Three Rivers South Weather

TownCentral Oregon

85°
😟
Comfort Score
48(D)
Moderate
Weather updated August 21, 2026 at 12:08 PM PDT

Three Rivers South weather at a glance

Three Rivers South is a town at 4,210 feet in Central Oregon. Notable features include town.

Current conditions are 85°F, feeling like 85°F, with 16% humidity, winds near 9 mph, 100% cloud cover, and a 0% chance of precipitation. Hot and dry and overcast.

The location-specific climate baseline shows an average daily high of 61°F and an average low of 35°F, with about 8.6 hours of sunshine per day and 0.5 hours of morning fog per day. Expected annual precipitation is approximately 10.5 inches.

Current Conditions

Temperature
85°F
Feels like 85°F
Humidity
16%
Wind
9 mph
NW • Gusts 18 mph
Cloud Cover
100%
Precip Chance
0%
Air Quality
83
Moderate

Comfort Breakdown

Less comfortableMore comfortable
Temperature35
Wind55
Sunshine5
Humidity75
Precipitation100
Air Quality
AQI 83 · Moderate
89

Hourly Forecast

Today

TimeTempComfortAQIWindPrecipConditions
Now85°48 (D)
83
Observed
9 mph0%☁️ Cloudy
1pm88°50 (C-)
4
AQI-eq
7 mph0%☁️ Cloudy
2pm89°36 (F)
2
AQI-eq
12 mph0%☁️ Cloudy
3pm90°32 (F)
2
AQI-eq
11 mph2%☁️ Cloudy
4pm90°35 (F)
1
AQI-eq
12 mph3% Partly Cloudy
5pm88°50 (C-)
1
AQI-eq
10 mph5%☁️ Cloudy
6pm87°39 (F)
1
AQI-eq
13 mph5%☁️ Cloudy
7pm85°55 (C-)
5
AQI-eq
6 mph3%☁️ Cloudy
8pm79°75 (B)
4
AQI-eq
5 mph3%☁️ Cloudy
9pm77°76 (B)
3
AQI-eq
7 mph4%☁️ Cloudy
10pm76°76 (B)
3
AQI-eq
5 mph6%☁️ Cloudy
11pm74°78 (B)
3
AQI-eq
6 mph8%☁️ Cloudy
How to read the Three Rivers South hourly chart

The hourly chart follows the next 48 forecast hours at Three Rivers South. Use the temperature view to see warming and cooling through the day, and the comfort view to see when the combined temperature, wind, clouds, precipitation, and air quality should feel most favorable.

The wind view compares sustained wind with stronger gusts at Three Rivers South. The AQI view uses the current observation for “Now” and modeled AQI-equivalent guidance for later hours when forecast smoke data is available.

Weather Maps

Satellite

GOES-West Visible

Radar

Precipitation

9 mph
Gusts 18 mph
Wind

Coming soon

About the weather maps for Three Rivers South

Each preview is centered on Three Rivers South, with the red pin marking its approximate location. Satellite imagery provides cloud context, radar shows nearby precipitation, and the fog view shows the marine-layer or low-cloud field when that regional layer is available.

These images cover a wider area than the point forecast, so a nearby cloud or rain band may not be directly over Three Rivers South. Open a preview for the interactive map and its latest timestamp before making a weather-sensitive decision.

7-Day Forecast

DayHigh/LowComfortPrecipConditions
Today90° / 58°60 (C)8%☀️ Sunny
Sat79° / 58°81 (B)7%☀️ Sunny
Sun80° / 46°77 (B)0%☀️ Sunny
Mon87° / 51°67 (C)2%☀️ Sunny
Tue88° / 55°68 (C)1%☀️ Sunny
Wed80° / 50°67 (C)1%☀️ Sunny
Thu🏆 Best77° / 44°84 (B)4%☀️ Sunny

Best day this week: Thu (Comfort score: 84)

Climate Dashboard

Current conditions vs. HRRR rolling destination baseline

Today's High vs Normal
90°Fforecast
8° above normal
Normal: 82°F
Rainfall Year-to-Date
2.5"
49% below average
30-yr avg: 4.9"
Sunny Days
19last 28 days
9 fewer than baseline
Typical: 28
Foggy Days
1last 28 days
vs 0 typical
Foggier than usual
Avg Wind Speed
9.5 mphlast 28 days
2.7 mph windier than baseline
Typical: 6.8 mph
Comfort Score
7928-day avg
17 pts above typical
Recent baseline: 62
What the Three Rivers South climate comparisons mean

These cards compare recent conditions at Three Rivers South with the available local baseline. Temperature and year-to-date rainfall use long-term normals when available; fog, sunshine, wind, and comfort use the matching recent or modeled baseline identified on each card.

Positive and negative differences describe how Three Rivers South departs from its own usual pattern. They should not be read as a direct comparison with another city or as a forecast beyond the period shown.

Historical Climate Data

Long-term weather patterns and climate data

Data sources: NOAA HRRR rolling destination baseline for recent temperature, precipitation, fog, cloud, wind, humidity, and sunshine signals.

Climate Overview

Based on HRRR rolling destination baseline (2024-06-01 to 2026-03-31)

76
Avg Comfort
60.7°
Avg High
34.7°
Avg Low
57%
Perfect Days
☀️ Avg Sunshine8.6h/day
🌫️ Avg Fog0.5h/day
💧 Avg Annual Rain10.5"
🌧️ Rainy Days/yr61 (17%)
🌫️ Foggy Days/yr21
✨ Perfect Days (80+)383

🌟 Best Months to Visit

1. June94
75.8° / 44.2° · ☀️ 12.3h
0 foggy days · 1 rainy days
2. May91
65.5° / 37.2° · ☀️ 11.6h
0 foggy days · 2 rainy days
3. September89
77.5° / 42.7° · ☀️ 9.9h
0 foggy days · 1 rainy days

⚠️ Challenging Months

1. December21
41.7° / 25.6° · ☀️ 4.3h
💧 4.1" · 16 rainy days · 4 foggy days
2. February24
41.7° / 22.7° · ☀️ 5.4h
💧 1.7" · 9 rainy days · 5 foggy days
3. January24
39.2° / 19.9° · ☀️ 5.5h
💧 0.8" · 7 rainy days · 7 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
June 20249375.4° / 44.4°12.1h0d0.05"28
July 20249089.8° / 50.7°12.7h0d0"28
August 20249182° / 47.2°11h0d0.09"30
September 20249277.4° / 42.4°10.1h0d0"29
October 20248263.1° / 32.8°7.3h0d0.51"21
November 20245142.2° / 27.6°4.4h3d2.25"4
December 20244538.2° / 21.7°4.3h5d5.31"0
January 20255236.7° / 16.9°5.3h4d1.5"0
February 20255137.4° / 19.3°4.9h3d2"2
March 20256245.9° / 28.9°6.8h2d2.88"8
April 20258857.9° / 31.2°10.3h0d0.28"25
May 20259065.5° / 37.2°11.6h0d0.48"27
June 20259676.1° / 43.9°12.6h0d0"30
July 20259384.5° / 51.1°12.2h0d0.04"31
August 20259383.2° / 49.4°11.2h0d0.07"31
September 20259177.6° / 43°9.7h0d0.09"28
October 20257757.6° / 32.6°7h1d0.61"18
November 20257352.1° / 30.9°6h4d0.57"13
December 20255545.1° / 29.3°4.3h2d2.65"4
January 20265841.7° / 22.9°5.8h10d0.38"2
February 20266346° / 26.1°6h7d1.7"5
March 20267855.6° / 32.1°7.6h1d0.43"19
Last updated: 6/11/2026

Climate Trends

Average Temperature by Month

97°F75°F53°F31°F10°FJun '24Jul '24Aug '24Sep '24Oct '24Nov '24Dec '24Jan '25Feb '25Mar '25Apr '25May '25Jun '25Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26Feb '26Mar '26
Average High
Average Low
About the Three Rivers South climate charts

The temperature chart compares average monthly highs and lows at Three Rivers South, showing both the seasonal cycle and the typical day-to-night range. The comfort chart summarizes how often the combined weather pattern is favorable rather than judging temperature alone.

Precipitation shows the total recorded or modeled rainfall for each month at Three Rivers South. Sunshine compares average bright-sky hours with the daylight available, while fog shows the average number of morning fog or low-cloud hours per day. Switch between the chart tabs to compare the same months across each measure.

Hourly Temperature, Wind, and Cloud Cover Patterns

Average local hour by month from 2016-05-01 to 2026-05-01

How to read the temperature heatmap for Three Rivers South

This heatmap shows how average temperature at Three Rivers South changes by hour and month. Read left to right for the seasons and top to bottom for the time of day; warmer colors identify the usual afternoon peaks and cooler colors show overnight and winter lows.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

How to read the wind heatmap for Three Rivers South

This heatmap shows the typical hourly wind pattern at Three Rivers South through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

How to read the cloud cover heatmap for Three Rivers South

This heatmap shows average cloud cover at Three Rivers South for every month and hour. Use it to see whether cloudiness is mainly an overnight and morning pattern or commonly persists during the part of the day you plan to visit.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage; the red marker shows the current month and hour.

Loading interactive climate heatmaps…

Location Details

📍
Coordinates
43.8207, -121.4658
⛰️
Elevation
4210 ft
🏷️
Type
Town
🏷️
Tags
#town
Map
Loading map...
Get Directions →

Frequently Asked Questions

Everything you need to know about weather and visiting Three Rivers South

What is the weather at Three Rivers South right now?

Current conditions at Three Rivers South are 85°F, feeling like 85°F, with 16% humidity, winds near 9 mph, 100% cloud cover, and a 0% chance of precipitation. Hot and dry and overcast

What temperatures are typical at Three Rivers South?

The location-specific record for 2024-06-01 through 2026-03-31 shows an average daily high of 61°F and an average low of 35°F at Three Rivers South. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Three Rivers South get?

The location-specific climate baseline estimates about 10.5 inches of precipitation and 61 days with measurable rain in a typical year at Three Rivers South. The monthly breakdown shows when that rain is most likely.

How often is Three Rivers South foggy?

Three Rivers South averages about 0.5 hours of morning fog per day across the location-specific climate baseline, with approximately 21 foggy days in a typical year. Fog varies considerably by season, so check the monthly breakdown and current forecast for visit planning.

What are the best months to visit Three Rivers South for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are June 2025 (76°F/44°F average high/low and a 96 comfort score), June 2024 (75°F/44°F average high/low and a 93 comfort score), and July 2025 (85°F/51°F average high/low and a 93 comfort score). “Best” depends on the activity, so use the monthly table for the exact tradeoffs.

What kind of destination is Three Rivers South?

Three Rivers South is a town at 4,210 feet. Notable features include town.

💡 Local Tip: Central Oregon weather can change dramatically within short distances and throughout the day. Always check current conditions before visiting Three Rivers South.
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