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As of 14:14 MDT

Weather in Sunnyside, MT

55°Current weather

Sunnyside, Sunday, 18 October, 14:14

Clear. Feels like 52°. High 57°, low 31°.

Pressure30.03 inHg
Wind2.2 mph SE
Humidity49%
Visibility6.2 mi
Dew point36°
Mon, 1964° / 30°0Overcast
64 °Overcast

Sunnyside, Monday, 19 October

Overcast. High 64°, low 30°.

Pressure29.97 inHg
Wind1.7 mph S
Humidity49%
Visibility6.2 mi
Dew point28°
Tue, 2056° / 33°0Overcast
56 °Overcast

Sunnyside, Tuesday, 20 October

Overcast. High 56°, low 33°.

Pressure30.06 inHg
Wind3.2 mph SE
Humidity45%
Visibility6.2 mi
Dew point30°
Wed, 2157° / 39°0Clear
57 °Clear

Sunnyside, Wednesday, 21 October

Clear. High 57°, low 39°.

Pressure30.06 inHg
Wind3.3 mph SE
Humidity52%
Visibility6.2 mi
Dew point35°
Thu, 2258° / 41°0.07Light rain
58 °Light rain

Sunnyside, Thursday, 22 October

Light rain. High 58°, low 41°.

Pressure29.83 inHg
Wind3.2 mph E
Humidity66%
Visibility6.2 mi
Dew point41°
Fri, 2342° / 29°0.03Snow
42 °Snow

Sunnyside, Friday, 23 October

Snow. High 42°, low 29°.

Pressure29.88 inHg
Wind14.8 mph W
Humidity87%
Visibility—
Dew point32°
Sat, 2450° / 27°0Overcast
50 °Overcast

Sunnyside, Saturday, 24 October

Overcast. High 50°, low 27°.

Pressure30.24 inHg
Wind7.7 mph W
Humidity38%
Visibility—
Dew point20°
Sun, 2555° / 36°0Overcast
55 °Overcast

Sunnyside, Sunday, 25 October

Overcast. High 55°, low 36°.

Pressure30.03 inHg
Wind8.8 mph SW
Humidity32%
Visibility—
Dew point20°
Mon, 2646° / 32°0Overcast
46 °Overcast

Sunnyside, Monday, 26 October

Overcast. High 46°, low 32°.

Pressure29.91 inHg
Wind6.1 mph E
Humidity64%
Visibility—
Dew point29°
Tue, 2736° / 30°0.38Snow
36 °Snow

Sunnyside, Tuesday, 27 October

Snow. High 36°, low 30°.

Pressure29.77 inHg
Wind8.7 mph W
Humidity94%
Visibility—
Dew point33°
Wed, 2841° / 23°0.06Light snow
41 °Light snow

Sunnyside, Wednesday, 28 October

Light snow. High 41°, low 23°.

Pressure29.85 inHg
Wind10.6 mph W
Humidity57%
Visibility—
Dew point22°
Thu, 2934° / 15°0.25Snow
34 °Snow

Sunnyside, Thursday, 29 October

Snow. High 34°, low 15°.

Pressure29.74 inHg
Wind8.2 mph NE
Humidity79%
Visibility—
Dew point27°
Fri, 3032° / 7°0Mostly clear
32 °Mostly clear

Sunnyside, Friday, 30 October

Mostly clear. High 32°, low 7°.

Pressure30.27 inHg
Wind7.4 mph W
Humidity67%
Visibility—
Dew point15°
Sat, 3138° / 15°0Mostly clear
38 °Mostly clear

Sunnyside, Saturday, 31 October

Mostly clear. High 38°, low 15°.

Pressure30.09 inHg
Wind8.2 mph W
Humidity61%
Visibility—
Dew point19°
Sun, 0142° / 23°0Overcast
42 °Overcast

Sunnyside, Sunday, 1 November

Overcast. High 42°, low 23°.

Pressure29.94 inHg
Wind8.6 mph SW
Humidity65%
Visibility—
Dew point24°
Mon, 0244° / 32°0.01Snow
44 °Snow

Sunnyside, Monday, 2 November

Snow. High 44°, low 32°.

Pressure29.80 inHg
Wind13.3 mph SW
Humidity81%
Visibility—
Dew point36°

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 Sunnyside, 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 Sunnyside, 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.