EN
English Español

As of 20:59 MDT

Weather in Grannis, MT

51°Current weather

Grannis, Sunday, 18 October, 20:59

Clear. Feels like 48°. High 62°, low 37°.

Pressure30.06 inHg
Wind11.5 mph E
Humidity53%
Visibility6.2 mi
Dew point34°

10-day forecast for Grannis, MT: 32° to 70°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

70°
Best day: Thursday, October 22
56° · 0.2 in
Worst day: Friday, October 23

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1969° / 38°0Overcast
MorningClear38°feels 38°
AfternoonOvercast68°feels 66°
EveningClear57°feels 55°
OvernightClear46°feels 46°
69 °Overcast

Grannis, Monday, 19 October

Overcast. High 69°, low 38°.

Pressure29.97 inHg
Wind1.6 mph S
Humidity35%
Visibility6.2 mi
Dew point32°
Tue, 2065° / 42°0Partly cloudy
MorningPartly cloudy43°feels 43°
AfternoonPartly cloudy65°feels 62°
EveningClear51°feels 48°
OvernightPartly cloudy49°feels 49°
65 °Partly cloudy

Grannis, Tuesday, 20 October

Partly cloudy. High 65°, low 42°.

Pressure30.06 inHg
Wind1.9 mph NW
Humidity33%
Visibility6.2 mi
Dew point31°
Wed, 2164° / 38°0.01Light rain
MorningClear38°feels 38°
AfternoonClear63°feels 61°
EveningClear52°feels 50°
OvernightClear42°feels 40°
64 °Light rain

Grannis, Wednesday, 21 October

Light rain. High 64°, low 38°.

Pressure30.09 inHg
Wind2.6 mph SE
Humidity56%
Visibility6.2 mi
Dew point41°
Thu, 2270° / 45°0Clear
MorningClear47°feels 47°
AfternoonClear67°feels 65°
EveningOvercast56°feels 54°
OvernightClear47°feels 47°
70 °Clear

Grannis, Thursday, 22 October

Clear. High 70°, low 45°.

Pressure29.91 inHg
Wind2.4 mph SE
Humidity43%
Visibility6.2 mi
Dew point40°
Fri, 2356° / 43°0.2Rain
MorningRain50°feels 49°
AfternoonRain54°feels 52°
EveningRain45°feels 41°
OvernightRain44°feels 43°
56 °Rain

Grannis, Friday, 23 October

Rain. High 56°, low 43°.

Pressure29.59 inHg
Wind8.7 mph NW
Humidity64%
Visibility—
Dew point43°
Sat, 2452° / 37°0Mostly clear
MorningMostly clear40°feels 37°
AfternoonMostly clear46°feels 45°
EveningMostly clear45°feels 42°
OvernightMostly clear41°feels 38°
52 °Mostly clear

Grannis, Saturday, 24 October

Mostly clear. High 52°, low 37°.

Pressure30.12 inHg
Wind8.2 mph W
Humidity52%
Visibility—
Dew point28°
Sun, 2550° / 36°0.04Light rain
MorningLight rain40°feels 36°
AfternoonLight rain48°feels 45°
EveningLight rain42°feels 40°
OvernightLight rain37°feels 33°
50 °Light rain

Grannis, Sunday, 25 October

Light rain. High 50°, low 36°.

Pressure30.00 inHg
Wind6.6 mph SW
Humidity33%
Visibility—
Dew point19°
Mon, 2654° / 32°0Clear
MorningClear37°feels 32°
AfternoonClear47°feels 45°
EveningClear47°feels 47°
OvernightClear39°feels 36°
54 °Clear

Grannis, Monday, 26 October

Clear. High 54°, low 32°.

Pressure30.06 inHg
Wind6.8 mph W
Humidity48%
Visibility—
Dew point26°
Tue, 2761° / 32°0Clear
MorningClear38°feels 33°
AfternoonClear52°feels 49°
EveningClear52°feels 49°
OvernightClear42°feels 41°
61 °Clear

Grannis, Tuesday, 27 October

Clear. High 61°, low 32°.

Pressure29.77 inHg
Wind6 mph W
Humidity35%
Visibility—
Dew point23°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Grannis, MT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.