Plan! needs attention 5 days Air + smoke Radar! needs attention Outdoor planning 1
Now
Temperature Rain Humidity Gusts 46° 10 AM 44° 1 PM 44° 5 PM 43° 6 PM 41° 8 PM 39° 11 PM 37° 1 AM 36° 2 AM 31° 6 AM 31° 9 AM
79% 79% 82% 86% 93% 92% 89% 89% 100% 100%
33 mph 36 mph 38 mph 38 mph 39 mph 39 mph 39 mph 39 mph 39 mph 38 mph 40 mph 39 mph 37 mph 35 mph 32 mph 29 mph 28 mph 25 mph 24 mph 22 mph 20 mph 16 mph 14 mph 14 mph
Thu 10:00 AM 46° Sunny 0% rain 79% humidity Gusts 33 mph Thu 11:00 AM 46° Sunny 0% rain 78% humidity Gusts 36 mph Thu 12:00 PM 44° Mostly Cloudy 3% rain 79% humidity Gusts 38 mph Thu 1:00 PM 44° Mostly Cloudy 7% rain 79% humidity Gusts 38 mph Thu 2:00 PM 44° Mostly Cloudy 8% rain 82% humidity Gusts 39 mph Thu 3:00 PM 44° Slight Chance Rain Showers 19% rain 82% humidity Gusts 39 mph Thu 4:00 PM 44° Slight Chance Rain Showers 18% rain 82% humidity Gusts 39 mph Thu 5:00 PM 44° Slight Chance Rain Showers 24% rain 82% humidity Gusts 39 mph Thu 6:00 PM 43° Chance Rain Showers 37% rain 86% humidity Gusts 39 mph Thu 7:00 PM 44° Chance Rain Showers 26% rain 86% humidity Gusts 38 mph Thu 8:00 PM 41° Slight Chance Rain Showers 21% rain 93% humidity Gusts 40 mph Thu 9:00 PM 41° Slight Chance Rain Showers 19% rain 93% humidity Gusts 39 mph Thu 10:00 PM 40° Slight Chance Rain Showers 18% rain 92% humidity Gusts 37 mph Thu 11:00 PM 39° Cloudy 9% rain 92% humidity Gusts 35 mph Fri 12:00 AM 38° Mostly Cloudy 9% rain 92% humidity Gusts 32 mph Fri 1:00 AM 37° Cloudy 3% rain 89% humidity Gusts 29 mph Fri 2:00 AM 36° Cloudy 1% rain 89% humidity Gusts 28 mph Fri 3:00 AM 34° Mostly Cloudy 0% rain 92% humidity Gusts 25 mph Fri 4:00 AM 33° Mostly Cloudy 0% rain 92% humidity Gusts 24 mph Fri 5:00 AM 32° Mostly Cloudy 0% rain 96% humidity Gusts 22 mph Fri 6:00 AM 31° Mostly Sunny 0% rain 100% humidity Gusts 20 mph Fri 7:00 AM 30° Mostly Sunny 0% rain 100% humidity Gusts 16 mph Fri 8:00 AM 29° Mostly Sunny 0% rain 100% humidity Gusts 14 mph Fri 9:00 AM 31° Mostly Sunny 0% rain 100% humidity Gusts 14 mph 1 Next best time outsideFri 6:00 AM–10:30 AM 2 hours outside within this window Temperatures outside your comfort range, light wind, rain unlikely. Watch for: cold stress, limited daylight. Not checked: air quality and UV.
A little farther out
The next five days
Today 46° 39°
Fri 46° 29°
Sat 66° 37°
Sun 59° 42°
Mon 61° 34°
Today Today looks breezy.
Rain 37%
Humidity 78–93%
Wind 40 mph Fri Friday looks breezy.
Rain 9%
Humidity 49–100%
Wind 32 mph Sat Saturday looks breezy.
Rain 0%
Humidity 37–62%
Wind 26 mph Sun Sunday looks breezy.
Rain 0%
Humidity 40–70%
Wind 28 mph Mon Monday looks fairly quiet.
Rain 0%
Humidity 36–85%
Wind 16 mph Today 46° / 39° Today looks breezy. 37% rain · Humidity 78–93% · Wind 40 mph Fri 46° / 29° Friday looks breezy. 9% rain · Humidity 49–100% · Wind 32 mph Sat 66° / 37° Saturday looks breezy. 0% rain · Humidity 37–62% · Wind 26 mph Sun 59° / 42° Sunday looks breezy. 0% rain · Humidity 40–70% · Wind 28 mph Mon 61° / 34° Monday looks fairly quiet. 0% rain · Humidity 36–85% · Wind 16 mph Environmental watch
Air quality + smoke 16 Good US AQI No fresh outlook yet.
Sky check
No plume detected overhead Satellite view · Updated Thu 7:45 AM Air near ground 16 · Good US AQI
Rain, in motion · Past four hours
Heimdal radar An active official alert is in effect. Its affected area is described above the briefing.
Ready when you are See what is moving toward Heimdal. Watch the last four hours of rain, then search any nearby trail, lake, or address.
Radar animation for Heimdal, covering the past four hours. A marked spot changes the map view, not the forecast on this page.
Outdoor fire check
Thinking about a backyard fire? Conditions could spread a fire quickly. Wind, gusts, or the combination of dry air and wind raises the concern.
Next 12 hours Choose a time to see what is driving the concern.
Now High concern 11 AM High concern 12 PM High concern 1 PM High concern 2 PM High concern 3 PM High concern 4 PM High concern 5 PM High concern 6 PM High concern 7 PM High concern 8 PM High concern 9 PM High concern Selected time Now High concern Sustained wind is 28 mph. Gusts may reach 33 mph.
Humidity 79%
Wind 28 mph
Gusts 33 mph Check local rules. Weather is only part of the decision. Check city, county, and land-manager fire restrictions before lighting any outdoor fire.
About these readings Sources and local limits Weather Forecasts, alerts, and radar come from NOAA and the National Weather Service.
Air quality This reading describes Bismarck area, about 85 miles away. Conditions can differ at this exact spot.
Smoke Satellite imagery shows smoke overhead. It cannot tell us how much smoke has reached breathing level.