National Weather Service Forecast for: Grafton ND
Issued by: National Weather Service Grand Forks, ND
Updated: 9:37 pm CDT Jun 18, 2026
 
Tonight

Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 48. Southwest wind 3 to 5 mph.
Mostly Cloudy
then Slight
Chance
Showers
 Juneteenth

Juneteenth: Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 68. West southwest wind 6 to 15 mph becoming north in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Friday
Night
Friday Night: Partly cloudy, with a low around 45. Northwest wind 6 to 14 mph.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 70. North wind 5 to 7 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 45. North northeast wind 5 to 7 mph.
Partly Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 71. Northeast wind 6 to 11 mph.
Mostly Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 48. Northeast wind 5 to 10 mph becoming light north northeast after midnight.
Partly Cloudy

 Monday

Monday: Mostly cloudy, with a high near 72. North northeast wind 5 to 8 mph becoming south southeast in the afternoon.
Mostly Cloudy

 Monday
Night
Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. South wind around 6 mph. Chance of precipitation is 50%.
Slight Chance
Showers then
Chance
Showers
Lo 48 °F Hi 68 °F Lo 45 °F Hi 70 °F Lo 45 °F Hi 71 °F Lo 48 °F Hi 72 °F Lo 51 °F

 

Tonight
 
 A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 48. Southwest wind 3 to 5 mph.
Juneteenth
 
 Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 68. West southwest wind 6 to 15 mph becoming north in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
 Partly cloudy, with a low around 45. Northwest wind 6 to 14 mph.
Saturday
 
 Mostly sunny, with a high near 70. North wind 5 to 7 mph.
Saturday Night
 
 Partly cloudy, with a low around 45. North northeast wind 5 to 7 mph.
Sunday
 
 Mostly sunny, with a high near 71. Northeast wind 6 to 11 mph.
Sunday Night
 
 Partly cloudy, with a low around 48. Northeast wind 5 to 10 mph becoming light north northeast after midnight.
Monday
 
 Mostly cloudy, with a high near 72. North northeast wind 5 to 8 mph becoming south southeast in the afternoon.
Monday Night
 
 A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. South wind around 6 mph. Chance of precipitation is 50%.
Tuesday
 
 A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. South southwest wind 7 to 11 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 50. Northwest wind 7 to 10 mph.
Wednesday
 
 A 30 percent chance of showers. Mostly sunny, with a high near 74. North wind 8 to 10 mph.
Wednesday Night
 
 Partly cloudy, with a low around 50. North northeast wind 5 to 7 mph becoming light and variable in the evening.
Thursday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. Light and variable wind becoming southeast 5 to 8 mph in the morning.

 

Forecast from NOAA-NWS for Grafton ND.