Plan! needs attention 5 days Air + smoke Radar! needs attention Outdoor planning 1 2 3
Now
Temperature Rain Humidity Gusts 52° 8 AM 53° 11 AM 55° 3 PM 55° 4 PM 54° 6 PM 48° 9 PM 47° 11 PM 46° 12 AM 44° 4 AM 44° 7 AM
96% 100% 96% 96% 93% 100% 100% 96% 93% 96%
13 mph 12 mph 12 mph 10 mph 9 mph 8 mph 9 mph 9 mph 12 mph 15 mph 20 mph 23 mph 23 mph 22 mph 21 mph 21 mph 22 mph 23 mph 23 mph 23 mph 23 mph 24 mph 28 mph 30 mph
Thu 8:00 AM 52° Chance Rain Showers 48% rain 96% humidity Gusts 13 mph Thu 9:00 AM 53° Rain Showers 75% rain 100% humidity Gusts 12 mph Thu 10:00 AM 54° Rain Showers 94% rain 100% humidity Gusts 12 mph Thu 11:00 AM 53° Rain Showers 100% rain 100% humidity Gusts 10 mph Thu 12:00 PM 54° Rain Showers 100% rain 100% humidity Gusts 9 mph Thu 1:00 PM 54° Rain Showers 98% rain 100% humidity Gusts 8 mph Thu 2:00 PM 55° Rain Showers 94% rain 96% humidity Gusts 9 mph Thu 3:00 PM 55° Rain Showers 93% rain 96% humidity Gusts 9 mph Thu 4:00 PM 55° Rain Showers 86% rain 96% humidity Gusts 12 mph Thu 5:00 PM 54° Rain Showers 81% rain 96% humidity Gusts 15 mph Thu 6:00 PM 54° Rain Showers 77% rain 93% humidity Gusts 20 mph Thu 7:00 PM 52° Rain Showers Likely 65% rain 93% humidity Gusts 23 mph Thu 8:00 PM 49° Chance Rain Showers 47% rain 100% humidity Gusts 23 mph Thu 9:00 PM 48° Chance Rain Showers 46% rain 100% humidity Gusts 22 mph Thu 10:00 PM 48° Slight Chance Rain Showers 23% rain 100% humidity Gusts 21 mph Thu 11:00 PM 47° Cloudy 11% rain 100% humidity Gusts 21 mph Fri 12:00 AM 46° Mostly Cloudy 5% rain 96% humidity Gusts 22 mph Fri 1:00 AM 45° Mostly Cloudy 2% rain 93% humidity Gusts 23 mph Fri 2:00 AM 44° Mostly Cloudy 1% rain 93% humidity Gusts 23 mph Fri 3:00 AM 43° Mostly Cloudy 2% rain 93% humidity Gusts 23 mph Fri 4:00 AM 44° Mostly Cloudy 5% rain 93% humidity Gusts 23 mph Fri 5:00 AM 43° Mostly Cloudy 10% rain 96% humidity Gusts 24 mph Fri 6:00 AM 44° Mostly Cloudy 13% rain 96% humidity Gusts 28 mph Fri 7:00 AM 44° Chance Rain Showers 26% rain 96% humidity Gusts 30 mph 1 Next best time outsideThu 8:30 AM–1:00 PM 2 hours outside within this window Mild temperatures, light wind, a chance of rain. Watch for: thunder and lightning. Not checked: air quality and UV. 2 Another good timeThu 4:00 PM–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, limited daylight. Not checked: UV. 3 One more good timeFri 6:00 AM–8:15 AM 2 hours outside within this window Temperatures outside your comfort range, some wind, rain unlikely. Watch for: thunder and lightning, limited daylight. Not checked: UV.
A little farther out
The next five days
Today 55° 47°
Fri 50° 36°
Sat 55° 30°
Sun 62° 41°
Mon 65° 44°
Today Today looks wet for a meaningful stretch.
Rain 100%
Humidity 93–100%
Wind 23 mph Fri Friday looks breezy.
Rain 37%
Humidity 58–100%
Wind 32 mph Sat Saturday looks fairly quiet.
Rain 0%
Humidity 45–100%
Wind 20 mph Sun Sunday looks fairly quiet.
Rain 0%
Humidity 46–86%
Wind 24 mph Mon Monday looks fairly quiet.
Rain 1%
Humidity 50–96%
Wind 14 mph Today 55° / 47° Today looks wet for a meaningful stretch. 100% rain · Humidity 93–100% · Wind 23 mph Fri 50° / 36° Friday looks breezy. 37% rain · Humidity 58–100% · Wind 32 mph Sat 55° / 30° Saturday looks fairly quiet. 0% rain · Humidity 45–100% · Wind 20 mph Sun 62° / 41° Sunday looks fairly quiet. 0% rain · Humidity 46–86% · Wind 24 mph Mon 65° / 44° Monday looks fairly quiet. 1% rain · Humidity 50–96% · Wind 14 mph Environmental watch
Air quality + smoke 19 Good US AQI Good through 12 PM.
Now 19 Good fine particles 12 PM 35 Good fine particles Sky check
No plume detected overhead Satellite view · Updated Thu 7:45 AM Air near ground 19 · Good US AQI
Rain, in motion · Past four hours
Castalia radar
Ready when you are See what is moving toward Castalia. Watch the last four hours of rain, then search any nearby trail, lake, or address.
Radar animation for Castalia, 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 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 7 PM Use caution Selected time Now Use caution Thunder is possible.
Humidity 96%
Wind 6 mph
Gusts 13 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 Waterloo area, about 56 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.