average low27°

Average precipitation0.03 in

Chance of precipitation20%

Record high64° (2010)

Record low-9° (1973)

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 Williams, 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 Williams, 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.