Grassna, ND Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grassna, ND in one place.
Sunny. High near 69, with temperatures falling to around 65 in the afternoon. Northwest wind 5 to 18 mph, with gusts as high as 29 mph.
Local Weather Overview
This forecast page for Grassna, ND is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 14, 2026 10:39 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Grassna, ND.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 10:39 PM CDT
- Forecast office
- BIS
- Source
- NOAA / NWS
Daily Outlook
This Week in Grassna
Thursday looks like the warmest upcoming period in Grassna at 72 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Wednesday at about 13 to 20 mph SE.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 10:39 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- BIS
- Radar station
- KBIS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy. Low around 46, with temperatures rising to around 48 overnight. East wind 2 to 14 mph, with gusts as high as 23 mph.
A chance of rain showers after 7am. Partly sunny, with a high near 70. Southeast wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 47. East wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Partly sunny, with a high near 72. East wind around 10 mph, with gusts as high as 20 mph.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Southeast wind 8 to 13 mph, with gusts as high as 21 mph.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 71. East wind 7 to 12 mph, with gusts as high as 20 mph.
A chance of rain showers. Mostly cloudy, with a low around 53. Northeast wind around 9 mph.
A chance of rain showers. Mostly cloudy, with a high near 70. Northeast wind around 12 mph, with gusts as high as 21 mph.
A chance of rain showers. Mostly cloudy, with a low around 50. East wind 6 to 9 mph, with gusts as high as 18 mph.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 69. North wind 7 to 10 mph, with gusts as high as 20 mph.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 47. East wind around 8 mph, with gusts as high as 18 mph.
Mostly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Sunny
|
69°F |
5 to 18 mph
NW
|
|
Tuesday Night
Sep 15
|
Partly Cloudy
|
46°F |
2 to 14 mph
E
|
|
Wednesday
Sep 16
|
Chance Rain Showers
|
70°F |
13 to 20 mph
SE
|
|
Wednesday Night
Sep 16
|
Slight Chance Rain Showers then Partly Cloudy
|
47°F |
9 mph
E
|
|
Thursday
Sep 17
|
Partly Sunny
|
72°F |
10 mph
E
|
|
Thursday Night
Sep 17
|
Slight Chance Showers And Thunderstorms
|
54°F |
8 to 13 mph
SE
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms
|
71°F |
7 to 12 mph
E
|
|
Friday Night
Sep 18
|
Chance Rain Showers
|
53°F |
9 mph
NE
|
|
Saturday
Sep 19
|
Chance Rain Showers
|
70°F |
12 mph
NE
|
|
Saturday Night
Sep 19
|
Chance Rain Showers
|
50°F |
6 to 9 mph
E
|
|
Sunday
Sep 20
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
69°F |
7 to 10 mph
N
|
|
Sunday Night
Sep 20
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
47°F |
8 mph
E
|
|
Monday
Sep 21
|
Mostly Sunny
|
70°F |
10 mph
SE
|
Nearby Forecasts
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