Cottonwood Creek Water Temperature Forecast

Monument, Oregon — MSWCD Gage Station
Forecast: Saturday, May 30, 2026 Temp: May 27 – Jun 06, 2026 Flow: May 23 – Jun 03 (obs + predicted)
Water temperatures are below alert thresholds (23.0°C / 73.4°F).

7-Day Water Temperature Forecast — Cottonwood Creek

🧊 0-2°C Frigid ❄ 3-6°C Cold 💧 7-10°C Cool ✅ 11-17°C Optimal ☀ 18-22°C Warm 🌡 23-26°C Alert! ⚠ 27°C+ Critical
Today
May 30
✅ Optimal
MOUTH
12.6°C
55°F
UPSTREAM
10.1°C
50°F
Sun
May 31
✅ Optimal
MOUTH
13.7°C
57°F
UPSTREAM
11.6°C
53°F
Mon
Jun 01
✅ Optimal
MOUTH
14.6°C
58°F
UPSTREAM
12.6°C
55°F
Tue
Jun 02
✅ Optimal
MOUTH
15.8°C
60°F
UPSTREAM
14.0°C
57°F
Wed
Jun 03
✅ Optimal
MOUTH
15.9°C
61°F
UPSTREAM
13.9°C
57°F
Thu
Jun 04
✅ Optimal
MOUTH
15.6°C
60°F
UPSTREAM
13.6°C
57°F
Fri
Jun 05
✅ Optimal
MOUTH
16.3°C
61°F
UPSTREAM
14.1°C
57°F

Water Temperature — 3-Day Observed + 7-Day Forecast

Observed
Predicted Mouth
Predicted Upstream
Alert 23.0°C
🧊 0-2°C Frigid
❄ 3-6°C Cold
💧 7-10°C Cool
✅ 11-17°C Optimal
☀ 18-22°C Warm
🌡 23-26°C Alert
⚠ 27°C+ Critical

Discharge (cfs) & Gage Height (ft) — 7-Day Observed + 4-Day Predicted

Observed Flow
Predicted Flow
Predicted flow uses the trained Random Forest model driven by weather forecast and SNOTEL data from Starr Ridge.

7-Day Weather Forecast — Monument, OR

Today
May 30
☁
Cloudy
47° / 41°F 8° / 5°C
RH 72% · DP 35°F
Sun
May 31
🌤
Fair
68° / 37°F 20° / 3°C
RH 47% · DP 31°F
Mon
Jun 01
☀
Sunny
74° / 40°F 23° / 4°C
RH 41% · DP 32°F
Tue
Jun 02
☀
Sunny
80° / 46°F 27° / 8°C
RH 39% · DP 36°F
Wed
Jun 03
☀
Sunny
76° / 51°F 24° / 11°C
RH 45% · DP 40°F
Thu
Jun 04
☀
Sunny
75° / 47°F 24° / 8°C
RH 46% · DP 37°F
Fri
Jun 05
☀
Sunny
77° / 47°F 25° / 8°C
RH 43% · DP 36°F

Daily Detail (°F with °C below)

DateSrcObs WaterPred MouthPred Upstream Flow (cfs)Gage (ft)Air (°F)RH (%)
Wed May 27 Obs 60.615.9°C 59.115.1°C 55.012.8°C 2.5 2.828 59.2 68
Thu May 28 Obs 62.316.8°C 62.717.0°C 58.914.9°C 3.4 2.878 64.5 66
Fri May 29 Obs 58.414.7°C 60.816.0°C 56.413.5°C 6.6 3.001 56.3 61
Today Obs 57.013.9°C 54.712.6°C 50.210.1°C 5.5 2.966 43.0 72
Sun May 31 Fcst -- 56.713.7°C 52.911.6°C 5.0 Pred 2.945 Pred 53.2 47
Mon Jun 01 Fcst -- 58.314.6°C 54.712.6°C 4.4 Pred 2.923 Pred 58.1 41
Tue Jun 02 Fcst -- 60.415.8°C 57.114.0°C 3.9 Pred 2.901 Pred 63.5 39
Wed Jun 03 Fcst -- 60.615.9°C 57.013.9°C 3.4 Pred 2.879 Pred 62.8 45
Thu Jun 04 Fcst -- 60.015.6°C 56.513.6°C 3.0 Pred 2.859 Pred 60.6 46
Fri Jun 05 Fcst -- 61.316.3°C 57.414.1°C 2.6 Pred 2.838 Pred 61.7 43
Sat Jun 06 Fcst -- 60.215.7°C 55.813.2°C 2.4 Pred 2.821 Pred 56.7 49
Cottonwood Creek Water Temperature Prediction System • Generated 2026-05-30
Models: RF flow (Starr Ridge SNOTEL + Monument Wx) → Ridge water temperature