Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Mostly Cloudy

35°F

2°C

Humidity	90%
Wind Speed	SE 5 mph
Barometer	30.24 in
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	31°F (-1°C)
Last update	20 May 11:15 pm MDT

More Information:

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

Extended Forecast for

4 Miles W Saint Marys Glacier CO

Tonight
Low: 17 °F
Mostly Clear
Thursday
High: 34 °F
Mostly Sunny
then Chance
Snow Showers
Thursday Night
Low: 21 °F
Snow Showers
Likely
Friday
High: 33 °F
Chance Snow
Showers and
Breezy
Friday Night
Low: 22 °F
Chance Snow
Showers
Saturday
High: 37 °F
Breezy.
Mostly Sunny
then Slight
Chance Snow
Showers
Saturday Night
Low: 27 °F
Mostly Clear
Sunday
High: 52 °F
Sunny
Sunday Night
Low: 32 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 17. Southwest wind 7 to 9 mph, with gusts as high as 15 mph.

Thursday

A 50 percent chance of snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 34. West wind 8 to 14 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

Thursday Night

Snow showers likely, mainly before midnight. Some thunder is also possible. Mostly cloudy, with a low around 21. West wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Friday

A 30 percent chance of snow showers. Some thunder is also possible. Partly sunny, with a high near 33. Breezy, with a west wind 10 to 16 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

Friday Night

A 30 percent chance of snow showers, mainly before midnight. Some thunder is also possible. Mostly cloudy, with a low around 22. West southwest wind 8 to 13 mph, with gusts as high as 20 mph.

Saturday

A 20 percent chance of snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 37. Breezy.

Saturday Night

Mostly clear, with a low around 27.

Sunday

Sunny, with a high near 52.

Sunday Night

Partly cloudy, with a low around 32.

Memorial Day

A chance of rain and snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 55.

Monday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 35.