Heron Lake, MN Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Heron Lake, MN.

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Current Conditions — Heron Lake, MN

SLAYTON (KDVP)

Heavy Rain

50.2 F
Humidity:97%
Wind Speed:E 3.4 mph
Barometer:29.66 in
Dewpoint:49.3 F
Visibility:3.00 mi
Precip:00.01 in
Heat Index:NA
Wind Chill:NA
Apr 27 2026, 02:13 AM CDT
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5-Day Forecast — Heron Lake, MN

Monday

High 60 °F
T-storms
Monday
Night
Low 33 °F
Chance of Rain
Tuesday

High 53 °F
Mostly Cloudy
Tuesday
Night
Low 35 °F
Mostly Cloudy
Wednesday

High 59 °F
Slight Chance of Rain Showers
Wednesday
Night
Low 37 °F
Mostly Clear
Thursday

High 57 °F
Slight Chance of Rain Showers
Thursday
Night
Low 33 °F
Mostly Clear
Friday

High 60 °F
Mostly Sunny

Detailed Forecast — Heron Lake, MN

Monday
Thunderstorms. High near 60°F. Wind 9 to 25 mph, with gusts as high as 36 mph.
Monday Night
Chance of Rain. Low around 33°F. Wind 15 to 25 mph, with gusts as high as 36 mph.
Tuesday
Mostly Cloudy. High near 53°F. Wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly Cloudy. Low around 35°F. Wind 5 to 6 mph, with gusts as high as 12 mph.
Wednesday
Slight Chance of Rain Showers. High near 59°F. Wind 7 to 12 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly Clear. Low around 37°F. Wind around 3 mph, with gusts as high as 9 mph.
Thursday
Slight Chance of Rain Showers. High near 57°F. Wind around 13 mph, with gusts as high as 17 mph.
Thursday Night
Mostly Clear. Low around 33°F. Wind around 2 mph, with gusts as high as 5 mph.
Friday
Mostly Sunny. High near 60°F. Wind around 7 mph, with gusts as high as 10 mph.
Friday Night
Mostly Clear. Low around 39°F. Wind around 3 mph, with gusts as high as 8 mph.
Saturday
Mostly Sunny. High near 71°F. Wind 10 to 12 mph, with gusts as high as 15 mph.
Saturday Night
Partly Cloudy. Low around 44°F. Wind around 6 mph, with gusts as high as 12 mph.
Sunday
Partly Sunny. High near 71°F. Wind 9 to 12 mph, with gusts as high as 16 mph.
MN Radar
Current Radar • MN
Day 1 Outlook • April 27, 2026

Observation History — Heron Lake, MN

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
02:13 AM CDT E 3.4 3.00 Heavy Rain 00.01 50.2 49.3 97% NA NA 29.66 1004.4
01:53 AM CDT 5.8 5.00 Light Rain 00.10 49.6 48.7 97% 47.3 NA 29.66 1004.4
01:33 AM CDT 5.8 5.00 Light Rain 00.10 49.1 48.2 97% 46.8 NA 29.68 1004.8
01:13 AM CDT 6.9 5.00 Rain 00.02 49.1 48.2 97% 46.2 NA 29.68 1005.1
12:53 AM CDT 11.4 7.00 Light Drizzle 00.07 48.7 47.7 96% 44.1 NA 29.68 1004.8
12:33 AM CDT NE 10.3 5.00 Light Rain 00.07 48.9 47.7 95% 44.6 NA 29.68 1005.1
12:13 AM CDT NE 10.3 G 17.2 5.00 Rain 00.03 48.6 47.5 96% 44.2 NA 29.69 1005.4
11:53 PM CDT 12.8 7.00 Light Rain 00.13 48.6 47.3 95% 43.3 NA 29.70 1005.8
11:33 PM CDT NE 10.3 G 20.8 4.00 Rain 00.11 48.6 47.5 96% 44.2 NA 29.71 1006.1
11:13 PM CDT NE 12.8 G 19.7 7.00 Rain 00.02 48.2 46.9 95% 43.0 NA 29.73 1006.8
10:53 PM CDT 10.3 G 17.2 4.00 Heavy Rain 00.37 48.2 46.8 95% 43.7 NA 29.74 1007.1
10:33 PM CDT NE 10.3 G 19.7 2.50 Heavy Rain 00.22 48.2 46.9 95% 43.7 NA 29.75 1007.5
10:13 PM CDT 11.4 5.00 Rain 00.03 48.4 47.3 96% 43.5 NA 29.77 1008.1
09:53 PM CDT 11.4 G 17.2 5.00 Rain 00.14 48.4 46.9 95% 43.5 NA 29.78 1008.5
09:33 PM CDT 11.4 5.00 Rain 00.09 48.6 46.9 94% 43.9 NA 29.79 1008.8
09:13 PM CDT NE 9.2 5.00 Rain 00.03 48.7 46.9 93% 44.8 NA 29.81 1009.2
08:53 PM CDT NE 11.4 G 16.1 5.00 Rain 00.08 49.1 46.9 92% 44.4 NA 29.81 1009.2
08:33 PM CDT 13.9 G 18.3 7.00 Rain 00.03 49.5 46.9 91% 44.2 NA 29.79 1008.8
08:13 PM CDT 9.2 5.00 Light Rain 00.02 49.5 46.9 91% 45.7 NA 29.81 1009.2
07:53 PM CDT 10.3 7.00 Rain -- 49.6 46.8 90% 45.5 NA 29.81 1009.2
07:33 PM CDT 10.3 G 17.2 7.00 Cloudy -- 50.0 47.3 90% NA NA 29.81 1009.2
07:13 PM CDT 15.0 G 19.7 5.00 Light Rain -- 50.0 47.3 90% NA NA 29.81 1009.2
06:53 PM CDT NE 12.8 G 19.7 7.00 Light Rain -- 50.5 47.3 89% NA NA 29.81 1009.5
06:33 PM CDT 15.0 G 23.0 7.00 Partly Cloudy -- 50.9 47.7 89% NA NA 29.81 1009.2

Regional Weather Observation

SLAYTON (KDVP)

Heavy Rain
50.2 F

WINDOM MUNI AIRP (KMWM)

Rain
55.4 F

TRACY (KTKC)

Mostly Clear and Windy
73.4 F

WORTHINGTON (KOTG)

Cloudy
53.6 F

MARSHALL/RYAN (KMML)

Light Rain
48.2 F

REDWOOD FALL (KRWF)

Light Rain and Fog/Mist
48.2 F
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