As of 04:55 MDT

Weather in Waterloo, MT

35°Current weather

Waterloo, Sunday, 11 October, 04:55

Light snow. Feels like 30°. High 38°, low 30°.

Pressure29.88 inHg
Wind6.5 mph N
Humidity91%
Visibility2.8 mi
Dew point33°

Monthly outlook for Waterloo, MT: average high 55.2°, average low 38.3°. That is 0.6° below the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 19 October (68.9°), the coolest 13 October (25.6°).

55.2°/38.3°
Average high / low
−0.6°
Below normal
3 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October52.8°57.3°-2.5°
21 October – 30 October59.1°52.8°+3.5°
31 October – 9 Novemberat normal46.4°—

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).

Mon, 1237° / 26°0.06Snow
37 °Snow

Waterloo, Monday, 12 October

Snow. High 37°, low 26°.

Pressure30.15 inHg
Wind3.7 mph NE
Humidity94%
Visibility6.2 mi
Dew point27°
Tue, 1340° / 26°0Mostly clear
40 °Mostly clear

Waterloo, Tuesday, 13 October

Mostly clear. High 40°, low 26°.

Pressure30.09 inHg
Wind1.8 mph SE
Humidity74%
Visibility—
Dew point30°
Wed, 1446° / 30°0Clear
46 °Clear

Waterloo, Wednesday, 14 October

Clear. High 46°, low 30°.

Pressure30.24 inHg
Wind3.9 mph SE
Humidity61%
Visibility6.2 mi
Dew point25°
Thu, 1551° / 33°0Clear
51 °Clear

Waterloo, Thursday, 15 October

Clear. High 51°, low 33°.

Pressure30.56 inHg
Wind6.4 mph NE
Humidity54%
Visibility—
Dew point30°
Fri, 1662° / 36°0Clear
62 °Clear

Waterloo, Friday, 16 October

Clear. High 62°, low 36°.

Pressure30.42 inHg
Wind8.5 mph SW
Humidity41%
Visibility—
Dew point29°
Sat, 1765° / 44°0Partly cloudy
65 °Partly cloudy

Waterloo, Saturday, 17 October

Partly cloudy. High 65°, low 44°.

Pressure30.15 inHg
Wind21 mph SW
Humidity27%
Visibility—
Dew point23°
Sun, 1865° / 50°0Overcast
65 °Overcast

Waterloo, Sunday, 18 October

Overcast. High 65°, low 50°.

Pressure30.03 inHg
Wind18.5 mph SW
Humidity36%
Visibility—
Dew point31°
Mon, 1969° / 49°0Overcast
69 °Overcast

Waterloo, Monday, 19 October

Overcast. High 69°, low 49°.

Pressure29.88 inHg
Wind17.9 mph W
Humidity33%
Visibility—
Dew point32°
Tue, 2055° / 43°0Overcast
55 °Overcast

Waterloo, Tuesday, 20 October

Overcast. High 55°, low 43°.

Pressure29.97 inHg
Wind9.5 mph SW
Humidity39%
Visibility—
Dew point27°
Wed, 2155° / 37°0Overcast
55 °Overcast

Waterloo, Wednesday, 21 October

Overcast. High 55°, low 37°.

Pressure30.15 inHg
Wind9.2 mph SW
Humidity33%
Visibility—
Dew point21°
Thu, 2258° / 43°0.04Light rain
58 °Light rain

Waterloo, Thursday, 22 October

Light rain. High 58°, low 43°.

Pressure29.94 inHg
Wind9.7 mph SW
Humidity30%
Visibility—
Dew point23°
Fri, 2356° / 42°0.04Light rain
56 °Light rain

Waterloo, Friday, 23 October

Light rain. High 56°, low 42°.

Pressure30.21 inHg
Wind7.7 mph SW
Humidity56%
Visibility—
Dew point36°
Sat, 2458° / 39°0Overcast
58 °Overcast

Waterloo, Saturday, 24 October

Overcast. High 58°, low 39°.

Pressure30.33 inHg
Wind3.4 mph E
Humidity44%
Visibility—
Dew point30°
Sun, 2562° / 41°0Clear
62 °Clear

Waterloo, Sunday, 25 October

Clear. High 62°, low 41°.

Pressure30.33 inHg
Wind5.3 mph SW
Humidity35%
Visibility—
Dew point27°
Mon, 2664° / 44°0Clear
64 °Clear

Waterloo, Monday, 26 October

Clear. High 64°, low 44°.

Pressure30.12 inHg
Wind14 mph SW
Humidity25%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2752° / 31°0.03Climate normal
52 °Climate normal

Waterloo, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high52°
Average low31°
Average precipitation0.03 in
Chance of precipitation20%
Record high68° (1987)
Record low6° (2023)
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)

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.