Chehalis River near Grand Mound
3.4 mi- Level
- 129 ft
- Flow
- 243 cfs
Forecast peak 129 ft Mon 5 PM
Reading from Sat 7 AM · NWS gauge page
Appearance
Observed 7:15 AM PDT at KCLS
Foggy and 32°0°.
Today: low 36°2° (likely 32°0° to 38°3°), high 58°14° (likely 56°13° to 58°14°).
Now 32°0°
Fog · Feels like 29°−2°
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 8a | Fog | 32°0° (likely 32°0° to 38°3°) | 32°0° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 95% | 0 |
| Sat 9a | Cloudy | 35°2° (likely 34°1° to 41°5°) | 35°2° | 5% | 0 mph0 km/h, gusts 3 mph4 km/h | 96% | 87% | 0 |
| Sat 10a | Cloudy | 41°5° (likely 40°4° to 44°7°) | 41°5° | 5% | 0 mph0 km/h, gusts 3 mph4 km/h | 92% | 87% | 1 |
| Sat 11a | Cloudy | 46°8° (likely 45°7° to 49°9°) | 46°8° | 5% | 0 mph0 km/h, gusts 4 mph7 km/h | 85% | 85% | 1 |
| Sat 12p | Cloudy | 50°10° (likely 50°10° to 51°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 75% | 80% | 2 |
| Sat 1p | Cloudy | 54°12° (likely 52°11° to 54°12°) | 54°12° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 65% | 82% | 2 |
| Sat 2p | Cloudy | 56°13° (likely 54°12° to 56°13°) | 56°13° | 0% | 0 mph0 km/h, gusts 7 mph12 km/h | 58% | 82% | 2 |
| Sat 3p | Cloudy | 57°14° (likely 55°13° to 58°14°) | 57°14° | 0% | 0 mph0 km/h, gusts 8 mph12 km/h | 54% | 87% | 1 |
| Sat 4p | Cloudy | 58°14° (likely 55°13° to 58°14°) | 58°14° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 53% | 88% | 1 |
| Sat 5p | Cloudy | 56°13° (likely 54°12° to 57°14°) | 56°13° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 58% | 77% | 1 |
| Sat 6p | Cloudy | 54°12° (likely 51°11° to 54°12°) | 54°12° | 5% | 0 mph0 km/h, gusts 6 mph10 km/h | 65% | 79% | 0 |
| Sat 7p | Cloudy | 51°11° (likely 48°9° to 51°11°) | 51°11° | 5% | 0 mph0 km/h, gusts 5 mph8 km/h | 75% | 82% | 0 |
| Sat 8p | Cloudy | 47°8° (likely 47°8° to 48°9°) | 47°8° | 5% | 0 mph0 km/h, gusts 5 mph8 km/h | 79% | 82% | 0 |
| Sat 9p | Cloudy | 46°8° (likely 45°7° to 47°8°) | 46°8° | 5% | 0 mph0 km/h, gusts 5 mph8 km/h | 80% | 82% | 0 |
| Sat 10p | Cloudy | 44°7° (likely 44°7° to 46°8°) | 44°7° | 10% | 0 mph0 km/h, gusts 5 mph7 km/h | 82% | 85% | 0 |
| Sat 11p | Cloudy | 43°6° (likely 43°6° to 46°8°) | 43°6° | 20%, 0.06 in1.5 mm | 0 mph0 km/h, gusts 6 mph10 km/h | 84% | 98% | 0 |
| Sun 12a | Cloudy | 41°5° (likely 41°5° to 46°8°) | 41°5° | 20%, 0.06 in1.5 mm | 0 mph0 km/h, gusts 5 mph8 km/h | 89% | 93% | 0 |
| Sun 1a | Cloudy | 41°5° (likely 40°4° to 46°8°) | 41°5° | 20%, 0.06 in1.5 mm | 0 mph0 km/h, gusts 5 mph8 km/h | 91% | 99% | 0 |
| Sun 2a | Cloudy | 41°5° (likely 40°4° to 46°8°) | 41°5° | 30%, 0.06 in1.5 mm | 1 mph2 km/h from ESE, gusts 5 mph9 km/h | 89% | 100% | 0 |
| Sun 3a | Rain | 40°4° (likely 40°4° to 47°8°) | 40°4° | 40%, 0.06 in1.5 mm | 1 mph2 km/h from ESE, gusts 6 mph10 km/h | 90% | 100% | 0 |
| Sun 4a | Rain | 39°4° (likely 39°4° to 47°8°) | 39°4° | 40%, 0.06 in1.5 mm | 1 mph2 km/h from E, gusts 11 mph18 km/h | 90% | 100% | 0 |
| Sun 5a | Rain | 39°4° (likely 39°4° to 47°8°) | 37°3° | 90%, 0.23 in5.8 mm | 3 mph5 km/h from E, gusts 15 mph24 km/h | 89% | 100% | 0 |
| Sun 6a | Rain | 38°3° (likely 38°3° to 49°9°) | 36°2° | 80%, 0.23 in5.8 mm | 3 mph5 km/h from E, gusts 14 mph23 km/h | 92% | 100% | 0 |
| Sun 7a | Rain | 37°3° (likely 37°3° to 46°8°) | 34°1° | 40%, 0.23 in5.8 mm | 3 mph5 km/h from E, gusts 10 mph16 km/h | 94% | 100% | 0 |
| Sun 8a | Rain | 38°3° (likely 38°3° to 46°8°) | 34°1° | 40%, 0.23 in5.8 mm | 6 mph10 km/h from SE, gusts 12 mph19 km/h | 96% | 100% | 0 |
| Sun 9a | Rain | 38°3° (likely 38°3° to 47°8°) | 34°1° | 60%, 0.23 in5.8 mm | 6 mph10 km/h from SE, gusts 17 mph27 km/h | 100% | 99% | 0 |
| Sun 10a | Rain | 43°6° (likely 43°6° to 48°9°) | 39°4° | 60%, 0.23 in5.8 mm | 6 mph10 km/h from SE, gusts 20 mph33 km/h | 100% | 98% | 0 |
| Sun 11a | Drizzle | 47°8° (likely 47°8° to 49°9°) | 44°7° | 70%, 0.09 in2.3 mm | 6 mph10 km/h from SE, gusts 20 mph32 km/h | 98% | 97% | 0 |
| Sun 12p | Drizzle | 50°10° (likely 48°9° to 51°11°) | 48°9° | 70%, 0.09 in2.3 mm | 6 mph10 km/h from SE, gusts 19 mph30 km/h | 91% | 91% | 1 |
| Sun 1p | Rain | 52°11° (likely 50°10° to 53°12°) | 52°11° | 70%, 0.09 in2.3 mm | 6 mph10 km/h from SE, gusts 18 mph28 km/h | 85% | 85% | 0 |
| Sun 2p | Cloudy | 54°12° (likely 50°10° to 55°13°) | 54°12° | 60%, 0.09 in2.3 mm | 6 mph10 km/h from SE, gusts 17 mph27 km/h | 81% | 84% | 1 |
| Sun 3p | Cloudy | 54°12° (likely 51°11° to 55°13°) | 54°12° | 50%, 0.09 in2.3 mm | 6 mph10 km/h from SE, gusts 17 mph27 km/h | 79% | 88% | 0 |
| Sun 4p | Rain | 56°13° (likely 51°11° to 56°13°) | 56°13° | 40%, 0.09 in2.3 mm | 6 mph10 km/h from SE, gusts 19 mph30 km/h | 77% | 96% | 1 |
| Sun 5p | Cloudy | 54°12° (likely 51°11° to 54°12°) | 54°12° | 60%, 0.05 in1.3 mm | 5 mph8 km/h from SE, gusts 17 mph28 km/h | 81% | 100% | 0 |
| Sun 6p | Cloudy | 53°12° (likely 50°10° to 53°12°) | 53°12° | 60%, 0.05 in1.3 mm | 5 mph8 km/h from SE, gusts 16 mph25 km/h | 84% | 97% | 0 |
| Sun 7p | Rain | 51°11° (likely 50°10° to 53°12°) | 49°9° | 60%, 0.05 in1.3 mm | 5 mph8 km/h from SE, gusts 14 mph23 km/h | 90% | 91% | 0 |
| Sun 8p | Rain | 48°9° (likely 48°9° to 52°11°) | 47°8° | 60%, 0.05 in1.3 mm | 3 mph5 km/h from ESE, gusts 14 mph22 km/h | 95% | 87% | 0 |
| Sun 9p | Cloudy | 47°8° (likely 47°8° to 51°11°) | 46°8° | 60%, 0.05 in1.3 mm | 3 mph5 km/h from ESE, gusts 13 mph21 km/h | 96% | 88% | 0 |
| Sun 10p | Rain | 46°8° (likely 46°8° to 50°10°) | 45°7° | 60%, 0.05 in1.3 mm | 3 mph5 km/h from ESE, gusts 18 mph28 km/h | 95% | 93% | 0 |
| Sun 11p | Cloudy | 46°8° (likely 46°8° to 50°10°) | 44°7° | 80%, 0.03 in0.8 mm | 5 mph8 km/h from E, gusts 17 mph28 km/h | 94% | 97% | 0 |
| Mon 12a | Cloudy | 45°7° (likely 45°7° to 49°9°) | 43°6° | 80%, 0.03 in0.8 mm | 5 mph8 km/h from E, gusts 20 mph31 km/h | 95% | 96% | 0 |
| Mon 1a | Cloudy | 45°7° (likely 45°7° to 49°9°) | 42°6° | 80%, 0.03 in0.8 mm | 5 mph8 km/h from E, gusts 17 mph27 km/h | 96% | 88% | 0 |
| Mon 2a | Rain | 44°7° (likely 44°7° to 49°9°) | 41°5° | 80%, 0.03 in0.8 mm | 5 mph8 km/h from E, gusts 13 mph21 km/h | 97% | 76% | 0 |
| Mon 3a | Rain | 43°6° (likely 43°6° to 49°9°) | 41°5° | 80%, 0.03 in0.8 mm | 5 mph8 km/h from E, gusts 12 mph19 km/h | 97% | 97% | 0 |
| Mon 4a | Rain | 43°6° (likely 43°6° to 49°9°) | 40°4° | 80%, 0.03 in0.8 mm | 5 mph8 km/h from E, gusts 14 mph22 km/h | 98% | 100% | 0 |
| Mon 5a | Rain | 42°6° (likely 42°6° to 49°9°) | 40°4° | 30%, 0.01 in0.3 mm | 3 mph5 km/h from E, gusts 12 mph20 km/h | 98% | 88% | 0 |
| Mon 6a | Rain | 41°5° (likely 41°5° to 50°10°) | 40°4° | 30%, 0.01 in0.3 mm | 3 mph5 km/h from E, gusts 7 mph11 km/h | 99% | 92% | 0 |
| Mon 7a | Rain | 41°5° (likely 40°4° to 50°10°) | 39°4° | 30%, 0.01 in0.3 mm | 3 mph5 km/h from E, gusts 8 mph12 km/h | 99% | 99% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
90% chance · 0.53 in13 mm
Official NWS forecast
Today: Mostly cloudy. High near 58, with temperatures falling to around 56 in the afternoon. Wind around 0 mph.
Tonight: Rain after 11pm. Mostly cloudy. Low around 36, with temperatures rising to around 39 overnight. East wind 0 to 3 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
80% chance · 1.2 in31 mm
Afternoon
noon–6 PM
70% chance · 0.5 in13 mm
Evening
6 PM–midnight
80% chance · 0.28 in7.1 mm
Overnight
midnight–6 AM
80% chance · 0.16 in4.1 mm
Official NWS forecast
Day: Rain. Cloudy. High near 56, with temperatures falling to around 54 in the afternoon. East southeast wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain. Mostly cloudy, with a low around 40. East southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
50% chance · 0.02 in0.6 mm
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
30% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain before 5pm. Partly sunny, with a high near 59. Northeast wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Night: Mostly cloudy, with a low around 38.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
20% chance · 0.04 in1 mm
Afternoon
noon–6 PM
30% chance · 0.04 in0.9 mm
Evening
6 PM–midnight
30% chance · 0.07 in1.8 mm
Overnight
midnight–6 AM
80% chance · 0.13 in3.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain after 11am. Mostly cloudy, with a high near 59.
Night: A chance of rain. Mostly cloudy, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
70% chance · 0.08 in2 mm
Afternoon
noon–6 PM
80% chance · 0.13 in3.4 mm
Evening
6 PM–midnight
70% chance · 0.08 in2.1 mm
Overnight
midnight–6 AM
50% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 56.
Night: A chance of rain. Mostly cloudy, with a low around 34.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
40% chance · 0.05 in1.1 mm
Afternoon
noon–6 PM
60% chance · 0.15 in3.7 mm
Evening
6 PM–midnight
50% chance · 0.11 in2.9 mm
Overnight
midnight–6 AM
20% chance · 0.16 in4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 56.
Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 32.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 56.
Night: Partly cloudy, with a low around 32.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Dry, high 58°, low 36°.
79% chance of rain, high 56°, low 40°.
Dry, high 59°, low 38°, warming up.
Highs 50–59°; chance of precipitation on Wednesday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (SEW) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 129 ft Mon 5 PM
Reading from Sat 7 AM · NWS gauge page
Forecast peak 204 ft Sun 11 AM
Reading from Sat 6:45 AM · NWS gauge page
Forecast peak 177 ft Sun 11 AM
Reading from Sat 7 AM · NWS gauge page
Forecast peak 152 ft Mon 5 PM
Reading from Sat 7 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 70% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 15 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 32°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is about typical for the date.
On average 0° colder than normal (daily mean temperature).
Rochester weather by month: normals, records, snow and freeze dates
Sunrise 7:43 AM, sunset 6:08 PM.
Clouds most of the night (about 93% cover).
Waxing gibbous
97% lit · growing