National Weather Service Forecast for: Jamestown ND
Issued by: National Weather Service Bismarck, ND
Updated: 2:11 am CDT Aug 20, 2026
 
Overnight

Overnight: A slight chance of sprinkles. Mostly cloudy, with a steady temperature around 65. Southwest wind around 7 mph.
Slight Chance
Sprinkles

 Thursday

Thursday: Mostly sunny, with a high near 82. Breezy, with a northwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Mostly Sunny
then Mostly
Sunny and
Breezy
 Thursday
Night
Thursday Night: Mostly clear, with a low around 55. Northwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 23 mph.
Mostly Clear

 Friday

Friday: A slight chance of showers between 2pm and 3pm. Mostly sunny, with a high near 81. Light west wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Sunny then
Slight Chance
Showers
 Friday
Night
Friday Night: Mostly clear, with a low around 54. North wind 5 to 13 mph, with gusts as high as 21 mph.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 78. North wind 3 to 8 mph.
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 54. Northeast wind around 6 mph becoming southeast after midnight.
Partly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 80. Southeast wind 6 to 15 mph, with gusts as high as 24 mph.
Partly Sunny

 Sunday
Night
Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Southeast wind 10 to 13 mph, with gusts as high as 22 mph.
Chance
Showers
Lo 65 °F Hi 82 °F Lo 55 °F Hi 81 °F Lo 54 °F Hi 78 °F Lo 54 °F Hi 80 °F Lo 60 °F

 

Overnight
 
 A slight chance of sprinkles. Mostly cloudy, with a steady temperature around 65. Southwest wind around 7 mph.
Thursday
 
 Mostly sunny, with a high near 82. Breezy, with a northwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Thursday Night
 
 Mostly clear, with a low around 55. Northwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 23 mph.
Friday
 
 A slight chance of showers between 2pm and 3pm. Mostly sunny, with a high near 81. Light west wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Friday Night
 
 Mostly clear, with a low around 54. North wind 5 to 13 mph, with gusts as high as 21 mph.
Saturday
 
 Sunny, with a high near 78. North wind 3 to 8 mph.
Saturday Night
 
 Partly cloudy, with a low around 54. Northeast wind around 6 mph becoming southeast after midnight.
Sunday
 
 Partly sunny, with a high near 80. Southeast wind 6 to 15 mph, with gusts as high as 24 mph.
Sunday Night
 
 A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Southeast wind 10 to 13 mph, with gusts as high as 22 mph.
Monday
 
 Partly sunny, with a high near 84. South wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.
Monday Night
 
 Mostly clear, with a low around 61. West wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
 
 Sunny, with a high near 81. Northwest wind 10 to 17 mph, with gusts as high as 29 mph.
Tuesday Night
 
 Mostly clear, with a low around 56. Northwest wind 5 to 13 mph, with gusts as high as 20 mph.
Wednesday
 
 Mostly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Jamestown ND.