Isanti County, MN Weather Forecast
County weather hub
Patchy Fog
Compare major city weather across Isanti County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Patchy fog. Cloudy, with a low around 52. East northeast wind around 5 mph. New rainfall amounts between a tenth and quarter of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Isanti County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Isanti County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 18 to May 24, 2026
- Latest sync
- May 18, 2026 6:24 AM CDT
- Forecast office
- MPX
- Source
- NOAA / NWS
Daily Outlook
This Week in Isanti County
Sunday looks like the warmest upcoming period in Isanti County at 79 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Tuesday at about 15 to 20 mph NW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- May 18, 2026 6:24 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
Patchy fog before 10am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 62. North wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Cloudy. Low around 44, with temperatures rising to around 47 overnight. North northwest wind 5 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of rain showers before 8am. Mostly cloudy, with a high near 55. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Areas of frost after 5am. Mostly cloudy, with a low around 37. Northwest wind 0 to 15 mph.
Areas of frost before 7am. Sunny, with a high near 62. West northwest wind 0 to 5 mph.
Partly cloudy, with a low around 41. South southeast wind around 5 mph.
Mostly sunny, with a high near 67. South southeast wind 5 to 15 mph.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 46. Southeast wind around 10 mph. Chance of precipitation is 20%.
A chance of rain showers. Partly sunny, with a high near 67. Southeast wind around 10 mph. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 47. East southeast wind 5 to 10 mph. Chance of precipitation is 40%.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 71. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. South southeast wind around 5 mph. Chance of precipitation is 30%.
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. South southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 18
|
Patchy Fog
|
52°F |
5 mph
ENE
|
|
Monday
May 18
|
Patchy Fog then Slight Chance Showers And Thunderstorms
|
62°F |
5 mph
N
|
|
Monday Night
May 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
44°F |
5 to 15 mph
NNW
|
|
Tuesday
May 19
|
Chance Rain Showers then Mostly Cloudy
|
55°F |
15 to 20 mph
NW
|
|
Tuesday Night
May 19
|
Mostly Cloudy then Areas Of Frost
|
37°F |
0 to 15 mph
NW
|
|
Wednesday
May 20
|
Areas Of Frost then Sunny
|
62°F |
0 to 5 mph
WNW
|
|
Wednesday Night
May 20
|
Partly Cloudy
|
41°F |
5 mph
SSE
|
|
Thursday
May 21
|
Mostly Sunny
|
67°F |
5 to 15 mph
SSE
|
|
Thursday Night
May 21
|
Mostly Cloudy then Slight Chance Rain Showers
|
46°F |
10 mph
SE
|
|
Friday
May 22
|
Chance Rain Showers
|
67°F |
10 mph
SE
|
|
Friday Night
May 22
|
Chance Rain Showers
|
47°F |
5 to 10 mph
ESE
|
|
Saturday
May 23
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
71°F |
5 to 10 mph
SE
|
|
Saturday Night
May 23
|
Chance Showers And Thunderstorms
|
51°F |
5 mph
SSE
|
|
Sunday
May 24
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
79°F |
5 to 10 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Isanti County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Isanti County.
Largest mapped city population in this region: 2,514.