Cottonwood Creek Water Temperature Forecast

Monument, Oregon — MSWCD Gage Station
Forecast: Monday, April 13, 2026 Temp: Apr 10 – Apr 20, 2026 Flow: Apr 06 – Apr 17 (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
Apr 13
💧 Cool
MOUTH
9.9°C
50°F
UPSTREAM
8.1°C
47°F
Tue
Apr 14
💧 Cool
MOUTH
9.3°C
49°F
UPSTREAM
7.3°C
45°F
Wed
Apr 15
💧 Cool
MOUTH
8.8°C
48°F
UPSTREAM
6.8°C
44°F
Thu
Apr 16
❄ Cold
MOUTH
6.9°C
44°F
UPSTREAM
4.8°C
41°F
Fri
Apr 17
💧 Cool
MOUTH
7.6°C
46°F
UPSTREAM
5.8°C
42°F
Sat
Apr 18
💧 Cool
MOUTH
8.9°C
48°F
UPSTREAM
7.3°C
45°F
Sun
Apr 19
💧 Cool
MOUTH
9.7°C
49°F
UPSTREAM
8.1°C
47°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
Apr 13
Cloudy
44°F7°C
RH 82% · DP 40°F
Tue
Apr 14
🌥
Cool
44°F7°C
RH 63% · DP 32°F
Wed
Apr 15
Cloudy
42°F6°C
RH 69% · DP 33°F
Thu
Apr 16
🌥
Cool
37°F3°C
RH 59% · DP 23°F
Fri
Apr 17
🌥
Cool
42°F5°C
RH 57% · DP 26°F
Sat
Apr 18
🌥
Cool
48°F9°C
RH 53% · DP 30°F
Sun
Apr 19
🌤
Fair
51°F10°C
RH 55% · DP 34°F

Daily Detail (°F with °C below)

DateSrcObs WaterPred MouthPred Upstream Flow (cfs)Gage (ft)Air (°F)RH (%)
Fri Apr 10 Obs -- 53.511.9°C 49.59.7°C 9.5 Pred 3.109 Pred 53.8 57
Sat Apr 11 Obs -- 53.211.8°C 49.89.9°C 7.2 Pred 3.047 Pred 50.9 77
Sun Apr 12 Obs -- 51.210.6°C 48.18.9°C 10.9 Pred 3.142 Pred 46.5 85
Today Obs -- 49.89.9°C 46.68.1°C 12.2 Pred 3.170 Pred 44.4 82
Tue Apr 14 Fcst -- 48.89.3°C 45.27.3°C 13.1 Pred 3.188 Pred 44.4 63
Wed Apr 15 Fcst -- 47.88.8°C 44.26.8°C 15.7 Pred 3.236 Pred 42.2 69
Thu Apr 16 Fcst -- 44.56.9°C 40.64.8°C 19.5 Pred 3.301 Pred 36.7 59
Fri Apr 17 Fcst -- 45.67.6°C 42.45.8°C 22.4 Pred 3.344 Pred 41.6 57
Sat Apr 18 Fcst -- 48.08.9°C 45.17.3°C 18.0 Pred 3.277 Pred 47.9 53
Sun Apr 19 Fcst -- 49.59.7°C 46.68.1°C 22.6 Pred 3.347 Pred 50.7 55
Mon Apr 20 Fcst -- 49.09.4°C 46.27.9°C 25.1 Pred 3.383 Pred 48.2 62
Cottonwood Creek Water Temperature Prediction System • Generated 2026-04-13
Models: RF flow (Starr Ridge SNOTEL + Monument Wx) → Ridge water temperature