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

Tonight: A 30 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 48. Southeast wind 3 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Clear
then Chance
Showers
 Juneteenth

Juneteenth: Showers and thunderstorms, mainly before 2pm. High near 72. Breezy, with a southwest wind 10 to 15 mph becoming northwest 17 to 22 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers and
Breezy

 Friday
Night
Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 47. Breezy, with a northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight.
Partly Cloudy
and Breezy
then Mostly
Clear
 Saturday

Saturday: Mostly cloudy through mid morning, then becoming sunny, with a high near 75. North wind 5 to 7 mph.
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 48. Northeast wind 8 to 10 mph.
Partly Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 74. East northeast wind 9 to 14 mph.
Mostly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 50. Northeast wind 6 to 15 mph.
Mostly Cloudy

 Monday

Monday: Partly sunny, with a high near 75. Northeast wind 6 to 9 mph becoming south southeast in the afternoon.
Partly Sunny

 Monday
Night
Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. East southeast wind 7 to 10 mph becoming south after midnight. Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
Lo 48 °F Hi 72 °F Lo 47 °F Hi 75 °F Lo 48 °F Hi 74 °F Lo 50 °F Hi 75 °F Lo 53 °F

 

Tonight
 
 A 30 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 48. Southeast wind 3 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
 
 Showers and thunderstorms, mainly before 2pm. High near 72. Breezy, with a southwest wind 10 to 15 mph becoming northwest 17 to 22 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
 Mostly cloudy, then gradually becoming clear, with a low around 47. Breezy, with a northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight.
Saturday
 
 Mostly cloudy through mid morning, then becoming sunny, with a high near 75. North wind 5 to 7 mph.
Saturday Night
 
 Partly cloudy, with a low around 48. Northeast wind 8 to 10 mph.
Sunday
 
 Mostly sunny, with a high near 74. East northeast wind 9 to 14 mph.
Sunday Night
 
 Mostly cloudy, with a low around 50. Northeast wind 6 to 15 mph.
Monday
 
 Partly sunny, with a high near 75. Northeast wind 6 to 9 mph becoming south southeast in the afternoon.
Monday Night
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. East southeast wind 7 to 10 mph becoming south after midnight. Chance of precipitation is 60%.
Tuesday
 
 A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 73. South southwest wind 9 to 16 mph becoming west in the afternoon. Chance of precipitation is 60%.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 51. West northwest wind 7 to 14 mph.
Wednesday
 
 A 20 percent chance of showers. Mostly sunny, with a high near 76. North wind 9 to 11 mph.
Wednesday Night
 
 Mostly clear, with a low around 51. North wind 5 to 10 mph becoming light north northeast after midnight.
Thursday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. Northeast wind 5 to 9 mph becoming southeast in the afternoon.

 

Forecast from NOAA-NWS for Casselton ND.