Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Red Flag Warning in effect from June 17, 12:00 PM MDT until June 17, 08:00 PM MDT

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

76°F

24°C

Humidity	16%
Wind Speed	W 16 G 23 mph
Barometer	30.06 in
Dewpoint	26°F (-3°C)
Visibility	10.00 mi
Heat Index	76°F (24°C)
Last update	17 Jun 7:35 pm MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Saint Marys Glacier CO

Red Flag Warning until June 17, 08:00pm

Click here for hazard details and duration

...

Red Flag Warning until June 17, 08:00pm
NOW until 8:00pm Wed
Red Flag Warning
Tonight
Low: 41 °F
Mostly Clear
and Breezy
then Clear
Thursday
High: 67 °F
Sunny then
Sunny and
Breezy
Thursday Night
Low: 45 °F
Partly Cloudy
and Breezy
then Partly
Cloudy
Juneteenth
High: 66 °F
Mostly Sunny
Friday Night
Low: 46 °F
Partly Cloudy
Saturday
High: 67 °F
Sunny and
Breezy then
Slight Chance
T-storms and
Windy
Saturday Night
Low: 44 °F
Mostly Clear
and Windy
then Clear
Sunday
High: 62 °F
Breezy. Sunny
then Slight
Chance
T-storms

Detailed Forecast

Tonight

Mostly clear, with a low around 41. Breezy, with a west northwest wind 16 to 21 mph becoming light and variable. Winds could gust as high as 33 mph.

Thursday

Sunny, with a high near 67. Breezy, with a west northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

Thursday Night

Partly cloudy, with a low around 45. Breezy, with a west wind 12 to 17 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 30 mph.

Juneteenth

Mostly sunny, with a high near 66. West wind 5 to 13 mph becoming east in the afternoon. Winds could gust as high as 23 mph.

Friday Night

Partly cloudy, with a low around 46. Southeast wind 5 to 10 mph becoming light and variable. Winds could gust as high as 21 mph.

Saturday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Windy.

Saturday Night

Mostly clear, with a low around 44. Windy.

Sunday

A slight chance of showers and thunderstorms after noon. Sunny, with a high near 62. Breezy.

Sunday Night

A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41.