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As of 16:58 MDT

Weather in Waterloo, MT

90°Current weather

Waterloo, Saturday, 8 August, 16:58

Clear. Feels like 86°. High 90°, low 56°.

Pressure29.74 inHg
Wind11.5 mph NW
Humidity11%
Visibility6.2 mi
Dew point29°
Sun, 0987° / 55°0Clear
87 °Clear

Waterloo, Sunday, 9 August

Clear. High 87°, low 55°.

Pressure29.85 inHg
Wind4.3 mph N
Humidity12%
Visibility6.2 mi
Dew point26°
Mon, 1095° / 52°0Clear
95 °Clear

Waterloo, Monday, 10 August

Clear. High 95°, low 52°.

Pressure29.80 inHg
Wind7.2 mph SW
Humidity10%
Visibility6.2 mi
Dew point24°
Tue, 1195° / 57°0Clear
95 °Clear

Waterloo, Tuesday, 11 August

Clear. High 95°, low 57°.

Pressure29.91 inHg
Wind2.4 mph SW
Humidity11%
Visibility6.2 mi
Dew point25°
Wed, 1294° / 55°0Clear
94 °Clear

Waterloo, Wednesday, 12 August

Clear. High 94°, low 55°.

Pressure29.80 inHg
Wind0.4 mph W
Humidity12%
Visibility6.2 mi
Dew point28°
Thu, 1395° / 54°0Light rain
95 °Light rain

Waterloo, Thursday, 13 August

Light rain. High 95°, low 54°.

Pressure29.80 inHg
Wind15.7 mph SW
Humidity18%
Visibility—
Dew point34°
Fri, 1494° / 68°0Overcast
94 °Overcast

Waterloo, Friday, 14 August

Overcast. High 94°, low 68°.

Pressure29.83 inHg
Wind14.3 mph NW
Humidity17%
Visibility—
Dew point36°
Sat, 1586° / 62°0.06Light rain
86 °Light rain

Waterloo, Saturday, 15 August

Light rain. High 86°, low 62°.

Pressure30.00 inHg
Wind5.1 mph N
Humidity32%
Visibility—
Dew point44°
Sun, 1690° / 56°0Clear
90 °Clear

Waterloo, Sunday, 16 August

Clear. High 90°, low 56°.

Pressure30.00 inHg
Wind16.9 mph S
Humidity23%
Visibility—
Dew point40°
Mon, 1794° / 60°0Overcast
94 °Overcast

Waterloo, Monday, 17 August

Overcast. High 94°, low 60°.

Pressure30.00 inHg
Wind8.5 mph S
Humidity13%
Visibility—
Dew point29°
Tue, 1885° / 61°0Light rain
85 °Light rain

Waterloo, Tuesday, 18 August

Light rain. High 85°, low 61°.

Pressure29.91 inHg
Wind9.7 mph NW
Humidity22%
Visibility—
Dew point39°
Wed, 1987° / 54°0Clear
87 °Clear

Waterloo, Wednesday, 19 August

Clear. High 87°, low 54°.

Pressure30.03 inHg
Wind6.4 mph SW
Humidity25%
Visibility—
Dew point38°
Thu, 2094° / 57°0Overcast
94 °Overcast

Waterloo, Thursday, 20 August

Overcast. High 94°, low 57°.

Pressure29.91 inHg
Wind6.1 mph NW
Humidity15%
Visibility—
Dew point31°
Fri, 2197° / 63°0Clear
97 °Clear

Waterloo, Friday, 21 August

Clear. High 97°, low 63°.

Pressure29.88 inHg
Wind8.9 mph NW
Humidity14%
Visibility—
Dew point32°
Sat, 2298° / 60°0Clear
98 °Clear

Waterloo, Saturday, 22 August

Clear. High 98°, low 60°.

Pressure29.91 inHg
Wind11.3 mph N
Humidity16%
Visibility—
Dew point35°
Sun, 2395° / 60°0Overcast
95 °Overcast

Waterloo, Sunday, 23 August

Overcast. High 95°, low 60°.

Pressure29.97 inHg
Wind14.1 mph NE
Humidity24%
Visibility—
Dew point43°

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.