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Frosty nights ahead in the Midwest, Northeast. Here's when the coldest nights are expected. Chevron right
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Great Falls, MT

71°F
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Great Falls

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Great Falls, MT Weather
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May 8 - May 22

Fri 5/8

74° /46°
6%
Some sunshine giving way to clouds; breezy this afternoon

RealFeel®75°

RealFeel Shade™70°

Max UV Index8.0 (Very High)

WindW 14 mph

Sat 5/9

64° /43°
84%
Mostly cloudy and cooler with a couple of showers

RealFeel®63°

RealFeel Shade™63°

Max UV Index3.0 (Moderate)

WindNW 10 mph

Sun 5/10

80° /47°
1%
Mostly cloudy and warmer

RealFeel®80°

RealFeel Shade™77°

Max UV Index6.0 (High)

WindSW 12 mph

Mon 5/11

74° /41°
3%
Warm with partial sunshine

RealFeel®74°

RealFeel Shade™70°

Max UV Index8.0 (Very High)

WindWNW 13 mph

Tue 5/12

78° /49°
3%
Very warm with sun and some clouds

RealFeel®81°

RealFeel Shade™76°

Max UV Index8.0 (Very High)

WindSSE 6 mph

Wed 5/13

79° /51°
25%
Breezy and very warm with intervals of clouds and sunshine

RealFeel®79°

RealFeel Shade™75°

Max UV Index8.0 (Very High)

WindWSW 16 mph

Thu 5/14

75° /49°
4%
Mostly sunny, breezy and warm

RealFeel®74°

RealFeel Shade™70°

Max UV Index8.0 (Very High)

WindWSW 17 mph

Fri 5/15

75° /45°
49%
Increasing cloudiness and remaining warm; an afternoon shower in places

RealFeel®79°

RealFeel Shade™72°

Max UV Index8.0 (Very High)

WindWSW 13 mph

Sat 5/16

68° /46°
58%
A bit of morning rain; otherwise, cloudy

RealFeel®71°

RealFeel Shade™63°

Max UV Index8.0 (Very High)

WindWSW 12 mph

Sun 5/17

68° /41°
0%
Partly sunny

RealFeel®71°

RealFeel Shade™64°

Max UV Index9.0 (Very High)

WindWSW 13 mph

Mon 5/18

68° /43°
49%
A shower in places in the morning; otherwise, cloudy

RealFeel®68°

RealFeel Shade™66°

Max UV Index3.0 (Moderate)

WindSW 6 mph

Tue 5/19

70° /43°
6%
Clouds and breaks of sun

RealFeel®71°

RealFeel Shade™67°

Max UV Index5.0 (Moderate)

WindW 9 mph

Wed 5/20

69° /44°
66%
Mostly cloudy with a couple of showers and a thunderstorm in the afternoon

RealFeel®70°

RealFeel Shade™66°

Max UV Index4.0 (Moderate)

WindWSW 8 mph

Thu 5/21

77° /48°
25%
Mostly cloudy and warmer

RealFeel®77°

RealFeel Shade™75°

Max UV Index2.0 (Low)

WindSW 2 mph

Fri 5/22

64° /45°
60%
Rain at times

RealFeel®63°

RealFeel Shade™61°

Max UV Index2.0 (Low)

WindSW 5 mph

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World North America United States Montana Great Falls

Weather Near Great Falls:

  • Havre, MT
  • Helena, MT
  • Lewistown, MT
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