Plan! needs attention 5 days Air + smoke Radar! needs attention Outdoor planning 1
Now
Temperature Rain Humidity Gusts 47° 7 AM 53° 10 AM 54° 2 PM 55° 3 PM 54° 5 PM 51° 8 PM 47° 10 PM 46° 11 PM 43° 3 AM 42° 6 AM
96% 93% 86% 83% 83% 71% 74% 73% 93% 93%
8 mph 9 mph 10 mph 12 mph 14 mph 16 mph 18 mph 20 mph 20 mph 21 mph 23 mph 23 mph 24 mph 25 mph 26 mph 24 mph 25 mph 24 mph 24 mph 26 mph 28 mph 30 mph 32 mph 33 mph
Thu 7:00 AM 47° Rain Showers 85% rain 96% humidity Gusts 8 mph Thu 8:00 AM 49° Rain Showers 89% rain 96% humidity Gusts 9 mph Thu 9:00 AM 51° Rain Showers 91% rain 96% humidity Gusts 10 mph Thu 10:00 AM 53° Rain Showers 89% rain 93% humidity Gusts 12 mph Thu 11:00 AM 53° Rain Showers 92% rain 93% humidity Gusts 14 mph Thu 12:00 PM 53° Rain Showers 81% rain 89% humidity Gusts 16 mph Thu 1:00 PM 53° Rain Showers Likely 72% rain 89% humidity Gusts 18 mph Thu 2:00 PM 54° Chance Rain Showers 53% rain 86% humidity Gusts 20 mph Thu 3:00 PM 55° Chance Rain Showers 34% rain 83% humidity Gusts 20 mph Thu 4:00 PM 53° Slight Chance Rain Showers 22% rain 89% humidity Gusts 21 mph Thu 5:00 PM 54° Slight Chance Rain Showers 18% rain 83% humidity Gusts 23 mph Thu 6:00 PM 54° Cloudy 6% rain 77% humidity Gusts 23 mph Thu 7:00 PM 54° Mostly Cloudy 2% rain 69% humidity Gusts 24 mph Thu 8:00 PM 51° Cloudy 0% rain 71% humidity Gusts 25 mph Thu 9:00 PM 49° Mostly Cloudy 0% rain 71% humidity Gusts 26 mph Thu 10:00 PM 47° Mostly Cloudy 0% rain 74% humidity Gusts 24 mph Thu 11:00 PM 46° Partly Cloudy 0% rain 73% humidity Gusts 25 mph Fri 12:00 AM 44° Partly Cloudy 1% rain 82% humidity Gusts 24 mph Fri 1:00 AM 43° Partly Cloudy 1% rain 86% humidity Gusts 24 mph Fri 2:00 AM 43° Mostly Cloudy 1% rain 89% humidity Gusts 26 mph Fri 3:00 AM 43° Mostly Cloudy 1% rain 93% humidity Gusts 28 mph Fri 4:00 AM 43° Mostly Cloudy 1% rain 93% humidity Gusts 30 mph Fri 5:00 AM 42° Mostly Cloudy 1% rain 93% humidity Gusts 32 mph Fri 6:00 AM 42° Mostly Cloudy 2% rain 93% humidity Gusts 33 mph 1 Next best time outsideThu 7:45 AM–9:00 PM 2 hours outside within this window Temperatures outside your comfort range, some wind, a chance of rain. Watch for: thunder and lightning, visibility, limited daylight. Not checked: UV and air quality.
A little farther out
The next five days
Today 55° 46°
Fri 51° 36°
Sat 60° 31°
Sun 65° 43°
Mon 67° 47°
Today Today looks wet for a meaningful stretch.
Rain 92%
Humidity 69–100%
Wind 26 mph Fri Friday looks breezy.
Rain 3%
Humidity 52–93%
Wind 35 mph Sat Saturday looks fairly quiet.
Rain 0%
Humidity 40–100%
Wind 24 mph Sun Sunday looks breezy.
Rain 1%
Humidity 45–86%
Wind 25 mph Mon Monday looks fairly quiet.
Rain 2%
Humidity 50–96%
Wind 10 mph Today 55° / 46° Today looks wet for a meaningful stretch. 92% rain · Humidity 69–100% · Wind 26 mph Fri 51° / 36° Friday looks breezy. 3% rain · Humidity 52–93% · Wind 35 mph Sat 60° / 31° Saturday looks fairly quiet. 0% rain · Humidity 40–100% · Wind 24 mph Sun 65° / 43° Sunday looks breezy. 1% rain · Humidity 45–86% · Wind 25 mph Mon 67° / 47° Monday looks fairly quiet. 2% rain · Humidity 50–96% · Wind 10 mph Environmental watch
Air quality + smoke 7 Good US AQI No fresh outlook yet.
Sky check
No plume detected overhead Satellite view · Updated Thu 1:46 AM Air near ground 7 · Good US AQI
Rain, in motion · Past four hours
Alton radar
Ready when you are See what is moving toward Alton. Watch the last four hours of rain, then search any nearby trail, lake, or address.
Radar animation for Alton, 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? Use extra caution. There is no lower-concern three-hour stretch in the next 12 hours.
Next 12 hours Choose a time to see what is driving the concern.
Now Use caution 8 AM Use caution 9 AM Use caution 10 AM Use caution 11 AM Use caution 12 PM Use caution 1 PM Use caution 2 PM Use caution 3 PM Use caution 4 PM Use caution 5 PM Use caution 6 PM Use caution Selected time Now Use caution Thunder is possible.
Humidity 96%
Wind 5 mph
Gusts 8 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 Sioux City area, about 37 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.