As of 00:54 MDT

Weather in Waterloo, MT

31°Current weather

Waterloo, Monday, 12 October, 00:54

Light snow. Feels like 28°. High 34°, low 28°.

Pressure29.97 inHg
Wind3.1 mph N
Humidity95%
Visibility6.2 mi
Dew point30°

Monthly outlook for Waterloo, MT: average high 54.6°, average low 36.4°. That is 0.8° below the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 18 October (71°), the coolest 13 October (25.2°).

54.6°/36.4°
Average high / low
−0.8°
Below normal
1 / 4
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October54.4°57.2°-1.6°
22 October – 31 October54.9°51.9°+1.7°
1 November – 10 Novemberat normal45.8°—

October records over 66 years

86°3 October 2010All-time high
-11.4°31 October 1996All-time low

Climate normals and records are computed from the nearest reference point — Cardwell (15 mi).

Tue, 1344° / 25°0Partly cloudy
44 °Partly cloudy

Waterloo, Tuesday, 13 October

Partly cloudy. High 44°, low 25°.

Pressure30.15 inHg
Wind3.5 mph S
Humidity71%
Visibility—
Dew point30°
Wed, 1454° / 28°0Clear
54 °Clear

Waterloo, Wednesday, 14 October

Clear. High 54°, low 28°.

Pressure30.18 inHg
Wind8.4 mph S
Humidity57%
Visibility6.2 mi
Dew point30°
Thu, 1551° / 32°0Clear
51 °Clear

Waterloo, Thursday, 15 October

Clear. High 51°, low 32°.

Pressure30.65 inHg
Wind3.7 mph NE
Humidity57%
Visibility6.2 mi
Dew point32°
Fri, 1663° / 33°0Clear
63 °Clear

Waterloo, Friday, 16 October

Clear. High 63°, low 33°.

Pressure30.39 inHg
Wind10.4 mph SW
Humidity38%
Visibility—
Dew point29°
Sat, 1766° / 37°0Overcast
66 °Overcast

Waterloo, Saturday, 17 October

Overcast. High 66°, low 37°.

Pressure30.00 inHg
Wind14.4 mph S
Humidity36%
Visibility—
Dew point29°
Sun, 1871° / 51°0Overcast
71 °Overcast

Waterloo, Sunday, 18 October

Overcast. High 71°, low 51°.

Pressure29.91 inHg
Wind16.7 mph SW
Humidity32%
Visibility—
Dew point31°
Mon, 1964° / 47°0Overcast
64 °Overcast

Waterloo, Monday, 19 October

Overcast. High 64°, low 47°.

Pressure29.77 inHg
Wind16.5 mph S
Humidity37%
Visibility—
Dew point32°
Tue, 2049° / 40°0.32Snow
49 °Snow

Waterloo, Tuesday, 20 October

Snow. High 49°, low 40°.

Pressure29.77 inHg
Wind14 mph W
Humidity50%
Visibility—
Dew point29°
Wed, 2147° / 33°0Overcast
47 °Overcast

Waterloo, Wednesday, 21 October

Overcast. High 47°, low 33°.

Pressure30.12 inHg
Wind13.8 mph S
Humidity51%
Visibility—
Dew point25°
Thu, 2256° / 37°0Overcast
56 °Overcast

Waterloo, Thursday, 22 October

Overcast. High 56°, low 37°.

Pressure30.24 inHg
Wind17.9 mph SW
Humidity44%
Visibility—
Dew point27°
Fri, 2360° / 39°0Overcast
60 °Overcast

Waterloo, Friday, 23 October

Overcast. High 60°, low 39°.

Pressure29.94 inHg
Wind19.8 mph SW
Humidity41%
Visibility—
Dew point27°
Sat, 2452° / 38°0.03Light rain
52 °Light rain

Waterloo, Saturday, 24 October

Light rain. High 52°, low 38°.

Pressure29.68 inHg
Wind13.7 mph SW
Humidity42%
Visibility—
Dew point28°
Sun, 2552° / 34°0Mostly clear
52 °Mostly clear

Waterloo, Sunday, 25 October

Mostly clear. High 52°, low 34°.

Pressure30.00 inHg
Wind8.1 mph SW
Humidity51%
Visibility—
Dew point28°
Mon, 2655° / 39°0Mostly clear
55 °Mostly clear

Waterloo, Monday, 26 October

Mostly clear. High 55°, low 39°.

Pressure30.09 inHg
Wind8.5 mph SW
Humidity37%
Visibility—
Dew point24°
Tue, 2754° / 39°0Clear
54 °Clear

Waterloo, Tuesday, 27 October

Clear. High 54°, low 39°.

Pressure29.91 inHg
Wind14.1 mph SW
Humidity33%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2851° / 31°0.06Climate normal
51 °Climate normal

Waterloo, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high51°
Average low31°
Average precipitation0.06 in
Chance of precipitation33%
Record high69° (1987)
Record low4° (1991)
Thu, 2949° / 29°0.06Climate normal
49 °Climate normal

Waterloo, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high49°
Average low29°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (1964)
Record low-7° (1991)
Fri, 3048° / 29°0.04Climate normal
48 °Climate normal

Waterloo, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation28%
Record high68° (1962)
Record low-11° (1991)
Sat, 3148° / 28°0.05Climate normal
48 °Climate normal

Waterloo, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high67° (1988)
Record low-11° (1996)
Sun, 0148° / 29°0.04Climate normal
48 °Climate normal

Waterloo, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation23%
Record high67° (2025)
Record low-12° (2002)
Mon, 0247° / 29°0.03Climate normal
47 °Climate normal

Waterloo, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high64° (1965)
Record low-19° (1991)
Tue, 0347° / 28°0.04Climate normal
47 °Climate normal

Waterloo, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (1962)
Record low-13° (1991)
Wed, 0448° / 29°0.04Climate normal
48 °Climate normal

Waterloo, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation27%
Record high64° (1962)
Record low-11° (1973)
Thu, 0547° / 29°0.04Climate normal
47 °Climate normal

Waterloo, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation27%
Record high67° (2020)
Record low-5° (2003)
Fri, 0646° / 28°0.04Climate normal
46 °Climate normal

Waterloo, Friday, 6 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation32%
Record high66° (1999)
Record low6° (2017)
Sat, 0745° / 27°0.04Climate normal
45 °Climate normal

Waterloo, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (2010)
Record low2° (2000)
Sun, 0844° / 27°0.07Climate normal
44 °Climate normal

Waterloo, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high44°
Average low27°
Average precipitation0.07 in
Chance of precipitation37%
Record high64° (1999)
Record low4° (2022)
Mon, 0943° / 26°0.04Climate normal
43 °Climate normal

Waterloo, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°
Average low26°
Average precipitation0.04 in
Chance of precipitation23%
Record high63° (2016)
Record low-1° (1986)
Tue, 1042° / 24°0.04Climate normal
42 °Climate normal

Waterloo, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high42°
Average low24°
Average precipitation0.04 in
Chance of precipitation22%
Record high60° (2025)
Record low-26° (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 Waterloo, 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 Waterloo, 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.