EN
English Español

As of 07:37 MDT

Weather in Grannis, MT

43°Current weather

Grannis, Thursday, 22 October, 07:37

Overcast. Feels like 40°. High 70°, low 43°.

Pressure30.00 inHg
Wind5.7 mph NW
Humidity87%
Visibility6.2 mi
Dew point40°

Two-week outlook for Grannis, MT: week one averages a high of 46.9° and week two 56.4°, so week two runs 9.6° warmer than week one. Around 1.4 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, October 24: 39°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 22 – October 28)46.9°30.5°1.3 in / 3 d—
2nd (October 29 – November 4)56.4°32.6°0.0 in / 0 d—

Weekend weather

Sat, October 24
Clear
39°25°
no precip.
Sun, October 25
Clear
45°28°
no precip.
Sat, October 31
Light rain
51°34°
no precip.
Sun, November 1
Mostly clear
55°31°
no precip.
Fri, 2349° / 31°0.96Snow
49 °Snow

Grannis, Friday, 23 October

Snow. High 49°, low 31°.

Pressure29.65 inHg
Wind3.2 mph SW
Humidity91%
Visibility1.8 mi
Dew point49°
Sat, 2439° / 25°0Clear
39 °Clear

Grannis, Saturday, 24 October

Clear. High 39°, low 25°.

Pressure30.42 inHg
Wind1.3 mph S
Humidity88%
Visibility6.2 mi
Dew point27°
Sun, 2545° / 28°0Clear
45 °Clear

Grannis, Sunday, 25 October

Clear. High 45°, low 28°.

Pressure30.30 inHg
Wind2.9 mph S
Humidity71%
Visibility6.2 mi
Dew point25°
Mon, 2643° / 25°0Mostly clear
43 °Mostly clear

Grannis, Monday, 26 October

Mostly clear. High 43°, low 25°.

Pressure30.33 inHg
Wind9.5 mph SE
Humidity80%
Visibility—
Dew point30°
Tue, 2744° / 34°0.15Light rain
44 °Light rain

Grannis, Tuesday, 27 October

Light rain. High 44°, low 34°.

Pressure29.97 inHg
Wind9 mph S
Humidity80%
Visibility—
Dew point34°
Wed, 2838° / 28°0.22Snow
38 °Snow

Grannis, Wednesday, 28 October

Snow. High 38°, low 28°.

Pressure30.39 inHg
Wind13.3 mph NW
Humidity74%
Visibility—
Dew point27°
Thu, 2945° / 23°0Mostly clear
45 °Mostly clear

Grannis, Thursday, 29 October

Mostly clear. High 45°, low 23°.

Pressure30.18 inHg
Wind4.3 mph W
Humidity57%
Visibility—
Dew point22°
Fri, 3057° / 33°0.02Light rain
57 °Light rain

Grannis, Friday, 30 October

Light rain. High 57°, low 33°.

Pressure29.74 inHg
Wind13.6 mph W
Humidity43%
Visibility—
Dew point29°
Sat, 3151° / 34°0.01Light rain
51 °Light rain

Grannis, Saturday, 31 October

Light rain. High 51°, low 34°.

Pressure29.77 inHg
Wind13.9 mph W
Humidity39%
Visibility—
Dew point24°
Sun, 0155° / 31°0Mostly clear
55 °Mostly clear

Grannis, Sunday, 1 November

Mostly clear. High 55°, low 31°.

Pressure29.97 inHg
Wind9.1 mph SW
Humidity34%
Visibility—
Dew point19°
Mon, 0257° / 33°0Mostly clear
57 °Mostly clear

Grannis, Monday, 2 November

Mostly clear. High 57°, low 33°.

Pressure30.21 inHg
Wind9 mph SW
Humidity28%
Visibility—
Dew point17°
Tue, 0365° / 36°0Clear
65 °Clear

Grannis, Tuesday, 3 November

Clear. High 65°, low 36°.

Pressure30.09 inHg
Wind7.8 mph SW
Humidity23%
Visibility—
Dew point16°
Wed, 0466° / 38°0Clear
66 °Clear

Grannis, Wednesday, 4 November

Clear. High 66°, low 38°.

Pressure29.91 inHg
Wind10.2 mph SW
Humidity27%
Visibility—
Dew point22°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Grannis, MT, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.