Armstrong, MN Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Armstrong, MN in one place.
Sunny, with a high near 70. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Armstrong, MN 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 15, 2026 8:39 AM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Armstrong, MN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 8:39 AM CDT
- Forecast office
- MPX
- Source
- NOAA / NWS
Daily Outlook
This Week in Armstrong
Thursday looks like the warmest upcoming period in Armstrong at 75 degrees F.
Tonight is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Today at about 10 to 15 mph WNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 8:39 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- MPX
- Radar station
- KMPX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 48. North northeast wind 0 to 5 mph.
Mostly sunny, with a high near 72. East wind 0 to 10 mph.
A chance of rain showers before 1am. Mostly cloudy, with a low around 55. Southeast wind 0 to 5 mph. Chance of precipitation is 30%.
Partly sunny, with a high near 75. North northeast wind 0 to 5 mph.
A chance of rain showers after 7pm. Mostly cloudy, with a low around 56. East northeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers before 1pm, then showers and thunderstorms. Mostly cloudy, with a high near 67. East southeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Showers and thunderstorms. Mostly cloudy, with a low around 57. East wind around 15 mph. Chance of precipitation is 90%.
Showers and thunderstorms likely before 1pm. Mostly cloudy, with a high near 69. North northeast wind around 10 mph. Chance of precipitation is 60%.
Mostly cloudy, with a low around 53. North wind 5 to 10 mph.
Partly sunny, with a high near 68. Northeast wind 5 to 10 mph.
Partly cloudy, with a low around 50. Northeast wind 0 to 5 mph.
Mostly sunny, with a high near 70. East northeast wind 0 to 5 mph.
Mostly clear, with a low around 50. East southeast wind 0 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Sunny
|
70°F |
10 to 15 mph
WNW
|
|
Tonight
Sep 15
|
Mostly Clear
|
48°F |
0 to 5 mph
NNE
|
|
Wednesday
Sep 16
|
Mostly Sunny
|
72°F |
0 to 10 mph
E
|
|
Wednesday Night
Sep 16
|
Chance Rain Showers
|
55°F |
0 to 5 mph
SE
|
|
Thursday
Sep 17
|
Partly Sunny
|
75°F |
0 to 5 mph
NNE
|
|
Thursday Night
Sep 17
|
Chance Rain Showers
|
56°F |
5 mph
ENE
|
|
Friday
Sep 18
|
Rain Showers
|
67°F |
10 to 15 mph
ESE
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms
|
57°F |
15 mph
E
|
|
Saturday
Sep 19
|
Showers And Thunderstorms Likely
|
69°F |
10 mph
NNE
|
|
Saturday Night
Sep 19
|
Mostly Cloudy
|
53°F |
5 to 10 mph
N
|
|
Sunday
Sep 20
|
Partly Sunny
|
68°F |
5 to 10 mph
NE
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
50°F |
0 to 5 mph
NE
|
|
Monday
Sep 21
|
Mostly Sunny
|
70°F |
0 to 5 mph
ENE
|
|
Monday Night
Sep 21
|
Mostly Clear
|
50°F |
0 to 5 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Armstrong.